SECONDARY BATTERY, BATTERY PACK, ELECTRIC VEHICLE, ELECTRIC POWER STORAGE SYSTEM, ELECTRIC POWER TOOL, AND ELECTRONIC APPARATUS
Number of patents in Portfolio can not be more than 2000
United States of America
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N/A
Issued Date -
Mar 19, 2020
app pub date -
Nov 25, 2019
filing date -
Nov 25, 2019
priority date (Note) -
Published
status (Latency Note)
Importance
Abstract
A secondary battery includes a housing member having a bent portion defining an open end, a battery element, a lid member which extends in a cross direction crossing a housing direction of the battery element to the housing member to close the open end of the housing member and has a bottom surface facing the battery element, a top surface opposite to the bottom surface, and a side surface coupled to the bottom surface and the top surface, and a sealing member interposed between the bent portion and the lid member. The bent portion includes a specific bent portion bent along each of the side surface and the top surface of the lid member. A bending ratio R1 (=(L1/D1)×100%) is 10% or more and 13% or less.
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