| 摘要 |
PROBLEM TO BE SOLVED: To provide a battery pack in which heat evolution of each single battery can be suppressed.SOLUTION: A battery pack is configured so that plural chargeable/dischargeable single batteries 20A, 20B are arranged in a predetermined direction while electrically connected to each other. A partition plate 40 is disposed at at least one place of the gap between the arranged single batteries 20A, 20B. The partition plate 40 has a main spacer 42 formed of thermoplastic resin, and an auxiliary spacer 44 formed of metal or ceramic material. The main spacer 42 is disposed to be in contact with the container side walls 52 of the adjacent single batteries 20A, 20B. The auxiliary spacer 44 is partially disposed so as to have the thickness d in the arrangement direction which is smaller than the thickness D of the main spacer 42 and so as to have a space in which melted resin drops from the gap between the single batteries 20A, 20B to be removed when the main spacer 42 is melted. |
