Digital battery

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.