| 摘要 |
A cap assembly for a battery includes a roll combination member, a terminal combination member, an electrode terminal, a strength reinforcing block, a cap, and a pad assembly. The roll combination member includes at least one opening, so that terminal disposed portions of 2k rolls are capable of passing through the opening and k is an integer greater than 1, wherein one terminal disposed portion is formed by bending portions of central members of two adjacent rolls. The terminal combination member, the electrode terminal, the strength reinforcing block, the cap, and the pad assembly are sequentially combined on the roll combination member, wherein the electrode terminal includes an electrically conductive portion and a thermally conductive portion which surrounds the electrically conductive portion. The cap assembly is electrically connected to the bending portions at the same side of the 2k rolls. |
| 主权项 |
1. A cap assembly for a battery, comprising:
a roll combination member, comprising at least one opening, so that a terminal disposed portion of a roll is capable of passing through the opening, wherein the terminal disposed portion is foil led by a bending portion of two ends of a central member of the roll; and a terminal combination member, an electrode terminal, a strength reinforcing block, a cap, and a pad assembly, sequentially combined on the roll combination member, wherein the electrode terminal comprises an electrically conductive portion and a thermally conductive portion which surrounds the electrically conductive portion, wherein the central member comprises:
a main portion, comprising a highly thermally conductive material;a first electrode convergence member and a second electrode convergence member, disposed at a first end and a second end of the main portion, the first end being opposite to the second end;a first connection member, formed by a highly thermally conductive and electrically insulative material having a thermal conductivity larger than 10 W/mK, the first connection member being disposed between the main portion and the first electrode convergence member, so as to connect the main portion and the first electrode convergence member, wherein the bending portion is disposed on the first electrode convergence member and the second electrode convergence member; anda second connection member, formed by a highly thermally conductive and electrically insulative material having a thermal conductivity larger than 10 W/mK, the second connection member being disposed between the main portion and the second electrode convergence member, so as to connect the main portion and the second electrode convergence member. |
