Massively parallel spacecraft battery cell module design

Details Massively parallel spacecraft battery cell module design Massively parallel spacecraft battery cell module design

1997-10-22

1999-09-07

Nuzzolillo, Maria

Chemistry: electrical current producing apparatus, product, and

With nonbattery electrical component electrically connected...

429120, 429159, 429160, 429 62, H01M 1050, H01M 642, H01M 224

Patent

active

059485566

ABSTRACT:
A very large number of small electric cells are assembled electrically in parallel into a cell module to provide a large ampere-hour capacity and, in turn, multiple cell modules are series connected into a spacecraft battery having the power necessary to satisfy the requirement of the spacecraft. The invention provides for (a) three-dimensional packaging of parallel cells, (b) rejecting the internal heat from such a package, and (c) providing redundant electrical fuse protection for the internal cell array. Thus, at least first and second layers are provided, each being of plural commonly aligned, parallel bussed, electric cells, each cell including opposed ends and an outer peripheral surface. The cells are disposed in a planar side-by-side relationship, and each layer includes a plurality of outermost cells encompassing an interior region. The layers are connected electrically in parallel and are laterally coextensive and aligned in an end-to-end relationship. A heat sink is provided including a heat conductive body having a radiative surface facing deep space, and heat shunts extend between the interior regions of the layers and the radiative surface. Fuse devices are provided in series with each of the electric cells and are responsive to excessive current flow to sever connection of its associated electric cell from the battery system.

REFERENCES:
patent: 4188460 (1980-02-01), Kang et al.
patent: 4239840 (1980-12-01), Puri
patent: 4514476 (1985-04-01), Fitzgerald
patent: 5034290 (1991-07-01), Sands et al.

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