Low and High Temperature Lithium ion Battery Performance

Abstract:

A Low and High Temperature Lithium ion Battery cell which can work at -40°C or 85°C. It can make Low Temperature Lithium ion Battery Pack with this cell.

Most common lithium ion battery working temperature is between -20°C to high 60°C, and usually battery charge/discharge performance testings are conducted under room temperature @25°C.

Most common lithium ion battery’s capacity will reduce a lot at -20°C and will face a high temperature rise problem when working @60°C.

Low and high temperature lithium ion battery basic information

Below is the basic informationi of a 18650 2600mAh low and high temperature cell information, we also have a 2900mah cell for option.

It can charge @-20°C to 60°C (most common lithium battery can only charge @0°C to 25°C)

It can discharge @-40°C to 85°C (most common lithium battery can only discharge @-20°C to 60°C)

Low and High Temperature Lithium ion Battery Basic infomation

Low and high temperature lithium ion battery performance

It use a 0.2C dicharge current to test in various temperatures, and can still remain around 87%@0°C, around 74% capacity @-20°C, and around 56% @-40°C.

Higher temperature usually can have higher capacity, the capacity remain around 104% @60°C, around 103% @60°C.

Low and High Temperature Lithium ion Battery discharge performance

Low and high temperature lithium ion battery discharge rate at RT

The rated max continuous discharge current is 10A, but we usually advise to discharge witin 3.9A( 3.9A=2.6Ah*1.5C discharge rate). RT is the abbreviation of Room Temperature, the room temperature usually indicates 20-25°C.

Low and high temperature lithium ion battery discharge rate at room temperature

Low and high temperature lithium ion battery applications

With it’s bravo low temperature working performane, it can used for outdoor camera, testing meters, power supply …etc.

With it’s bravo high temmperature working performance, it can used for outdoor singal power supply..etc.

We advise to make small battery pack with lower discharge current, like 3.7V 5.2Ah battery within 1A discharge, 7.4V 2.6Ah battery within 1A discharge, 12V 5.2Ah battery within 1A discharge…etc.

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