Electricity storage system and metal battery case manufacturing method
AssigneeHonda Motor Co., Ltd.
InventorsYoshinori Mita, Atsushi Sakurai
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Abstract
An electricity storage system comprises a plurality of battery cells in which battery elements are accommodated in angular metal battery cases, wherein the plurality of battery cells are connected together electrically and are disposed in such a manner as to form spaces between the metal battery cells, and wherein the metal battery cell comprises an angular metallic housing on an external surface of which irregularities are formed and a resin portion which is injection molded integrally on the external surface of the metallic housing.
Claims32
An electricity storage system comprising:
- a plurality of battery cells, each of which includes an angular metal battery case and a battery element accommodated in the metal battery case, the plurality of battery cells being electrically connected together and disposed in such a manner as to form spaces between the metal battery cases,
- wherein each of the metal battery cases has:
- an angular metallic housing having an external surface on which irregularities are formed, and
- a resin portion which is integrally molded on the external surface of the metallic housing through integral injection molding.
A method for manufacturing an angular metal battery case which accommodates a battery element so as to configure a battery cell, said method comprising:
- a working step of forming an angular metallic housing by pressing a sheet metal;
- a surface treatment step of forming irregularities on an external surface of the metallic housing;
- and
- a molding step of integrally molding a resin portion on the external surface of the metallic housing by insert molding with the metallic housing inserted.
An electricity storage system comprising:
- a plurality of battery cells, each of which includes an angular metal battery case having an angular metallic housing with an external surface on which irregularities are formed, and a battery element accommodated in the metallic housing of the metal battery case, the plurality of battery cells being electrically connected together and disposed in such a manner as to form spaces between the metal battery cases,
- wherein a metal battery case assembly is formed by insert molding the plurality of angular metallic housings inserted which are disposed so as to be aligned in a straight line, and
- wherein the metal battery case assembly comprises connecting portions which connect the plurality of metallic housings together and resin portions which are formed on external surfaces of the metallic housings.
A method for manufacturing an angular metal battery case which accommodates a battery element so as to configure a battery cell, said method comprising:
- a working step of forming an angular metallic housing by pressing a sheet metal;
- a surface treatment step of forming irregularities on an external surface of the metallic housing;
- and
- a molding step of connecting the plurality of metallic housings which are disposed so as to be aligned in a straight line together by insert molding with the plurality of metallic housings inserted and integrally molding resin portions on external surfaces of the plurality of metallic housings so connected together.
Dependencies are inferred from the claim text.