| 摘要 |
PROBLEM TO BE SOLVED: To provide a surface mountable solid lithium ion secondary battery which is strong against impact, improved in water resistance and high in reliability.SOLUTION: Disclosed is an all-solid lithium ion secondary battery 11 having a cell elementary body formed by alternately laminating a positive electrode layer 1 and a negative electrode layer 2 via an electrolyte layer 3, and an electrode at the end of the cell elementary body. The all-solid lithium ion secondary battery 11 has electrode extraction wiring 8 connected to an electrode 7, the cell elementary body, a terminal and the electrode extraction wiring 8 are covered with a waterproof layer 9 whose contact angle of water 60° or more, and furthermore the waterproof layer 9 is covered with an elastic layer 10 having the elastic modulus of 1×10to 9×10Pa, and the electrode extraction wiring 8 extends from the elastic layer 10. |
