Digital battery

Portable using a period of time longer prone to the problem of declining capacity of the battery, leading to the life of the battery cell shortened. This is essentially internal batteries or battery failure caused by aging. In severe cases, the use of calibration procedures of the Laptop battery or the battery charge and discharge are repeated to solve the problem. For this issue, there are many fans that the shell of the battery opens, find and replace the batteries may be unable to solve the problem. The current situation is really the case?

Replacement batteries must be cautious

Since the laptop is now a greater use of lithium-ion batteries, while the life of lithium-ion battery is essentially constant, and its battery life of only 500 to 800 times. Therefore, if often use battery-powered laptop, later, 1 ~ 2 years, the battery is easy to achieve because of the internal life of the batteries fail. As we open the battery when the battery test is represented in one or two batteries damaged. However, due to other cells that is about it, even if you replace the batteries fail, the battery can be quickly returned to normal, will soon fail for other batteries and battery life can be full used again.

Then, all of the laptop Dell Latitude D820 battery to replace all the internal capacity to solve the problem? In fact, it’s hard. Because in the original cell, after its internal batteries game specifically, if the battery capacity, the terminal voltage and internal resistance of the consistency property. We bought on the market in batteries, and have not been tested and matching, we can not for the amateur conditions, combined batteries, so its capacity, internal resistance and other parameters vary inevitable. In the internal battery, batteries are in series between them after the load (in most notebook battery, is 8 cells were divided into two groups, four in series and then parallel to form a battery pack) due to the battery charging current from which the smaller capacity batteries will be the first total power, but not enough because the other battery, the battery terminal voltage can not create voltage load circuit will continue to charge the battery pack. In this way, the batteries supply the original track will be overloaded. To reduce the charge time, laptop charging circuit load current is very high, so will charge batteries when the tremendous heat, so that the batteries inside the liquid temperature increases, pressure increased, the internal electrolyte easily dry up or overflow, leading to a further decline in cell capacity, there is a swelling or even an explosion. The total capacity of the battery capacity by the decisions that smaller batteries, so that would create a vicious circle, after repeated charge-discharge capacity of the whole battery would be considerably reduced, which leads the ‘Time use laptop.

At the same time, a number of laptop batteries to prevent unauthorized users from opening to replace the batteries, has a microchip and an anti-line off Cape. As the hull of the hp 417066-001 battery or batteries to open the line of the battery Remove the card and smart circuit protection will cease production of the battery. Even if we re-take the battery circuit of the battery and close the battery chamber, its smart protection is still not recovering. In this way, the battery will not work out. We need to re-reset the smart chip to solve this problem, but a condition amateur can not reset the chip to chip. Therefore, replace the batteries when the battery can cause permanent damage.

So how can we solve the battery problem? The best way of course, is to buy a new battery of origin, but now a new original equipment batteries for hundreds or even thousands of dollars, this cost is too high, higher than many consumers can afford. However, there are a number of professional station laptops repair, equipment and technology are good, but there are repair stations and manufacturers of batteries existence of long-term cooperative relations, the VGP-BPS8 battery can be made corresponding precision. This would maintain the quality. In these places for the price of batteries is about 300 yuan, although it compares to replace the batteries of their own at higher prices, but it can protect the long-term use of the battery. In addition, some service stations are also carried out repairs for six months before the battery warranty. We use these six months, while there are a hundred times or two to ensure the battery charge and discharge, and battery capacity and stability during this period, then after the battery is about to enter a stable period is not easily damaged.

The trick to keep the battery

In any case, replace the batteries do not require us to pay a little more, so we must be aware in their daily use to maintain the battery to extend battery life. To protect the battery, first reduce the number of battery, which means it is electricity to the extent possible not to use the toshiba PA3399U-2BAS battery. This can reduce the number of loading and unloading of the battery to extend battery life. Although this use to a few drawbacks, but think of you each time you use the battery, it must pay two dollars, be prudent in the summer bar.

Battery internal structure diagram

Calibration procedures battery can extend the battery life has been a debated issue. Support of people think that the calibration of the battery can eliminate the memory effect of batteries to extend battery life. Opponents argued that now use lithium-ion batteries have no memory effect, if the correction procedures will only increase the number of loading and unloading of the battery and shorten the life of battery. In fact, two types of agreement are incomplete. While the reduced lithium-ion battery memory effect, but the memory effect still exists. Calibrating the battery may actually reduce the memory effect, but this is not the most important function of calibrating the battery main procedure is to establish the battery and control circuit, in order to optimize the control circuit can correctly identify the capacity of the battery to avoid overcharging or over-rejection phenomenon. At the same time, you can also ensure that the apple A1079 battery is exhausted before the system closed to protect data security. However, frequent use of calibration procedures of the battery would indeed increase the battery charge and discharge time. Therefore, we once every three months or if the calibration procedure of the drums on it. We use energy from the battery when the laptop or adapter to charge the battery, disconnect the battery cell. Regardless of the battery is charged or discharged state, the current is very important if we try to connect the battery, it is easy to produce electrical sparks, not only will the removal of contact, the impact of the current May also cause the board of the battery or system portable charging circuit damage.

In addition, many people there are some misconceptions about the use of the battery. Such as “newly purchased batteries need to go through a few charge-discharges to enable,” “laptop battery needs to full output:” In fact, Li-ion battery memory effect with the reduction and improving battery protection circuit internally. These factors affect the capacity of the battery was very low, and we only run the calibration procedures of battery on a regular basis will be able to eliminate the impact of these Operations on the stack, we must not wait for that, and that more carefully your laptop, after all, the battery is presented useful.

China North Vehicle Research of major projects of the National Institute of 863 electric vehicles Power Battery Testing Center is the primary test vehicle battery power and authority certification for the state the means of control quality to guide the development of the basic battery of tests, but also at home and abroad to carry out the relevant communication window. At present, China’s battery powers the vehicle in the development and production, what problems still exist? Their technical standards? To solve these problems, this reporter recently interviewed Prince, director of the Center for the winter.

“China Automotive News” At present, China’s battery powers the vehicle certification and control, how are we going?

Prince of winter: Since 2006, the National Directorate of Vehicle Standards announces new energy battery test in effect, the power of the electric vehicle VGP-BPS13B/B battery before testing the ad should be mandatory. Initially, only a very small output of the battery through certification, is currently about 30% of the production of the product has reached a certain standard. China North Vehicle Research Institute Power Battery Testing Center is the primary test vehicle battery power and authority certification, we passed by the State based on a car battery, battery modules and national standards Project 863 large energy batteries and super capacitors testing standards and all sorts of individual cells, modules, battery performance and safety tests and full tests.

Development of new energy vehicles for the safety of battery power and life cycle proposed higher requirements, certification and testing, as the battery from the battery company in the industry threshold of new energy, but this does not mean that by sensing the battery can be well applied to electrical car. Because electric vehicles are electric (EV), fuel and electricity and gas, hybrid electric (HEV, PHEV) and the model for many other performance requirements of the battery varies greatly needed features power to the vehicle VGP-BPS10B battery to assess specific pairing.

For the power of the battery of safety tests of performance include acupuncture, overloading, excessive discharge, squeeze, drop, high temperature, short circuit test items, etc. 7. Adopted into a single cell basis, we also test the security module will consist of five cells in the module series of battery tests. Due to cost constraints, at present there are very few companies test the safety of the battery. Testing a cost of “battery pack of 100 thousand to 50 million, while the entire group of test vehicles electric bus battery pack often requires the cost of several million dollars, we now have the batteries used in power real safety data of the electric vehicle, and compared with test data there will be some deviations.

“China Automotive News” In the testing and certification, you think how the safety performance of batteries power of China? What problems still exist?

Prince of winter: On the security side, China’s leading power vehicle overloading of the VGP-BPS10A battery over-discharge problem is not serious, but more problematic is the short-circuit, acupuncture and squeeze. While the battery life for companies looking to invest substantial funding, but most production of the batteries in these three cases is difficult to ensure. Although acupuncture, short circuit, the compression is borderline, but not underestimate the potential danger. In case of spillage, accident, the implementation of the rescue process, the presence of the battery power of these problems often causes secondary damage.

This year, the state-led industrial development of new energy, promote the advancement of electric vehicle technology, however, electric vehicles launched around the relatively blinder. Vehicle battery charge and discharge process is very complicated and complex, motor cars and the environment, often found in the wind, frost, rain, snow and other inclement weather, the battery safety, consistency, stability , demanding. Battery companies not only need to have a strong R & D team, but also a large number of trial experiments, to produce a driving force to meet the application requirements. Currently, Chinese companies generally have no experience of producing batteries supply, equipment manufacturing, sensors, connectors, positive and negative material, divide not advanced enough, there will be a great risk production blind.

“China Automotive News”: the last two years, China’s VGP-BPS8B battery production vehicle supply and sales, technical level and scale of development in what way?

Prince of winter: the use of point of view, China Ni-MH battery that lithium batteries perform better security, but the lithium battery a higher energy density and longevity. Currently, domestic companies producing lithium batteries more, especially lithium iron phosphate faster than any other battery development. There are many dynamic models of electric vehicles, different models of batteries, has raised one of the requirements of different applications.

Scale production and marketing standpoint, my car battery power are in the basic R & D, pilot phase, which has yet to reach mass production, it is not widely used in electric vehicles, short term, businesses in the battery pack is unlikely to achieve profitability.

“China Automotive News” with the advanced international level, the gap between the battery power of China is reflected in what areas?

Prince of Winter: First, the foreign power batteries using automated production methods, while internal essentially manual and semi-automatics are not likely capabilities of mass production, level of accuracy is not high. Degree of commercialization of view, China has the VGP-BPS10A/B battery power can be sold, while foreign sales of pre-existing motive power free. From the product structure, the foreign accent on the overall design and evaluation battery, including battery heat, energy management, standardization of connectors. In China, the focus of battery companies still in the material of the battery. In addition, foreign battery parameters of development, standardization, serialization functionality significantly, while the size of domestic products, the range varied from a heterogeneous disorder.

Second, China is relatively backward battery production facilities of electricity, many companies focus on the subject, ignoring the improvements of the manufacturing equipment. At present, China will depend mainly on the production of batteries and equipment imports expensive, which is our development of battery power vehicle is very unfavorable power batteries in mass production It should be equipment for advanced automation, the focus of advanced research.

Third, most independent research firms in China and battery development, funding is limited, can not solve the fundamental problems of battery technology is difficult to advance further. Lack of adequate communication between businesses, all want to know the circumstances of other people do not want to talk about their own experiences, there is widespread low-level study of the phenomenon of repetition. We must learn from Japan, to create a dynamic alliance in battery technology to promote technological development common to spend money on the razor’s edge.

Lithium battery storage devices ion energy on behalf of the development orientation of the spacecraft is the third generation storage device power spacecraft. It has a lightweight, small, no memory effect, to adjust to the temperature scale, etc., the main use of Ni-Cd, Ni-MH battery replacement. Lithium-ion batteries for the ratio of weight aerospace energy of 90 ~ 110Wh/kg compared to Ni-MH Laptop battery ~ 45 indicators 60Wh/kg have obvious advantages. However, the electrochemical properties of lithium-ion batteries that require charging process must be strictly controlled, therefore, to design a special circuit to monitor the management of lithium-ion battery ship loading process.

The lithium-Key-ion battery charger

Lithium-ion batteries replaced nickel-cadmium, Ni-MH battery can not be applied a “plug and play” approach, because the lithium-ion battery and Ni-Cd, Ni-MH battery has a very big difference: Lithium-overcharging ion is strictly prohibited. Therefore, we must combine the features of the design of new lithium-ion battery charging circuit for battery management. Lithium-ion battery circuit management charge of key points (with Ni-Cd, Ni-MH battery charge management circuitry main differences between points) is two main aspects: the mode of charging and load balanced.

In engineering applications, lithium-ion VGP-BPS10 battery monomer or from a single cell in parallel to form a battery module is held in tandem with the battery, it must take into account the process of charging the battery or a stack imbalance monomer unit, but as time passes, these imbalances will become increasingly serious, serious impact on battery life and reliability, equalization charge is also the key technologies for lithium - ion battery.

A constant voltage constant current - (TAPER) Charge Control Model

The introduction of nickel-cadmium, nickel-hydrogen battery power system by satellite, using essentially the current mode of constant load, when the curve reached VT, power electronics, pressure, the third electrode method command such as checkpoints to stop charging the completion of a charging process. Lithium battery ion control is not suitable for application of these methods, because the charge does not guarantee the lithium rechargeable ion batteries is always limited to the final pressure within limits, although the load is guaranteed final pressure is often pressure to reach the final load immediately after the termination of charging, lithium batteries, ion batteries to reach the final after fracturing must add about 30% of electricity. From the perspective of developing lithium-ion batteries for many years, a constant current - constant voltage charge command is the most common and most appropriate mode of load control. In this mode, the charger first lithium-ion batteries for charging at constant current when the VGP-BPS13 battery voltage is raised gradually when the battery voltage reaches the value set to a constant voltage charging, where the load current decreases approximately exponentially, so that kind of load, also known as TYPE-based load control. 

2 load-balanced technologies

Aerospace lithium-ion battery charging technology must be balanced, this view has been fully recognized at home and abroad. A balanced technology is primarily responsible for resolving the long-term single lithium-ion battery charging process in the electrochemical properties of bias and, therefore, the merits of a balanced pricing will take some time, capital and investments are made to be effectively checked.

Lithium-ion battery equalization charging civilians in the product has not yet received widespread attention and application, because the multi-cell section is only rarely applied in series, reliability, durability and non - not ask for much. Lithium-ion batteries in electric vehicle system, the single cell series of other sessions, has adopted a balanced charging technology, the general system of microcomputer control is used in a single cell on a shunt resistor on the application running well-off and control the amount of a single battery charge. Such methods to control the complexity, low efficiency, heat consumption of large, balanced for a long period in the early program of aerospace products in the transplantation of this approach, the technical personnel at home and abroad studying now even more perfect.

The importance of a balanced load is to make lithium-ion battery voltage difference monomer remain in the expected range, thus ensuring the life of every cell in the satellite during the shocks are not subjected to stress too much damage. Without a balanced control costs, with the increase in charge-discharge cycle, the voltage of a single cell differentiated gradually.

Under normal circumstances, when the lithium-ion battery voltage difference load monomer within 50mV is perfectly acceptable. We believe that the main reason for discrepancies caused by an effective single battery charge, self-discharge rate is different. On the other hand, single cell in the circuit measuring the current consumption should also seriously consider the effects, sometimes consumed circuit current measurement has reached the size of the VGP-BPS11 battery discharge current. Experience life Lithium-Ion battery make, and some technical staff to reflect the first round of the battery is often only the first or last is damaged; it is often consumed as a result of the measurement circuit.

Car battery is important, its function is to provide an electric starter, the engine starting or operating at low speed for the ignition system of motor and other electrical equipment. High-speed operation when the engine when the generator enough, the battery can store excess energy. Unfortunately, it is generally ignored by most people. I do not know the proper maintenance of batteries to keep it plenty of power, is an important part of vehicle maintenance. The following will introduce the conservation of car battery connected to knowledge and common sense, to help you better understands the use and maintenance of the battery to extend battery life.

Car battery car battery works the vast majority of lead acid batteries. In simple terms, it is a chemical energy into electrical energy capable of electrochemical devices. Lead acid battery in the positive and negative plates, bulkheads, shell, etc. electrolyte and wiring trailer hitch and the discharge of chemical reactions depend on the active positive plate (lead dioxide PbO2) and the negative active material (sponge of pure lead, Pb) in the electrolyte (sulfuric acid composition of H2SO4 and H2O water) and as a result. A standard 12V lead-acid hp Pavilion DV1000 battery contains six modules, each of the power of electricity is about 2V (one for each power supply has a positive and negative column: column is entered the positive sign “+”, dark brown negative column when a “-” sign in pale gray).

Traditional batteries will occur in the electrolyte is in decline is because the frame plate door with traditional batteries lead alloy of antimony, antimony will pollute the negative plate of pure lead sponge, weakened after the battery is fully charged in a Counter electromotive force resulting from the decomposition of excess water, a large number of oxygen and hydrogen, respectively, escaped from the positive plate and negative, so the reduction electrolyte.

Without maintenance (maintenance free) batteries into the design principles and traditions of the Dell Inspiron 9400 battery on a coherent strategy, the use of thicker plate materials, important difference is that the plate is consistent with lead calcium alloy. In the electrolysis reaction, it can reduce the flow of excessive burden, reduce the rate of vaporization of liquid, thus reducing the loss of electrolyte, compared to prolong battery life.

Discharge and load

In the year (discharge) process dioxide very edge of lead (positive), the spongy lead (negative), and sulfuric acid electrolyte chemical reaction occurs to produce the discharge of lead sulfate (PbSO 4) and d water (H2O), positive and negative plate the difference between reduced. Because the battery voltage depends on different electrode materials and electrolyte concentration, so the reaction after discharge, the battery loses power. Charging process (charge) and discharge process to the contrary. Current in the generator under the action of sulphate of lead and water lead dioxide (positive), the spongy lead (negative) and sulfuric acid, plates, electrolyte concentration restored, the battery of energy.

Caution

1 to start the car every time startup should not exceed 3-5 seconds after starting interval of at least 10 seconds.

2 vehicles often short driving distance open-window open will result in a prolonged state of toshiba PA3395U-1BRS battery charge less to shorten the lifespan. On the highway driving at a constant rate of 20? 30 minutes, may give enough time to recharge the battery.

3, driving a day before leaving the car, check and ensure that all lights and other electrical appliances (such as radios, CD) has been closed. Because it may drain your battery.

4, if the battery runs out, to ask the fire (Jump-Start, also known as tie-lines) to begin immediately possible a constant speed (such as highway speed) drive at least 20? 30 minutes to fully charge the battery.

5, in the full discharge of the battery case, ask the fire may be unable to help you start your car. In this case, you must use a dedicated battery charger for slow charging.

6, where cars are not long-term investment should first fully charge the car. At the same time every month, launched his car, operation at medium speed for about 20 minutes. Otherwise, place too long, it would be difficult to start.

7 to understand the life of the VGP-BPS13/S battery. Using more than 4 years, proposed to replace

In June 2009, a new attracted our attention: Sony Corporation has announced the six models of mercury-free alkaline button batteries (LR) of the marketing plan, which means that the Sony-mercury button batteries are fully free market.

In fact, as early as eight years ago, China’s New Leader Battery Co., Ltd. Business battery had been a breakthrough ahead of other countries that have plagued the world’s problems, and was the first conducted a large-scale production.

The mercury batteries inside a great harm to humanity, because the Laptop battery inside the mercury on the brain and nervous system toxin interfere significantly with normal nerves, the exposure fetus or infant to high doses of mercury can cause mental retardation, cerebral palsy, hearing impairment or loss of vision and so on. Even exposure to low doses of mercury, may also affect the healthy development of children, it may enable them to attract attention, action coordination, language skills, visuospatial, and memory problems text. For adults, a chronic mercury poisoning can cause memory decline, seizures, vision loss, and the hands, feet means paralysis, and fertility and the devastating effects of blood pressure. Increasing evidence shows that exposure to mercury may increase heart disease.

And because the VGP-BPS8 battery of a high frequency of use and universality, making the threat of mercury-containing batteries become more evident. It is reported that a New Zealand-style micro-mercury alkaline batteries can be contaminated by water is 600,000 liters, equivalent to the amount of water, the life of a person.

In other countries, more than a decade in Japan and the United States, Europe and other well known manufacturers of mercury-free batteries, mercury free button cell surprised by a large number of studies. However, there are technical problems are not resolved, there is no one company can successfully produce mercury-free alkaline button cell, resulting in the global market has been the use of mercury-containing button cell alkaline. Coin 1 billion each year by the production and use, so that China and the rest of the world, people still face the risk of mercury exposure.

While all research stopped, when this problem by breaking the new company-Qing Li Dade. In this regard, the China Battery Industry Association and the American groups of the environment have given a high degree of recognition and evaluation as the cause of the world’s great contribution to protecting the environment. With the invention of this technology, China has become the world’s first mercury in Dell XPS M1210 battery-free buttons cracking problems of the country.

It is understood that the reasons for mercury button batteries, mercury is used to block cream zinc anode of the battery with pieces of metal anode contact, because these contacts produce hydrogen gas, leading to cell swelling deformation, leak or even explosion. Early mercury button cell battery problem leak also exists, which affects performance, battery life and use of the most fatal flaw, but in the late 70s of last century, mercury leakage problems of button cells, they were forwarded to the original use of punch made with stainless steel plate and then nickel plated or gold, “the negative coverage, replaced by a” nickel, stainless steel, copper laminated composite formed the “Group of metal composite,” made negative coverage, and other improvements related to actually be controlled.

The purpose of this patented invention is to maintain the original mercury (eg mercury) batteries buttons fight against the performance of the leak itself based on mercury free button batteries.

The patent on October 19, 2001 by the National Office of Intellectual Property in the patent application, and October 2, 2002 announcement was authorized by the patent No. 01234722.1.

With the use of mercury-containing button cell and the increasing volume of waste, waste batteries, mercury pollution of the environment is becoming more serious. Thus, the needs of environmental protection, button cell hp F2024A battery industry manufacturing has been eager to set the battery in the mercury problem. In this patent application, Sony, Toshiba, Hitachi, Panasonic, Seiko, etc. at the button battery R & D and manufacturing industry, the leading position among Japanese companies, are mercury free button batteries for solve the problem for a variety of attempts and efforts to put forward all kinds of technological solutions. All these technical programs are committed to addressing mercury free leakage caused by the new problem, but failed to respond effectively to mercury free technology and anti-leakage effect of the two. Therefore, this patent application until a few days ago, button battery manufacturing may actually have not effectively address both mercury-free technology and the fight against the problem of leakage, and therefore mercury free button batteries are not even really realize the industrialization and market access.

This patent search and development through the use of unconventional ideas, successfully resolved the distress button industry of the manufacture of batteries for many years of technical problems. Before the date of this patent application, all addressing the issue of mercury-free technology for improving the program are in the existing technology base to mitigate the negative effects of escalation (eg, leaks) Speed commonly used by nickel - stainless steel - made from copper to remove three layers composite plate consisting of the CAP metal anodes based on a sophisticated system, all designed to improve the programs do not address the negative laminate cover any changes in the structure itself Similarly, even knowing that negative coverage multilayer structure forming the dislocation occurs and damage and coatings used in its suppression of the hydrogen produced by indium or tin, causing the VGP-BPS9 battery chamber of the tire and leakage is still a proposed complex of many other “plugs” of the program, but has not given regarding the availability covered by changing the negative multilayer structure to solve this problem, inspiring art.

And this patent is another way, its R & D and put aside the idea of super-normal manner by existing technology, made of three layers of sheet metal composite anode covered with a laminate structure, but directly by the metal plates and sheets stainless steel anode on-chip gold, silver, copper, tin, indium and other tests and found that the negative on the chip or indium tin -plated success in controlling cream zinc anode of the BATCL50L battery in contact with the film anode product gas as well as the improvement of raw materials and formulations on the successful production of a mercury-zinc free alkaline-manganese, zinc / silver manganese button-type batteries. Based on the discovery, the completion of the present utility model. ”

In this patent, the technical program to better the negative on the chip or indium tin plating and the elimination of a single pinhole surface prone to problems presented in this patent by plates of iron or stainless steel in negative film on the bare chip first nickel plating or copper, because of “a chemical nickel or copper, anode film battery,” and then in the chip of indium anode battery or tinning.

Using patented technology, the program has produced mercury free button batteries in 2002, which had been successful in achieving industrial production, the product of the mass market, buys the use of ‘well-known companies such as McDonald’s, and has received praise from environmental groups in the United States, reached a Sony, Toshiba, Hitachi, Panasonic and other multinational efforts for many years failed to achieve the technical objectives for protecting the ecological environment of mankind has made a significant contribution.