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US 12,658,490 B2Granted
Energy storage device
AssigneesGS Yuasa International Ltd., Blue Energy Co., Ltd.
InventorsYudai Kawasoe, Yuta Ohsugi, Taisei Sekiguchi, Kazushi Nitta
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Abstract
An energy storage device according to an aspect of the present invention includes: an electrode assembly in which a positive electrode and a negative electrode are stacked with a separator interposed therebetween; an electrolyte solution; and a sealable case for housing the electrode assembly and the electrolyte solution, in which a compressive modulus of elasticity of the separator is 15 MPa or more and an inside of the case is in a negative pressure state.
Claims9
An energy storage device comprising:
- an electrode assembly in which a positive electrode and a negative electrode are stacked with a separator interposed therebetween;
- an electrolyte solution;
- and
- a sealable case for housing the electrode assembly and the electrolyte solution, wherein
- carbon dioxide is stored inside the case,
- a compressive modulus of elasticity of the separator is 15 MPa or more, an inside of the case is in a negative pressure state, and
- an internal pressure of the case is 0.07 MPa or less.
4 more elements
Dependencies are inferred from the claim text.