CPC H01M 50/383 (2021.01) [H01M 10/058 (2013.01); H01M 10/0525 (2013.01); H01M 10/4235 (2013.01); H01M 50/103 (2021.01); H01M 50/119 (2021.01); H01M 50/143 (2021.01); H01M 50/30 (2021.01); H01M 50/3425 (2021.01); H01M 50/35 (2021.01)] | 26 Claims |
1. A process for forming a Li-ion battery having a region of electrochemical activity and an enclosure therefor, said process comprising:
forming a first chamber within said enclosure separate from said region of electrochemical activity;
providing a vent in said enclosure;
positioning said first chamber between said vent and said region of electrochemical activity; and
positioning a composition comprising at least one combustion abatement agent within said first chamber, wherein said at least one combustion abatement agent comprises liquid fluoropolyether, whereby said composition is not in contact with said region of electrochemical activity;
said first chamber being pressure and/or heat sensitive, whereby when said region of electrochemical activity overheats, said first chamber is breached, allowing said at least one combustion abatement agent to contact said region of electrochemical activity to abate combustion of said region of electrochemical activity, and said vent releases pressure upon said overheating.
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