Panitch Schwarze Belisario & Nadel LLP
Non-aqueous electrolytic secondary battery
A non-aqueous electrolyte secondary battery comprising: an electrode plate assembly; a non-aqueous electrolyte; and an outer jacket accommodating the electrode plate assembly and the non-aqueous electrolyte therein, the electrode plate assembly comprising a positive electrode plate, a negative electrode plate and a separator interposed between the positive electrode plate and the negative electrode plate, the separator comprising a polyolefin resin, wherein (1) the separator comprises at least one layer comprising a polypropylene resin, (2) the layer comprising a polypropylene resin contains an antioxidant with a melting point of 60° C. or higher, and (3) the layer comprising a polypropylene resin and the positive electrode are in contact with one another.
Matsushita Electric Industrial Co., Ltd.
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Jun Masaki Yutaka Masaya Kiyomi Hiroshi Hideki Norihiro
Nunome Kitagawa Kawatate Sugafuji Kato Matsuno Sano Yamamoto