| US 7,575,829 B1 | ||
| Battery having reduced weight | ||
| Hiroshi Nakahara, Santa Clarita, Calif. (US); and Hisashi Tsukamoto, Santa Clarita, Calif. (US) | ||
| Assigned to Quallion LLC, Sylmar, Calif. (US) | ||
| Filed on Apr. 05, 2005, as Appl. No. 11/100,266. | ||
| Int. Cl. H01M 2/08 (2006.01); H01M 2/00 (2006.01) | ||
| U.S. Cl. 429—175 [429/163] | 6 Claims |
| 1. A battery case comprising:
a battery body including a first metal;
a cover bonded to the battery body such that a bottom side of the cover and the body define an interior of a battery, the
cover including
a second metal bonded to the first metal in the battery body,
the second metal being clad with a third metal and the second metal being bonded to the third metal with a bond that is in
accordance with a bond formed by a metal cladding process that relies on elevated pressure to cause diffusion of the second
metal and the third metal into one another,
the third metal covering less than 90% of an upper surface of the second metal,
one or more holes extending through the second metal and the third metal, a feedthrough assembly positioned in one of the
one or more holes, including
a feedthrough pin, and
a body surrounding the feedthrough pin, the body including a fourth metal bonded to the third metal with the fourth metal
being a different piece of metal than the third metal.
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