System, method, and apparatus for battery cell-stack compression
AssigneeFacebook, Inc.
InventorsAlex Andryukov, Jason Wallace
Life of this patent
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Abstract
The present disclosure relates to the manufacture of battery packs/assemblies and more specifically, the manufacture of battery packs/assemblies for use in aircraft. A lightweight battery assembly with cell compression and/or pressure management system is disclosed herein. The battery assembly can employ a composite battery enclosure impregnated with a plurality of primary fibers that define a direction of the composite battery enclosure's tensile strength. A cell-stack can be positioned in the composite battery enclosure such that the composite battery enclosure applies a predetermined pressure upon the cell-stack to compress the cell-stack in the direction of the composite battery enclosure's tensile strength.
Claims20
A battery pack comprising:
- a composite-fiber-compression sleeve impregnated with a plurality of primary fibers that defines a direction of a tensile strength for the composite-fiber-compression sleeve;
- and
- a plurality of battery cells stacked to define a cell-stack,
- wherein the composite-fiber-compression sleeve encloses the cell-stack such that the direction of the tensile strength is parallel to a direction of a primary fiber load for the plurality of primary fibers and the composite-fiber-compression sleeve applies a predetermined pressure upon the cell-stack to compress the cell-stack in the direction of the tensile strength for the composite-fiber-compression sleeve.
A battery pack assembled by a method comprising:
- compressing a cell-stack to a predetermined pressure, wherein a plurality of battery cells is stacked to define the cell-stack;
- and
- inserting, into a composite-fiber-compression sleeve, the cell-stack while maintaining the predetermined pressure, wherein the composite-fiber-compression sleeve is impregnated with a plurality of primary fibers that defines a direction of a tensile strength for the composite-fiber-compression sleeve, the direction of the tensile strength is parallel to a direction of a primary fiber load for the plurality of primary fibers, and the composite-fiber-compression sleeve applies a predetermined pressure upon the cell-stack to compress the cell-stack in the direction of the tensile strength for the composite-fiber-compression sleeve.
Dependencies are inferred from the claim text.