LI-ION BATTERY HAVING IMPROVED SAFETY AGAINST COMBUSTION
The present invention provides a process for modifying a Li-ion battery having a region of electrochemical activity and an enclosure therefor, said process comprising forming at least one chamber within said enclosure separate from said region of electrochemical activity, positioning combustion abat...
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| creator | KOUNTZ, Dennis J ENGLISH, Alan D BROTHERS, Paul Douglas VISIOLI, Donna Lynn HOOVER, James R |
| description | The present invention provides a process for modifying a Li-ion battery having a region of electrochemical activity and an enclosure therefor, said process comprising forming at least one chamber within said enclosure separate from said region of electrochemical activity, positioning combustion abatement agent within said chamber, whereby said combustion abatement agent is not in contact with said region of electrochemical activity, said chamber being pressure or heat sensitive, whereby when said region of electrochemical activity overheats, said chamber is breached, allowing said combustion abatement agent to contact said region of electrochemical activity to abate combustion of said region of electrochemical activity, wherein exemplary of combustion abatement agent is the composition comprising liquid fluoropolyether and exemplary of the of the chamber exhibiting pressure or heat sensitivity is to include a low melting, non-flammable polymer such as polyvinyl alcohol in the material of construction of the chamber. |
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| subjects | BASIC ELECTRIC ELEMENTS ELECTRICITY PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY |
| title | LI-ION BATTERY HAVING IMPROVED SAFETY AGAINST COMBUSTION |
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