| 摘要 |
PROBLEM TO BE SOLVED: To improve heat resistance and perform the charging and discharging of a battery successively even after high-temperature processing by forming a negative electrode of a negative electrode material capable of reversibly bearing lithium, forming a gasket of a polyether ether ketone, polyphenylene sulfide or fluorine resin, and using LiPF6 as a lithium salt included in an electrolyte. SOLUTION: A positive electrode 2 and a negative electrode 3 are bonded to the inner bottom parts of a positive electrode can 1 and a negative electrode can 6 by conductive paste 4, 4', respectively. The positive electrode can 1 and the negative electrode can 6 having the positive electrode 2 and the negative electrode 3 bonded, respectively, face to each other through a separator 5, and are insulated by a gasket 7, so that their airtightness and gastightness are retained. An electrolyte is individually infiltrated into the positive electrode 2, the negative electrode 3 and the separator 5, and retained there. A polyether ether ketone, polyphenylene sulfide or fluorine resin is used for the gasket 7 for coping with reflow soldering. Those resins each have a very high melting point in the range of 250-330 deg.C and are excellent in heat resistance. |
