| 摘要 |
PROBLEM TO BE SOLVED: To provide a compact, thin and high capacity electrochemical cell whose performance degradation due to water penetration from the outside is extremely small and which does not require attachment of tab terminals, etc.SOLUTION: Excellent characteristics of an electrochemical cell were obtained by using an outer case having a conductive pattern serving also as a cathode collector assembled therein and a conductive material consisting of a metal, a carbon or a conductive ceramic material to obtain a composition free of anode corrosion. Further, highly reliable encapsulation was also achieved by applying seam welding using a resistance welding method. A chip type electrochemical cell highly resistant to anode corrosion composed of a pair of electrodes consisting of a cathode and an anode, a separator and a nonaqueous electrolyte was realized. |
