To prevent the decomposition of an ion-conductive compound due to graphite particles.
A lithium polymer secondary battery includes a negative electrode containing graphite particles attached with amorphous carbon on the surface, an electrolyte layer, and a positive electrode, and the electrolyte layer is constituted by crosslinking either one of a negative electrode and a positive electrode inside which a precursor of an ion-conductive compound is previously constituted and a fibrous organic compound inside which a precursor of an ion-conductive compound is previously constituted, and the area of the fibrous organic compound is larger than that of each of the negative electrode and the positive electrode.
COPYRIGHT: (C)2010,JPO&INPIT
Takehito Mitate
Naoto Torata
Kazuo Yamada
Nishijima
Tsutomu Sada
Kazunari Takeda
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