Lithium secondary battery and cathode composition therefor

Details Lithium secondary battery and cathode composition therefor Lithium secondary battery and cathode composition therefor

H - Electricity

01

M

H01M 10/24 (2006.01) H01M 4/24 (2006.01) H01M 4/62 (2006.01) H01M 10/42 (2006.01) H01M 6/10 (2006.01) H01M 6/16 (2006.01) H01M 10/40 (2006.01)

Patent

CA 2243196

A lithium secondary battery includes a cathode which can be dischargeably charged with lithium ions, an anode made of lithium metal, a lithium alloy or any other anode material which can be releasably doped with lithium ions, an electrolyte which allows migration of lithium ions between both electrodes, and an endothermic substance which undergoes an endothermic reaction upon a temperature rise of the battery for preventing excessive heat generation. Typically, the endothermic substance is a metal carbonate such as magnesium carbonate, cobalt (II) carbonate, silver carbonate, cadmium carbonate or sodium hydrogencarbonate.

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