Digital battery

The world’s first green building materials located in Changxing Island in Dalian, Sony VGP-BPS2 Sony VGP-BPS2A Dandong, environmentally friendly fuel to reach mass production, the largest comprehensive nation-sintering devices FGD combustion engine put into service Anshan, Liaoning, production companies own efforts have been made to improve Makes … … Historical experience shows that whenever the crisis is a selection of new technological breakthroughs, the birth of a new industrial revolution. Clear targets for reducing emissions and economic development, combining just last year, accompanied by a historic breakthrough in Liaoning for the economy to low carbon is to accelerate the development of the arrangement Moupian.

 

Industry manufacturing equipment for carbon “weak” in the

Although the weather is cold now, but in Anshan Road Industrial Planning Area Bay during the Anshan Steel Structure Co., Ltd. Eastern plant, workers are growing for the production of Liaoning Hongyanhe Nuclear Power Plant Unit No. 2 Songs Steel of the nuclear island. Meanwhile, the high-tech zone is located in Anshan, Liaoning Suppo Battery Co., Ltd. Jiuyi to foreign customers are also enhanced the production of the series of solar cells. Now, enter the field of economy with low emissions of carbon became equipment manufacturing enterprises in Liaoning new meaning development. Latitude D505 battery Latitude D510 battery

 

China has clearly made considerable efforts to develop low-carbon economy, focusing around a low consumption, low pollution and the delineation of an “economy of solar energy,” energy conservation Wind “,” Economics of Nuclear Energy “,” bio-energy economy “and so on.

 

The face of new industry and market than last year, companies in our province have a strategic vision for an active part in them, becoming a low carbon energy in a new era of business. S & P Co., Ltd. Liaoning Jiuyi last three years in the industry with new energy to the rechargeable battery to achieve a leap forward, companies now have for the United States, Japan, Germany and other countries of the world-renowned solar cell production value production reached 1000 million yuan. Heavy Machinery Bearing Co., Ltd. Liaoning last year, successfully developed a new bearing of wind generation is now in the field of wind energy in Inner Mongolia and other widely used. Haicheng Silver Peak Group since last year, winning consecutive games such as ventilation Datang large wind farm project, the fans turn for their manufacture. Haihua oils and fats Chemical Co., Ltd. has developed the raw material of lubricating oil, the market prospects are very good. In 2009, this wonderful story of the industry equipment manufacturing Liaoning continues to unfold. Tecra A3 battery Tecra A4 battery

 

New environment-friendly industry, ready to break

October 30, 2009, Dalian, Liaoning Province Changxing island green modern ceremony of the construction industry basic signing was held in Beijing, the Great Hall of the Golden Heart Group in Hong Kong, Dalian, investments in low intensity carbon in economic projects has been officially activated. The introduction of new environment-friendly windows and doors of the United States in 2010, the first phase of the project to produce energy efficient windows, doors and 2.5 million square meters, the second phase and third phase will produce more than 10 million square meters.

 

Meanwhile, the Hong Kong Golden Heart Group also obtained a Korean company GIB (quality control) of energy-saving green building materials in terms of patents in the world and set up a Heart of Gold green building (Holdings) Limited Group, the investment Changxing Island. GIB advent of building materials, is a revolution in building materials. It is not used in the construction process of wood and use a small amount of cement, thus avoiding deforestation, degradation of the environment. Building a house constructed with this low price, long life, with functions of fire prevention. Use of the material covered houses, their savings in energy consumption compared to traditional homes of more than 80%. This will allow the construction of energy-saving emission reduction to achieve significant breakthroughs. ThinkPad R52 battery ThinkPad T40 battery

 

Fuel more environmentally friendly to Dandong and mass production. Dandong City, Blue Fire from the New Energy Development Co., Ltd. produced by a liquid fuel eco on December 31, 2009, a trial successfully, is now entered into phase of mass production.

 

This fuel is a major component of the by-product of alcohol-based chemical production, adding a small amount of chemical raw materials, has done through the development of the scientific method. It is tasteless, non-irritating, safe alternative to gasoline use can all be done, but can also be used with gasoline. The use of the process, no need to change one of the original car parts, only the installation of a cell phone-size converter. At the same time, the price is still well below the current 90 # and 93 # gasoline prices. This product can be widely applied not only to travel at the same time also serve as a liquefied petroleum gas, natural gas, alternative and as a substitute for conventional oil fire boiler fuel.

 

In 2009, the new industry of environmental protection in Liaoning Province has been prepared to break the momentum of development. PB992A PB994A

 

Has been over a thousand enterprises to cleaner production

At the end of 2009, the largest comprehensive nation-sintering mechanism of desulfurization of flue gas appliance in the Western District Anshan Iron and Steel has been completed and commissioned. This is the Anshan Iron and Steel then a key energy saving projects that reduce emissions and services of environmental protection at provincial and municipal governments with the active support and assistance in a year and only 5 to implement. Commissioned reduce emissions of sulfur dioxide annually about 3000 tons, 1000 tons of dust emissions generated by the utilization of by-products to achieve zero emissions. Anshan Steel to build three units this year but such a device.

 

China’s current “Clean Production Promotion Law” clearly provides that cleaner production is taken to improve the design, use of clean energy and raw materials, the use of advanced technologies and equipment and other measures, the source to reduce pollution, improve the efficiency of resource use. The State encourages production and services in the implementation of units of cleaner production. From 2006, the province began to focus on M8403 A1079 audits of cleaner production companies mandatory and petrochemical, metallurgy, chemical industry, electric power, building materials, beer and pharmaceuticals, seven of the construction of 100 demonstration projects of cleaner production, electricity, metallurgy, coal, oil, mining and processing industry to create a zero discharge wastewater more than 60 companies. Currently, over 1,000 companies in our province have adopted clean production examination, so more than 80,000 tons of reducing chemical oxygen demand, sulfur dioxide and about 2 million tonnes, saving more than 500 million tons of coal.

 

Provincial Environmental Protection Agency, the official said that at the end of 2012, the province of all emissions of pollutants exceeding the national discharge standards or local, over the companies have approved the objective of controlling emissions are complete the mandatory verification of cleaner production. In 2014, total production, use or release of toxic and dangerous business, must complete the required review in its own production, while reducing emissions of key enterprises, the task is not completed timing of reductions in corporate governance of firms and time, but also mandatory cleaner production audit. PA3383U-1BRS PA3395U-1BRS

 

The presentation of the economy to low carbon future for the “save money”

Some experts estimate that last year, Liaoning actively available to the economy to low carbon is the pulse of Liaoning actual energy savings for the future development of wisdom.

 

Dalian Municipal Day of School Professor of Economics, Xie Xiu-ling that the economy with low carbon and practical benefits of the green industry and its impact on the economy, driving potential is great. For example, in the field of nuclear power equipment manufacturing, “China is heavy” base of nuclear energy in the manufacturing equipment of Dalian, a holistic approach has begun, resulting in the formation of a equipment of nuclear power and support more than 10 companies, according to the current contract in 2012, the nuclear power industry equipment may be the creation of four billion yuan in output value of Dalian. Dalian fed by 100 LED key enterprises can realize output value of 10 billion yuan added Green. 7 as a future national level, one of the new materials industry base Huayuankou Industrial Zone, Dalian, 2015, the area of new materials, new energy output could reach 100 billion yuan. High-Tech Zone, Dalian software service outsourcing industry in 2009, the sales income reached 33.5 billion euros.

 

Not only that, the future is the need to purchase carbon emissions and carbon emissions increases the production costs of the generals, and now everything in Liaoning, in fact, also in the future for companies to reduce production costs, energy savings for the future development of the company. Aspire 3000 battery LCBTP03003

Use rechargeable batteries for laptops, one of the advantages of the desktop, it can greatly facilitate a variety of environments using Sony VGP-BPL8 Sony VGP-BPL8A laptops. Introduced the first battery is nickel cadmium batteries (NiCd) battery but has a “memory effect”, each charge is required before the evacuation, very easy to use, and soon found himself nickel-metal hydride battery (NiMH ) replaced, NiMH not only failed to “memory effect”, but can do more per unit weight of 10% of electricity. The battery most commonly used is lithium-ion battery (Li-Ion), it is also ineffective “memory, compared to NiMH per unit of weight gain more power, the price two times higher than the NiMH . In the same weight, these three kinds battery is 1:1.2:1.9 ratios.

 

Notebook batteries currently used in three main categories: 1. Nickel-chromium batteries, 2. Ni-MH battery, 3. Lithium, they are generally expressed as: Ni-Cd Ni-Cd, Ni-MH Ni-MH, lithium-ion battery LI.

 

The purchase or replace the battery when the laptop for many users, “battery” may be unfamiliar. At the outset, batteries and batteries are two concepts. A battery is composed of several slightly bigger than your thumb, cylindrical, up to about 7.8 cm, 3.6 V is small units. They are the batteries, as a small battery, thanks to the combination series, that is, we see that the battery a. Then talk about how to determine if the battery is several nuclei: Inspiron 1520 battery Inspiron 1521 battery

 

One way: Disconnect the battery for the number of contacts to see, there are a few tens of cores. But it is a “minister” approach. Let’s take a look at “Cao Chong” is how, “said the elephant”: the look of your battery nominal number of v, such that 14.4v, then divided by 3.6 to 4, then turned out to be four batteries together in series. And then take a look at the capacity of the battery pack, for example 3800mAh, then prove that the two aforementioned sets of batteries in series, because the battery capacity is 1500 small - 2000mAh, more importantly, to two to reach 3800mAh. In both cases, the battery is 4 × 2 = 8 cores.

 

The composition of laptop battery

 

Notebook battery from the shells, printed circuit boards and batteries belonging lithium ion battery. People talk about batteries in general refers to the number of batteries in the battery mAh refers to the ability of the laptop battery.

 

Mainly by the protection circuit (or the secondary circuit protection), and the capacity of the circuits in two parts, the laptop battery charge and discharge management and safety.

 

Time Laptop Battery standby mainly by the value mAh decide. Under normal circumstances, a little more PA3399U-2BAS PA3399U-1BRS battery, the mAh value is greater than longest standby time. Battery life for notebook mainly by the charge and discharge times to measure the quality of the products are generally eligible to 500-600 times. Therefore, efficient use of laptop batteries within two years expired the battery is aging, standby affect the strong decrease of the mobility of laptops.

 

Laptop battery advice

 

Indeed, how to make good use of the battery Batteries, how to extend his schedule and use of living and so on, is undoubtedly the troubled mind of the majority of laptop users, a problem the use of laptop batteries There are many methods and techniques that we use usually requires more learning and application.

 

(A) Quick access to hibernation

 

No temporary use of portable computers to conserve battery power, you can set the agenda for power management, allowing the system to enter sleep mode after a period of time, but more or shorter will wait a few minutes, there is no way to make the system of the laptop immediately enter the sleep state? ThinkPad T43 battery ThinkPad T60 battery

 

Notebook computer system to allow quick access to the latent state of a simple method is to directly close the display. Press the representation would require little effort, you can make notebook computers to standby mode immediately and effectively save power. When you need to reuse the time, as long as the opening screen, the system automatically returns to pre-condition.

 

(B) the screen saving mode

 

TFT is the most important components of portable computer power to reduce its use of the battery when the power consumption, notebook makers have devised ingenious schemes, but generally are based on the screen brightness lower and even off the screen mode.

 

In some settings management of laptop power you can customize the brightness of the screen, most laptops with a shortcut keys specific adjust the brightness of the screen, typically 6 to 8-setting brightness level. Studio 1536 battery Studio 1537 battery

 

(C) Energy saving settings

 

Office machines using alternating current, most people may not be the computer attached great importance to energy saving features, but need to use batteries for laptops, using the Energy saving features should be taken seriously. How to design computer hardware more energy efficient, not a user problem to be solved. The user can be installed on the computer of the efficient use of energy saving option.

 

Energy saving settings require the user to set two: First, the computer BIOS setup program on energy saving in the profile settings, the most important thing is that there Energy savings in many settings of the operating system and operations. In the practical implementation of computer systems, Windows systems should outweigh the energy savings settings in the CMOS settings.

 

1. BIOS power saving settings

 

In the CMOS settings, most had a “power savings”, which may choose to “MaximumBatteryLife” and “Maximum Performance” and other options. “MaximumBatteryLife” is the recording power default setting mode. Computer power saving mode phones in several states such as F4809A F4812A Idle mode Idle mode, StandbyMode standby (standby) mode, SuspendMode suspend (sleep) mode. Notebooks, these parameters were able to regulate the consumption of energy, mainly in computer power saving state, the timely closure of some without the use of system equipment. If the state of waiting, turn off the monitor and hard drives, Hibernating apart from a rigorous monitoring and the hard drive, but also the memory contents can be saved on the hard drive, basic maintenance of the overall system of the computer closed, once activated, or restart the computer , office will be refurbished and pre-hibernation state. Energy saving settings in the CMOS, mainly determined by the IdleMode in StandbyMode the standby time set by the standby mode to enter SuspendMode time SuspendTimeout. Carnets PhoenixBIOS are most common. Energy saving various BIOS settings may be somewhat different, it should carefully read the screen.

 

2. Windows in the energy saving settings

 

For the average user in the Windows system to operate a better understanding of energy management can be simpler. Windows Help file in the “management hardware and software” entries, there are two laptops equipped with energy-saving elements on “Manage Energy Use” and “use of mobile machinery “in the laptop power management.” Energy saving settings in Windows, read the contents. Tecra A3 battery Tecra A4 battery

 

In the Windows “Control Panel”, “power management click, you can open the” Power Management Properties “dialog box. In the” Power Management Properties “dialog should be” power management “is set to “Laptop” and reasonable settlement “system delay”, “close the Monitors”, “Turn off hard disks” and other options. Another computer can control the opportunity to have some differences, options for the new plant and the latest computer software will be easier to implement, the detailed parameters should be based on characteristics of the computer and Windows files help to complete.

 

In addition, if your laptop integrated infrared port, no time to ban it, it can be extended the life of the laptop battery.

 

(D) Alarm settings

 

Set alarm battery time to prompt the user to record information. Is to click on Open “Control Panel”, double-click “Power” option, point “alarm” menu bar, alarm, battery low “default Windows98 column is 10%,” a serious shortage of battery alarm “Windows98 default column is 3%, may be according to the need for appropriate changes. Click the [Alarm Response] button, the warning “voice” and “displays” are selected, the “power level” May of time to select. Alarm limits so that when the battery is used, it will display a warning dialog and the buzzer alarm sounds to alert the user to record information about the delay. Finally click [OK] to exit the settings of power management. Vostro 1310 battery Vostro 1320 battery

 

(E) Opens the energy save function

 

In the “technology of extended laptop battery life ’section, we introduce the energy saving feature is the use of processor technology, which allows the performance of laptops are playing with their life stack between the time to achieve the best balance.

 

Most new notebook models in both the BIOS of the processor energy saving technology have given support, is enabled by default, if not open until the Enter the BIOS will support the option to open OK.

 

(Vi) The use of third party software to monitor battery status

 

In addition to Windows built-in features power management, there are many utilities available to monitor the battery status. For example, PowerCenter is a power monitoring tool available for free download (http://meMBers.xoom.com/TimothyBug/powercenter/index.htm). Only 800kb, is designed for computer software notebook services. In addition to the amount of PowerCenter shows the percentage of battery, but also to show the actual time and hours of time can be used. NF343 G1947

 

PowerCenter total of three display types.

(1) FullDisplay: In the window displays detailed information, including the use of battery or AC power, the percentage of the battery and the remaining time available.

(2) CompactDisplay: in use is always above the window.

(3) MinimizeDisplay: PowerCenter reduced to make the Windows taskbar, the display of information is relatively simple.

 

PowerCenter is also attached to a control center may be composed of six types of warning. When the battery - to a certain level, a warning time user, save the file being processed. In order not to waste electricity and CPU resources, PowerCenter to automatically detect the changes of state of the batteries.

 

(G) turns deliberately battery

 

Short battery on a regular basis to ensure a full charge. If you need to run completely out of battery power in the specific approach are: the dialog PowerManagement, BatteryDrain choose this particular method of feeding, all three options RunningonBatteries are fixed forever, this laptop will run. Select mode, then enter the Alerts tab and remove the warnings checkbox LowBattery and CriticalBattery check (yes, when the battery is low, the machine will not go into the suspended state). Then leave the computer running the CPU time of tasks, such as the computer automatically perform a number of computational complexity of the 3D demo program, so running out of 361742-001 371785-001 battery remaining, of course, these disposal N Do not forget to unplug the AC plug.

1 Introduction

 

The supply current lithium Sony VGP-BPS2B Sony VGP-BPS2C battery supply system development the main question is: After the battery in a group of security and life has decreased significantly, and even the fire of the battery frequent explosions and other serious accidents. The main reason contributing to this problem lies in battery technology Lithium Power Group, the study group applied technology and equipment, delays in development, to secure the integration of power lithium battery system to provide users of technology of lithium batteries integration of systems and products to solve the current problem and to promote the development of the power of lithium important subject.

 

Currently, the only battery power lithium has been basically have the extension and application conditions, but the technology of existing group, the group applied technology and equipment levels are not yet ripe. In other words, only lithium battery basically resolved the issues of security and life, and promotes the development of the power of lithium, the key is the cell technology, the technology group and BMS. Inspiron 6000 battery Inspiron 9300 battery

 

Determine the quality of individual cells in a group of post-quality battery power. In applications of battery power, the consistency of single-cell performance is particularly important given the current level of process control single manufacturing cell, through the battery produced in accordance with its actual performance filter, group, assembly is a realistic way. Currently, implementation of screening in industrial production, gathering method is based on the battery post in a small number of static parameters, with the group on drums, with the set control standard determines the distribution group completed the battery when the battery status of the single line of each sex. In the battery pack in use, the group differences in each state of the single battery battery appear gradually. Battery Management System (BMS) battery using process management, battery status in every single cell to adapt to a certain extent, you can keep the battery status in each cell of the unique coherence in order to avoid differences in the state cells caused by the accelerated deterioration of battery performance. The development needs of lithium batteries to raise the level of control of production process, the Panel selection of drums and distribution methods and systems for effective KD476 TD347 battery management and promote jointly.

 

2 lithium batteries power the concept of security and life

 

2.1 The root causes of insecurity in the battery

 

When the battery is part of the deviation occurs, as when the internal short circuit, discharge, high current overload, it will generate much heat, causing the battery to the system increases the temperature. When the battery system and achieve a higher temperature, resulting in a series of side effects, so the battery produces heat damage due to battery electrolyte flammable liquid, so the worst case, the battery would catch fire [1].

 

In the case of non-normal use (such as overhead), lithium battery anode ion is likely to surface, the electron precipitation as lithium metal, and gradually assembled in a lithium dendrite perforated diaphragm, Connectivity is negative, causing the battery internal micro-short. Lithium-ion batteries used in high compression, high-boiling point organic electrolyte. In the short-circuit, overload, high temperature and not the other-the conditions of normal use, the lithium-ion battery internal temperature increases, the electrolyte may be decomposed into a number of gas will be generated within the waterproof case for relatively high pressure. Once this pressure great enough to break the casing of the battery, rupture occurs, and even lead to combustion or explosion [2]. A1175 MacBook Pro 15 inch battery

 

High power load and discharge the large capacity lithium-powered batteries in the harsh conditions of use of part of the battery easier to induce deviations occur, giving rise to questions security.

 

2.2 Battery Management System (BMS) the important role of

 

Battery Li-ion power ideal for high performance, consistency, as long as the use of the filling process, however, well placed, there is no security problem, but the reality is that the plant quality mobile phone battery in full conformity with the standards, but should use an incident of explosion, Pack laptop battery is also continuing fire, explosions, and product recalls reported. Of life resulting from the battery until the end of recovery, there are security issues, even at the plant in full compliance with international safety standards in the course of evolution of the state of Security in a state of insecurity and of good quality, single cell performance to reach the lifetime limit of gradual decline, poor quality of the single cell, as part of its performance will start to appear and a variety of abnormal deterioration recession, worried about the insecurity of the state to enter. It is a gradual process of incremental changes. The battery management system is that unlike some battery manufacturers as a luxury but a must have, but also applied consistently throughout the battery. Applications of the battery management system at home and abroad have been many studies and start in many areas have been able to meet the needs of specific markets, applications, power lithium battery for the system of advanced battery management requirements more stringent to ensure the safe use of battery power, battery power lithium-management system the primary task. Satellite A80 battery Satellite M100 battery

 

3 Battery Management Systems

 

A typical battery charge balance system management, its methods of work is to connect a battery good set of charges at the same time, each battery of simple tests in the battery voltage terminal when a single voltage battery terminal is high, individual cells in parallel with the balance of the circuit for the diversion battery, reduce speed single battery charge and the rate of terminal voltage increases, so that the only voltage battery terminal tends to a balanced line, thereby to avoid the standard battery charge of each single battery and discharge characteristics differences affect battery life. As the shunt charging the battery in parallel with the monomer part of the pricing of energy consumption of a balanced circuit, fever balanced circuit, a balanced circuit balanced the limited capacity. For high capacity, high power, high current load, the remaining balance of the capacity of the circuit can respond to real needs.

 

In the last part of the life of the battery, battery performance, the gradual internal deterioration, under the old ceiling value of rejection and constant current charge-discharge or recharge values occur in May excessive discharge, more responsible, leading to a further deterioration of the battery internal resistance and other parameters, charge and discharge process of the battery will be seriously hot, the existing BMS, but it can monitor the battery temperature increases heat anomaly of the external load or discharge path, but this time the battery is already in a state of insecurity, to cut the access road can not prevent the cell from the electrochemical reaction process except the battery continues to warm, and even a risk of explosion still exists. Anomalies of temperature increases in the farm, suddenly cut the path of discharge for the equipment require continuous power supply, such as electric vehicles, in May, the device to perform the security issues. Tecra A4 battery Tecra A5 battery

 

4 based on measuring the internal resistance and state of the battery system management more

 

Studies have shown that with the battery charge - discharge cycles increases, reduced battery capacity, increases the internal resistance of the battery, the battery performance degradation and eventually internal failure complete process is a gradual and cumulative, inconsistencies in the group will accelerate the battery in the battery state of insecurity.

 

This paper presents a comparison of the measurement of internal resistance and the management system of the state of the battery, as shown in Figure 1, to control the heart of microcontroller, pre-stored in the memory of every single voltage battery terminal under different resistance values of the initial value and the error allowed the charging process of each single cell in different sections of the voltage rate of rise of tension terminal and the error allow the value of the cumulative value of the load, the load voltage, the discharge voltage range, charging cut-off voltage, the discharge cut-off voltage, battery temperature, the range load current value and perception of current error to allow the value of discharge current to protect the value of a balanced starting voltage, the value of parameters such as voltage unbalance. Charging and discharging process of loading and unloading process of testing various parameters of each charging process before the process of billing and charging after the battery to measure and record every single potential terminal battery terminal voltage rising rate the load current, load volume and internal resistance of the battery, and with measured and recorded before the charging parameters to compare, analyze the amount of battery charge and battery only internal resistance, the voltage of terminal voltage terminals to increase the rate of volume change to determine the battery internal process performance and the extent of deterioration to the failure of the battery and can be an early warning of security problems. The charge and discharge process for the implementation of expense controls and protection of termination of discharge voltage, temperature protection, protection against overcurrent, while the charging process by the cell voltage below represent the monomer flow balanced approach so that the series voltage at the battery terminals of each cell line alone, in order to avoid the state of each cell only difference battery life impact. Sony VGP-BPS10A Sony VGP-BPS10A/B

 

The system of 10 batteries 20Ah in test series, using 5A load at constant current 2A represent a balanced circulation system form a balanced flow of the effect is very obvious that no additional heat, but also to facilitate the ‘energy saving control.

 

Many factors affect the resistance to change, especially the resistance of the internal battery within the whole life cycle variation of the study requires a lot of experiments, the experimental program under way, including the rejection a stack of a simulated operating conditions throughout the life of the testing process.

 

5 Conclusion

 

Before each charge, during and after the load sensing and recording the process of collecting the amount of battery voltage, current, resistance, battery temperature, charging time and other parameters to calculate the amount of each parameter change and changes in rates and with the original presets to compare accurately to assess the ongoing performance of the battery, the size of the warning of possible security problems when using battery Rechargeable batteries provide high security protection. With electric vehicles, for example, even if there is warning battery safety, the driver has at least a few days of free time to deal with maintenance, rather than forced to disconnect immediately.

 

The process of charging the lower voltage batteries make up the monomer flow equalization charge, reducing the difference between the status of each single battery to improve battery life, while avoiding the burden of balancing the balance of the circuit During the heating problem significantly improve the ability to balance, high capacity, high power applications the battery has a significant effect. Inspiron 640m battery Inspiron E1405 battery

 

A complete record of the process of charging the battery charging process for each volume, voltage, current, resistance, battery temperature, charging time and other parameters, which records the rechargeable electrical parameters of the life cycle process of change for Battery Failure Analysis Group provides a database.