Journal
RUSSIAN JOURNAL OF ELECTROCHEMISTRY
Volume 57, Issue 10, Pages 1028-1036Publisher
PLEIADES PUBLISHING INC
DOI: 10.1134/S1023193521100050
Keywords
conducting polymers; cathode with the positive temperature coefficient; safe cathode for lithium-ion battery; battery protection from overcharge; battery protection from short-circuit
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Funding
- Russian Scientific Foundation [19-19-00175]
- Russian Science Foundation [19-19-00175] Funding Source: Russian Science Foundation
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The proposed polymer layer based on a nickel complex with salen-type ligand can switch resistance state when the potential threshold is exceeded, preventing side reactions during charging of lithium-ion batteries and effectively protecting the battery.
The polymer layer based on a nickel complex with salen-type ligand is proposed for protecting rechargeable lithium-ion batteries from overcharge. This polymer has a switchable resistance and can pass into the insulator state when the threshold potential is exceeded. This allows avoiding the development of side processes such as electrolyte decomposition on the cathode. The effect of the polymer layer was tested on model systems and on prototypes of lithium-ion batteries.
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