DEVICE AND METHOD FOR WARMING LITHIUM BATTERIES

摘要

A direct current powered heating jacket utilizing a carbon fiber heating element that, when enveloping a lithium-ion battery or battery pack, will quickly warm the battery or battery pack in a cold environment to its optimal operating temperature, thereby allowing the maximum discharge rate of the battery pack, is disclosed. Specifically, a system comprising one or more layers of carbon fiber heating elements within a flexible "battery jacket" that can be placed on or wrapped around a lithium-ion battery or battery pack is disclosed. The battery jacket may be connected to a direct current power source and can be controlled by a central processing unit ("CPU"). When the lithium-ion battery itself is used as the DC power source, the battery becomes "self-warming" and the optimal operating temperature of the battery can be maintained without an external DC power source.