To provide a polymer battery which prevents deterioration of battery performance caused by gas accumulation in an interface between an electrode and an electrolyte layer.
In the polymer battery 10; a positive electrode 41 formed of a positive electrode collector 42 to which a positive electrode active material layer 43 is electrically connected, and a negative electrode 46 formed of a negative electrode collector 47 to which a negative electrode active material layer 48 is electrically connected, hold a polymer electrolyte layer 50 between the positive electrode active material layer 43 and the negative electrode active material layer 48. A gas diffusion layer 60 with holes for diffusing gas made from a material having electrical conductivity is disposed at least between the positive electrode collector 42 and the positive electrode active material layer 43, or between the negative electrode collector 47 and the negative electrode active material layer 48.
COPYRIGHT: (C)2006,JPO&NCIPI
Hideaki Horie
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Yasuo Nara
Etsuko Saito
Katsuyuki Utani
Toshifumi Fujii