| 摘要 |
PURPOSE:To reduce heat capacity of negative electrode and quicken voltage rising time by using a lithium-boron alloy negative electrode in which lithium- boron alloy is arranged inside a metal cup and the alloy is surrounded with a metal powder molding having electron conductivity and metal cup. CONSTITUTION:A negative active material 1 consists of a lithium-boron alloy sheet and arranged inside a metal cup 3. A metal powder molding 2 consists of metal alone or a mixture of metal powder and the powder mainly comprising electrolyte, and covers the surrounding of the lithium-boron alloy sheet with the metal cup 3. The metal powder used is necessary to be not alloyed of difficult to be alloyed with lithium, and iron nickel, stainless steel, or nichrom, or a mixture of these material is effectively used. The negative electrode is combined with an electrolyte layer 4, a positive mix layer 5, and a positive current collector 6 to form a unit cell. |
