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US 9,853,329 B2Granted
Method for producing and apparatus for producing secondary battery
AssigneesEliiy Power Co., Ltd., Nagano Automation Co., Ltd.
InventorsHiroshi Sato, Seiji Yamaura, Takuya Sakata
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Abstract
After a separator is brought into a tension-free state, a plurality of guide members are crossed in a horizontal direction between rows of the guide members to fold the separator or a superposed body zigzag. Positive electrode plates or negative electrode plates are inserted into the resulting furrows to produce a secondary battery.
Claims21
A method for producing a secondary battery, comprising:
- a folding step of using a plurality of guide members to fold a body comprising a separator into a zigzag shape to form a zigzag-folded body comprising a separator,
- following the folding step, inserting positive electrode plates into respective furrows of the zigzag-folded body comprising a separator to form a multilayer body, the multilayer body comprising the positive electrode plates and at least one negative electrode plate that are superposed alternately via the separator;
- a withdrawal step of withdrawing the guide members from inside the respective furrows of the body comprising a separator;
- and
- a pressing step of pressing the multilayer body in a direction in which the positive electrode plates and the at least one negative electrode plate are stacked,
- wherein the folding step is performed after the body comprising a separator is brought into a tension-free state and held between the guide members with opposite end sides of the body being movable.
3 more elements
Dependencies are inferred from the claim text.