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US 2015/0318519 A1Published application
Electric storage device, electric storage device assembly, and method for producing electric storage device
AssigneeGS Yuasa International Ltd.
InventorsMasakazu TSUTSUMI, Takuma TONARI
Life of this patent
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Abstract
Provided is an electric storage device including a first conductive member having a head bulging from an inserted part inserted through a partition wall, and a second conductive member that is formed using a metal material different from a material of the first conductive member and is fixed to the head of the first conductive member by friction stir welding.
Claims14
An electric storage device comprising:
- an electrode assembly including a positive electrode plate and a negative electrode plate insulated from each other;
- a case comprising a partition wall and housing the electrode assembly;
- a first conductive member passing through the partition wall and electrically connected to the electrode assembly inside the case;
- and
- a second conductive member arranged outside the case and electrically connected to the first conductive member, wherein
- the first conductive member comprises an inserted part inserted through the partition wall and a head bulging from the inserted part, and
- the second conductive member is formed using a metal material different from a material of the first conductive member and is fixed to the head of the first conductive member by friction stir welding.
4 more elements
An electric storage device comprising:
- an electrode assembly including a positive electrode plate and a negative electrode plate insulated from each other;
- a case by comprising a partition wall and housing the electrode assembly;
- a first conductive member passing through the partition wall and electrically connected to the electrode assembly inside the case;
- and
- a second conductive member arranged outside the case and electrically connected to the first conductive member, wherein
- the first conductive member comprises an inserted part inserted through the partition wall and a head bulging from the inserted part,
- the first conductive member is formed using a first metal material,
- the second conductive member is formed using a second metal material that is different from the first conductive member, and
- the second conductive member is fixed to the head of the first conductive member via a nugget part in which the first metal material and the second metal material are mixed.
6 more elements
Dependencies are inferred from the claim text.