发明申请
US20110195298A1 STACKED SECONDARY BATTERY 审中-公开
堆叠二次电池

STACKED SECONDARY BATTERY
摘要:
A stacked secondary battery having desirable characteristics against overcharging is provided.In the stacked secondary battery, either of a planar positive electrode or a planar negative electrode is contained in a pouch-shaped separator oriented such that the direction in which a positive lead terminal or a negative lead terminal is drawn out is aligned with a machine direction of the separator; a synthetic resin film is applied to the pouch-shaped separator across an edge of a joint area on both sides of the separator, the synthetic resin film having an adhesion strength higher than the stress caused by thermal contraction of the separator and having a softening point higher than that of the separator; and the positive electrode or the negative electrode that is contained in the pouch-shaped separator is stacked with a counter electrode that is not contained in the separator in an opposed manner to form a stacked battery element, which in turn is sealed in a film-like casing.
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