Secondary Battery Housing with Control Electronics

摘要

Rechargeable cells in cylindrical form are arranged within frames in a honeycomb structure and coupled by connecting straps outside the frames to form cell pack. Several cell packs, an electronic switch and control circuit are integrated into the battery housing. A bus bar extends around the perimeter of the housing. A high density MOSFET switch is coupled between the bur bar and the battery contact. A high power electronic clamp disposed across the battery terminals absorbs or redirects transients. An active, high-efficiency, low-noise cell balance converter or a LC based resonant converter may also be provided. For advanced battery applications a +5V CAN bus interface is provided via two circular connectors. Thermistors are provided for use in a thermal protection scheme.

主权项

1. An apparatus for electronically controlling and mechanically coupling cells together within a battery housing comprising:
a plurality of cylindrical cells having a diameter; two end frames each having a plurality of cell-receiving cups arranged in rows, wherein adjacent rows are staggered from each other by approximately one-half of the cell diameter so that said cells are retained within the end frames in a honeycomb configuration to form a cell pack, wherein said cell-receiving cups have an annular ring capped on one end with a circular bottom having an aperture therethrough; connecting tabs extending across adjacent cups and electrically soldered to said cells through said apertures to sandwich the end frames between said cells and said connecting tabs; and an electronic switch and control circuit including an LC resonant converter to maintain all cells at the same potential voltage and state of charge.