Birch, Stewart, Kolasch & Birch
Coin type cell with lead terminals
 Short circuit between a lead terminal for a negative electrode and a positive electrode can of a coin type cell can be prevented by providing a protuberance for preventing short circuit on a part of the lead terminal for the negative electrode which part is to be positioned over an area where the lead terminal for the negative electrode and the positive electrode can are present adjacent to each other. 
Hitachi Maxell, Ltd.
H Y
H01M Y02E
inventional additional
Tatsuya Kaoru Osamu
Takemura Hisatomi Watanabe