SECONDARY BATTERY
First Claim
1. A secondary battery comprising:
- a positive electrode which includes a positive electrode active material layer;
a negative electrode which includes a negative electrode active material layer and which is arranged to face the positive electrode;
a housing container in which the positive and negative electrodes are housed; and
a lid member which seals an opening of the housing container, whereinthe positive and negative electrodes have edge portions respectively, and are housed in the housing container with a pressing force applied to a region of the positive and negative electrode active material layers excluding at least part of the edge portions.
1 Assignment
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Accused Products
Abstract
Provided is a reliable secondary battery with improved life characteristics. The lithium-ion secondary battery (secondary battery) has: a positive electrode which includes a positive electrode active material layer; a negative electrode which includes a negative electrode active material layer and which is arranged to face the positive electrode; a housing container in which the positive and negative electrodes are housed; and a lid member which seals the opening of the housing container. The positive and negative electrodes have edge portions respectively, and are housed in the housing container with a pressing force applied to a region of the positive and negative electrode active material layers excluding at least part of the edge portions.
43 Citations
51 Claims
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1. A secondary battery comprising:
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a positive electrode which includes a positive electrode active material layer; a negative electrode which includes a negative electrode active material layer and which is arranged to face the positive electrode; a housing container in which the positive and negative electrodes are housed; and a lid member which seals an opening of the housing container, wherein the positive and negative electrodes have edge portions respectively, and are housed in the housing container with a pressing force applied to a region of the positive and negative electrode active material layers excluding at least part of the edge portions. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31)
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32. A secondary battery comprising:
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a positive electrode which includes a positive electrode active material layer; a negative electrode which includes a negative electrode active material layer and which is arranged to face the positive electrode; a stacked member which has the positive and negative electrodes stacked alternately; a package container including a housing container in which the stacked member is housed, and a lid member which seals an opening of the housing container; and a swelling resin that swells when soaked with an electrolyte liquid, the swelling resin being arranged in the package container, wherein the stacked member has a pressing force applied thereto in a stack direction by the swelling resin swelling when an electrolyte liquid is injected into the package container. - View Dependent Claims (33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51)
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Specification