Cylindrical battery in which pressure sensor is embedded and method for measuring internal pressure of cylindrical battery
A pressure sensor, internal pressure technology, applied in small-sized batteries/batteries, fluid pressure measurement using piezoelectric devices, battery pack components, etc., can solve the problems of secondary battery appearance deformation, secondary battery explosion, etc. , to achieve the effect of preventing expansion or explosion and increasing the convenience of use
Active Publication Date: 2020-05-08
LG ENERGY SOLUTION LTD
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Problems solved by technology
[0010]
The present invention is directed to provide a cylindrical secondary battery having a pressure sensor for measuring the internal pressure of the cylindrical secondary battery and a method for measuring the internal pressure thereof, which has the advantage of solving the problem of using a conventional secondary battery problems such as deformation of the appearance of the conventional secondary battery or explosion of the conventional secondary battery due to an increase in the internal pressure of the conventional secondary battery when the conventional secondary battery is in an overcharged state or at a high temperature; And accurately determine the life of the secondary battery
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[0039] Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art to which the present invention pertains can easily implement the present invention. However, the present invention can be implemented in various forms and is not limited to the exemplary embodiments provided here.
[0040] In order to clearly describe the present invention, parts irrelevant to the description will be omitted, and throughout the current specification, the same reference numerals will be used to denote similar members.
[0041] In addition, the size and thickness of each member shown in the drawings are arbitrarily shown for convenience of explanation, and thus the present invention is not necessarily limited to what is shown in the drawings. In the drawings, the thickness of layers, films, panels, regions, etc., are exaggerated for clarity. Also, in the drawings, the thicknesses of some laye...
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A cylindrical battery according to one embodiment of the present invention comprises a pressure sensor for measuring the internal pressure of a secondary battery, and comprises: an electrode assemblycomprising a cathode plate, an anode plate and a separation membrane for electrically insulating the cathode plate and the anode plate; the pressure sensor positioned at one side of the electrode assembly and embedded in the cylindrical battery; and a top cap positioned at the other side of the electrode assembly, wherein the pressure sensor has insulation properties.
Description
[0001] Cross References to Related Applications [0002] This application claims priority and benefit from Korean Patent Application No. 10-2017-0180278 filed with the Korean Intellectual Property Office on December 26, 2017, the entire contents of which are incorporated herein by reference. technical field [0003] The present invention relates to a cylindrical secondary battery and a method for measuring the internal pressure thereof, and more particularly, the present invention relates to a cylindrical secondary battery having a pressure sensor for measuring the internal pressure of the cylindrical secondary battery and a cylindrical secondary battery A method used to measure its internal pressure. Background technique [0004] In modern society, according to the daily use of portable devices such as mobile phones, laptop computers, camcorders, digital cameras, etc., technologies in fields related to portable devices have been actively developed, and secondary technologie...
Claims
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IPC IPC(8): H01M10/48H01M2/04H01M2/02H01M50/107H01M50/147
CPCH01M10/48Y02E60/10H01M50/152H01M50/107H01M50/147H01M2200/20H01M10/4285G01R31/36H01M50/59G01L9/08G01L11/00
Inventor 金辰洙成周桓赵敏秀朴盛海
Owner LG ENERGY SOLUTION LTD