Patent ID: 9350057
Filing Date: 2016-05-24
CPC Classification: H01M,Y02E,Y02P

Claim Text:
1. A battery pack injected with a phase change material, comprising a plurality of battery modules including a plurality of stacked battery cells and a pack case housing the plurality of battery modules, the battery pack being hermetically sealed and injected with the phase change material; wherein the phase change material is hydrofluoroether, the pack case is vacuumed and the pressure in the pack case is set in a pressure range from about −0.09 MPa to about −0.01 MPa at which the hydrofluoroether in the pack case undergoes a phase change when the battery cells operate, heat generated by the battery cells is absorbed by the hydrofluoroether when the hydrofluoroether undergoes the phase change and the heat is then dissipated away by the pack case.