Lithium-ion batteries will cause permanent damage to positive and negative

Lithium-ion batteries will cause permanent damage to positive and negative

Welcome to a laptop battery specialist of the Toshiba Laptop Battery First post by: www.batterystores.ca Battery in use after a period of time will be aging, specific performance is a larger resistance, the voltage across the charging time of rising quite rapidly, so it will be easily determined for the charge control circuit has been filled, the capacity has naturally decreased . As the larger battery internal resistance, discharge voltage drop, high speed, the system can easily mistaken for a voltage not enough, power is low (in fact there is not power up). Obviously, the battery aging process is a vicious circle, the discovery of battery time out faster than it should exercise a little longer, otherwise, sooner or later finished. Battery calibration is effective against aging batteries, in general, each brand will have a dedicated laptop battery calibration software. IBM had a pretty good point discharge software, but also applies to some other brands of notebooks. We only have on several occasions rechargeable notebook battery can be part of the activated rejuvenate. To download the software and the implementation of discharge, the system will be prompted to create installation disks. Use the installation disk boot PCDOS, unplug the AC power supply prompted the discharge control software will automatically discharge. When all the notebook will automatically shut down after, then you can connect AC power to charge, time control in 12 hours, repeatedly 2 ~ 3 times.We love machine maintenance lithium how should be right? This problem has plagued many loyal laptop users, including me. In access to some information, the recent opportunity to consult a professional in a electrochemical PhD and a well-known domestic battery such as Toshiba PA3399U-1BRS Battery , deputy director of the Institute. Now a number of recently acquired knowledge and experience in writing, to satisfy our readers.Although the chemical reaction principle is very simple, but in the actual industrial production, the practical problems need to be considered much more: cathode material additives required to maintain the activity of several charge and discharge, anode material required to design the molecular structure level accommodate more lithium-ion; fill in the electrolyte between the positive and negative, in addition to stability, but also has good electrical conductivity and reduce the battery internal resistance.Although the lithium-ion batteries are nickel-cadmium batteries few memory effect, memory effect is the principle of crystallization in lithium battery will not produce such a reaction, almost. However, lithium-ion battery capacity after repeated charge and discharge will continue to decline, its causes are complex and diverse. Mainly positive and negative changes in the material itself, from the molecular level, the positive and negative electrodes of lithium ion on the hole to accommodate the structure will gradually collapse, blocking; from a chemical point of view, is the active anode material is passive, there's the other side to form a stable compounds. Cathode material physics will appear gradually falling off, etc. In short, can ultimately reduce the battery charge and discharge process of free movement in the lithium-ion number.Over-charging and over-discharge, lithium-ion batteries will cause permanent damage to positive and negative, from the molecular level, intuitive understanding, excessive discharge of carbon anode will lead to excessive release of lithium ions make their lamellar structure is collapsed, over- will charge too much into the negative electrode of lithium ion hard carbon structure to go, and make some lithium-ion can no longer be released. This is also why the lithium-ion batteries are usually equipped with charge-discharge control circuit reasons.Not suitable for the temperature, will lead to an internal lithium-ion batteries produce other chemical reactions of compounds that we do not want to see, so many of the lithium ion battery between the positive and negative temperature with protective membrane or electrolyte additives. The battery temperature to a certain situation, composite membrane electrolyte membrane hole closed or degeneration, cell resistance increases until the open circuit, the battery will not heat up, to ensure the battery temperature is normal.The deep charge and discharge can improve the practical capacity of lithium-ion batteries it? Experts clearly told me that this is meaningless. They even said that the so-called three full charge up before using the "activation" in their knowledge of where the two doctors, also need to figure out what this. But why so many people of deep charge and discharge capacity after the Battery Information in labeling will change it? Will be mentioned later.Activation of the new batteryMyths 1: The new battery should charge and discharge means to activate battery performance.Truth: The statement is not exactly a rumor. The hands of the battery from the factory to the user that there is a time lag as short as one month or as long as six months. For longer battery time difference, the electrode materials will be passive, so the initial use of the battery manufacturers recommend the best for 3 to 5 times fully charge and discharge process in order to eliminate electrode materials passivation, to reach maximum capacity. However, manufacturers often do not pay attention to remind consumers mentioned here should not be fully charge and discharge depth of discharge, but should be controlled at 5% to 8% can. Otherwise, a new battery is likely to scrap.1. No need to ensure the release is finished each time a re-charge;2. A period of time can do under the control of a protection circuit to correct the deep charge battery discharge statistics, but it will not improve your battery's actual capacity.3. A long time without the battery, should be placed on a cool place to weaken its own internal passive reaction speed.4. The protection circuit is also able to monitor the battery self-discharge, long-term without the battery, should be pumped into the power to prevent the battery self-discharge in storage in the discharge of excessive lead to excessive damage.In fact, the battery is not too much to take into account the use of attention, in other words is taken into account is not much use. How many times a cell can use, perhaps more different from the battery to cause the individual differences, rather than use. Select has a good reputation in the notebook PC brand, is undoubtedly the future protection of battery life is one long. http://www.articlesbase.com/laptops-articles/lithium-ion-batteries-will-cause-permanent-damage-to-positive-and-negative-4436225.html

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