The Classification of External Battery

According to the different of battery cells, we can divided externalbattery into two species, one is the original lithium batteries, another one is polymer batteries. There are big difference in the material composition and shape between them.

1. Original lithium batteries

The advantage of ordinary lithium cell battery, Because of the relatively long development time, the price of the battery is very low. The disadvantage are, there are many waste refurbished battery, because of the process causes, the problem rate and failure rate are high during producing. Institutional, heavy weight, short life and may cause an explosion. The mainstream mobile power phasing out of such cells. In the coming days, the ordinary lithium batteries will gradually withdraw from the stage of history.

2. Polymer batteries

According to the Electrolyte materials used in lithium-ion battery, lithium ion battery can be divided into liquid lithium-ion battery (abbreviation LIB) and polymer lithium ion battery (abbreviation LIP), the Positive and negative materials used in polymer lithium-ion batteries is the same as used in the liquid lithium-ion battery, Cathode material can be divided into lithium cobalt oxide, lithium manganese oxide, ternary materials and lithium iron phosphate materials, Extremely negative is graphite. The battery’s working Principle also consistent, The main difference between them is the electrolytes different, the liquid lithium ion battery use the liquid electrolyte, and lithium ion polymer batteries use the solid polymer electrolyte instead, Such polymers can be a "solid state", can also be "colloidal state", most of them use the polymer gel electrolyte present.

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