Battery and method for producing the same
OwnerHideo Kasuga, Makoto Ochi +2inventors
InventorsHideo Kasuga, Makoto Ochi, Toshiyuki Kondo, Hiroshi Fukuda
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Abstract
A battery having: an exterior can; and an electrode body packed in the exterior can, the electrode body being formed in such a manner that a positive electrode plate and a negative electrode plate are wound into a spiral electrode shape through a separator, wherein an electrically insulating pressure sensitive adhesive tape is stuck to an end portion of the positive electrode plate and wound on the negative electrode plate at an outermost circumferential portion of the spiral electrode body to thereby fix the spiral electrode body.
Claims7
A battery comprising:
- an exterior can;
- and
- an electrode body packed in said exterior can, said electrode body being formed in a manner so that a positive electrode plate and a negative electrode plate are wound into a spiral shape through a separator;
- wherein an electrically insulating tape is stuck to said positive electrode plate and wound on an electrode plate group of said negative electrode plate at an outermost circumferential portion of said spiral electrode body to thereby fix said spiral electrode body.
A method of producing a cylindrical battery having an electrode body packed in an exterior can and formed in a manner so that a positive electrode plate and a negative electrode plate are wound into a spiral electrode shape through a separator, comprising the steps of:
- sticking an electrically insulating tape to said positive electrode plate;
- and
- winding said electrically insulating tape on an electrode plate group of said negative electrode plate at an outermost circumferential portion of said spiral electrode body to thereby fix said spiral electrode body.
Dependencies are inferred from the claim text.