US Patent Application 18233053. METHOD OF MANUFACTURING SECONDARY BATTERY simplified abstract

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METHOD OF MANUFACTURING SECONDARY BATTERY

Organization Name

Murata Manufacturing Co., Ltd.

Inventor(s)

Teppei Akiyoshi of Kyoto (JP)

METHOD OF MANUFACTURING SECONDARY BATTERY - A simplified explanation of the abstract

This abstract first appeared for US patent application 18233053 titled 'METHOD OF MANUFACTURING SECONDARY BATTERY

Simplified Explanation

- The patent application describes a method of manufacturing a secondary battery. - The method involves placing an electrode assembly in a cup-shaped exterior member. - An electrolytic solution is then injected into the cup-shaped exterior member. - A lid-shaped exterior member is provided to cover the cavity of the cup-shaped exterior member and is fitted into at least a part of the cavity. - A laser is used to irradiate the boundary portion between the cup-shaped exterior member and the lid-shaped exterior member, forming a welded portion. - Both the cup-shaped exterior member and the lid-shaped exterior member have a first extending surface and a second extending surface. - The laser is emitted from one second extending surface to the other second extending surface, with the boundary portion in between. - This method simplifies the manufacturing process of secondary batteries by using laser welding to join the cup-shaped and lid-shaped exterior members.


Original Abstract Submitted

A method of manufacturing a secondary battery is provided and includes providing an electrode assembly in a cup-shaped exterior member; injecting an electrolytic solution into the cup-shaped exterior member; providing the lid-shaped exterior member so as to cover a cavity of the cup-shaped exterior member with a lid and to be fitted into at least a part of the cavity; and irradiating a boundary portion between the cup-shaped exterior member and the lid-shaped exterior member with laser to form a welded portion. In particular, in an embodiment, each of the cup-shaped exterior member and the lid-shaped exterior member includes a first extending surface constituting a boundary portion and a second extending surface facing the first extending surface while being spaced apart from each other, and the laser is emitted from one second extending surface of the cup-shaped exterior member and the lid-shaped exterior member to the other second extending surface of the cup-shaped exterior member and the lid-shaped exterior member with the boundary portion interposed therebetween.

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