abstract |
The present invention provides a lithium secondary battery excellent in heat resistance. This lithium secondary battery includes a positive electrode plate as a lithium composite oxide sintered body plate, a negative electrode containing carbon and styrene-butadiene rubber (SBR), and a negative electrode containing γ-butyrolactone (GBL) or γ- An electrolyte containing lithium fluoroborate (LiBF 4 ) in a non-aqueous solvent of butyrolactone (GBL) and ethylene carbonate (EC). |