Active thermal management and thermal runaway prevention for high energy density lithium ion battery packs

摘要

The present disclosure provides a system, method, and apparatus for battery thermal management. In one or more embodiments, the disclosed method involves sensing, with at least one temperature sensor, a temperature of at least one battery cell, where at least one battery cell is at least partially submerged within a liquid contained within a battery case. The method further involves comparing the temperature of at least one battery cell with a maximum threshold temperature, and commanding a cooling unit to be activated when at least one processor determines that the temperature of at least one battery cell is above the maximum threshold temperature. Further, the method involves circulating, by at least one pump, the liquid via tubing from the battery case to the cooling unit back to the battery case.

主权项

1. A system for battery thermal management, the system comprising:
a battery case; at least one battery cell, wherein the at least one battery cell is at least partially submerged within a liquid contained within the battery case; at least one pump to circulate the liquid via tubing from the battery case to a cooling unit back to the battery case, wherein the liquid is a phase change material (PCM); and a pressure relief valve connected to the battery case.