Westerman, Hattori, Daniels & Adrian, LLP
Square secondary battery and method of manufacturing same
To provide a square secondary battery with a high reliability.A square secondary battery (20) including an electrode body (3) having a positive electrode plate and a negative electrode plate, a square outer package (1) that includes an opening and that houses the electrode body (3), and a sealing plate (2) that seals the opening of the square outer package (1), in which an inner side insulating member (12) serving as a first insulating member is disposed between the sealing plate (2) and a negative electrode collector member (8) and is fixed to the sealing plate (2), and in which a second insulating member (80) disposed between the sealing plate (2) and the electrode body (3) is connected to the inner side insulating member (12) serving as the first insulating member.
SANYO Electric Co., Ltd.
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Hiroyuki Ryoichi
Yamada Wakimoto