18334676. GAS ANALYSIS SYSTEMS FOR BATTERY CELLS (GM GLOBAL TECHNOLOGY OPERATIONS LLC)

GAS ANALYSIS SYSTEMS FOR BATTERY CELLS

Organization Name

GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor(s)

Erik Damon Huemiller of Troy MI (US)

Thomas A. Yersak of Royal Oak MI (US)

James R. Salvador of East Lansing MI (US)

Dmitriy Bruder of Clinton Twp. MI (US)

Thaddeus Ezeh of Rochester Hills MI (US)

GAS ANALYSIS SYSTEMS FOR BATTERY CELLS

This abstract first appeared for US patent application 18334676 titled 'GAS ANALYSIS SYSTEMS FOR BATTERY CELLS

Original Abstract Submitted

A battery cell gas analysis system including a degas chamber, a vacuum pump in fluid communication with the degas chamber to remove air from the degas chamber, a venting port configured to selectively vent the degas chamber, a battery cell enclosed in the degas chamber, and a gas detector in fluid communication with the degas chamber. The gas detector is configured to detect, with gas species separation, at least one parameter of a gas released from the battery cell into the degas chamber, and the at least one parameter of the gas of the battery cell is indicative of a manufacturing quality of the battery cell. The system includes at least one valve coupled between the degas chamber and the gas detector to selectively control a flow of the gas of the battery cell to the gas detector.