Sealed battery and manufacturing method therefor

A manufacturing method and a sealed technology, applied in the direction of battery pack parts, final product manufacturing, sustainable manufacturing/processing, etc., can solve problems such as a large amount of welding energy, and achieve good efficiency, high reliability, and firm efficiency
CN101335339AActive Publication Date: 2008-12-31SANYO ELECTRIC CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
SANYO ELECTRIC CO LTD
Publication Date
2008-12-31

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Abstract

The present invention provides a manufacturing method for a sealed battery includes: a process whereby a sealed battery application electrode assembly 11 is formed that has multiple positive electrode substrate exposed portions 14 at one end and multiple negative electrode substrate exposed portions 15 at the other end; a process whereby the negative electrode collector 181 and negative electrode collector receiving part 183 are brought against both surfaces of the part to be welded on at least the negative electrode substrate exposed portions 15, with tape 23a constituted of thermo deposited resin and having an opening 231 in the center being interposed; and a process whereby resistance welding is effected by passing current between the negative electrode collector 181 and negative electrode collector receiving part 183 positioned at the two sides.
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Description

technical field

[0001] The present invention relates to a sealed battery and a manufacturing method thereof, in particular to preventing sputtering when resistance welding a current collector on a core body in an electrode body of a sealed battery having exposed portions of a positive core body and a negative pole core body at both ends. A highly reliable sealed battery and a method for manufacturing the same, in which fine dust moves to the inside of an electrode body and reduces the occurrence of internal short circuits. Background technique

[0002] In the automotive field, not only vehicles using fossil fuels such as gasoline, diesel, and natural gas, but also electric vehicles (EV) and hybrid electric vehicles (HEV) are being actively developed. In addition, the rapid increase in the price of fossil fuels in recent years has been a driving force for promoting the development of these EVs and HEVs.

[0003] Nickel-hydrogen secondary batteries or lithium ion secondary ba...

Claims

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