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Secondary battery

A recharging and battery technology, which is applied in the manufacture of batteries, battery pack components, secondary batteries, etc., can solve the problem of explosion of ultra-small rechargeable batteries, and achieve the effect of suppressing the risk of explosion

Pending Publication Date: 2021-12-21
SAMSUNG SDI CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The ultra-small rechargeable battery is at risk of exploding due to increased internal temperature and pressure when an unexpected event occurs in it

Method used

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Embodiment Construction

[0035] The present invention will be described more fully herein with reference to the accompanying drawings, in which some example embodiments of the invention are shown. As those skilled in the art would realize, the described embodiments may be modified in various different ways, all without departing from the spirit or scope of the present invention. The drawings and description are to be regarded as illustrative in nature and not restrictive. Like reference numerals refer to like elements throughout the specification.

[0036] In addition, unless clearly stated to the contrary, it should be understood that terms such as "comprising", "comprising" or "having" used in this specification indicate that the features, numbers, steps, operations, components, parts and / or The existence of their combination does not exclude the existence or addition of one or more other features, numbers, steps, operations, components, parts or their combination.

[0037] Also, in this specifica...

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Abstract

A rechargeable battery includes: an electrode assembly including a first electrode, a second electrode, and a separator between the first electrode and the second electrode; a case configured to be connected to the first electrode and accommodate the electrode assembly, and including an opening to expose the electrode assembly; a cap plate configured to be coupled to the case to cover an outer area of the opening, and including a through-hole to expose a central area of the opening; a terminal plate configured to cover the through-hole and to be connected to the second electrode; and a thermal-fusion layer configured to be arranged between the cap plate and the terminal plate and to insulation-bond the cap plate and the terminal plate, and the thermal-fusion layer includes a plurality of layers including a thermoplastic resin layer.

Description

[0001] Cross References to Related Applications [0002] This application claims priority and benefit from Korean Patent Application No. 10-2020-0074398 filed with the Korean Intellectual Property Office on June 18, 2020, the entire contents of which are incorporated herein by reference. technical field [0003] Aspects of embodiments of the present disclosure relate to rechargeable batteries. Background technique [0004] Generally speaking, a rechargeable battery is a battery that can be charged and discharged repeatedly. [0005] Recently, as the demand for wearable devices such as headphones, earphones, smart watches, and body-attached medical devices using wireless communication such as Bluetooth has increased, there has been a demand for Demand for ultra-small rechargeable batteries is increasing. [0006] Such ultra-small rechargeable batteries are at risk of exploding due to an increase in internal temperature and pressure when an accident occurs within them. [0...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M50/375H01M10/04H01M50/153H01M50/181H01M50/188
CPCH01M10/0427H01M2220/30H01M50/183H01M50/184H01M50/186H01M50/188H01M50/19H01M50/193H01M50/197H01M50/198H01M50/30H01M50/342H01M50/375Y02E60/10Y02P70/50H01M50/581H01M50/152H01M50/155H01M50/147C23C22/24H01M2200/20H01M2200/10H01M50/181H01M50/109H01M50/154
Inventor 高希定金基正朴容辰禹炳喆李钟夏
Owner SAMSUNG SDI CO LTD
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