LithiumBatteryCharacteristics


Lithium-ion/polymer rechargeable batteries, which have been broadly used right now, have distinguished properties, however are very delicate and have to be used with extreme care. Improper use of Li-ion batteries will result in catastrophic consequences. The incidences of burning and explosions of Li-ion batteries have typically been heard. Carefully understanding their properties and adopting a proper battery management methodology is most important for making good use of Li-ion batteries.

Characteristics of Lithium Battery

It may not be simple to have a comprehensive understanding of one factor, as a result of totally different points of view could lead to completely different final understandings. A few but important perspectives, which may affect the charge methods, will be taken to analyze the properties of Li-ion/polymer batteries. The following diagram describes the relationship between the cell capacity and the cycle life with varied Li-ion battery cost voltages with the cell capability rated around 950mAH. Consult with China Lithium Ion golf cart battery factory to acquire your required battery.

In the identical way, it may also be discovered that Li-ion/polymer batteries are neither suitable for very high charge currents, nor appropriate for being deeply discharged. Any extreme battery behaviors will bring a detrimental effect on cell capability and cycle life. Balance is crucial in utilizing Li-ion/polymer batteries, which implies that all of the components have to be kept in balance to ensure successful usage.

Temperature Impact On Battery Environment also has super influences on Li-ion/polymer batteries. In reality, temperature has the best impact. The following diagram reveals how temperature might affect the battery characteristics.

At larger temperatures, Li-ion/polymer battery capacity will increase, so does cost voltage. When temperature decreases, particularly at very low temperatures, electrical energy can neither be discharged from, nor charged into batteries, so it is seen that charge voltage is decreased considerably and cell capability is reduced drastically.

With all of the knowledge of these properties, the strategy in managing Li-ion/polymer batteries may be readily determined.

Protection of Li-Ion/Polymer Batteries

The first step to make the most of Li-ion/polymer batteries is to verify they're under protection: from over-cost or over-discharge. Although there may be other protections, the protection circuit will function the last word protector for Li-ion/polymer batteries. What the safety circuit covers are over-voltage protection, over-current protection and under-voltage protection, where over-current protection is bi-directional, i.e. for overcharge and over-discharge. The following diagram, from the RT9545 datasheet, is the applying circuit of the Li-ion battery protector. China custom ev lithium ion battery factory presents a customized design of a long lasting lithium battery.

Charging Character if Lithium Battery

Recharge stage actually consists of a continuing current stage and a continuing voltage stage. During a recharge stage, the charger can compensate for the capacity drop, caused by self-discharge of the battery or different battery-connected loads. It is intended to maintain batteries as absolutely charged as potential in the intervening time the batteries (and the system powered by them) are disconnected from chargers.

Reaction On Different Power Supply Under any circumstances, only when the exterior energy supply voltage is higher than the battery voltage, the current can circulate to charge the battery. Therefore, the output voltages of almost all energy adapters for charging are higher than the very best battery voltages. However, exterior power supplies can not cost batteries instantly, as a result of the current could also be uncontrollable. And this is why cost administration devices are essential.

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