Electrochemical device and electronic device

An electrochemical and electrode assembly technology, applied in the field of energy storage, can solve the problems of reduced use safety, smoke, short circuit of electrochemical devices, etc., to improve the anti-drop performance and safety, increase the ability to resist mechanical The effect of short circuit risk

Active Publication Date: 2021-07-09
NINGDE AMPEREX TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Due to mechanical abuse such as falling, collision, vibration, etc. during the use of electronic products, it is easy to cause a short circuit inside the electrochemical device, causing failure, and more serious cases may cause the electrochemical device to heat up, smoke or even catch fire, reducing the safety of use sex

Method used

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  • Electrochemical device and electronic device
  • Electrochemical device and electronic device
  • Electrochemical device and electronic device

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Embodiment Construction

[0073] The following will clearly and completely describe the technical solutions in the embodiments of the application with reference to the drawings in the embodiments of the application. Apparently, the described embodiments are only some of the embodiments of the application, not all of them.

[0074] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the technical field to which this application belongs. The terms used in the description of the present application are only for the purpose of describing specific embodiments, and are not intended to limit the present application.

[0075] Some implementations of the present application will be described in detail below in conjunction with the accompanying drawings. In the case of no conflict, the following embodiments and features in the embodiments can be combined with each other.

[0076] see figure 1 and figure 2 , an embod...

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Abstract

An electrochemical device includes a housing, an electrode assembly, a first bonding piece, a second bonding piece, and a third bonding piece. The electrode assembly comprises pole pieces and an isolating membrane. The pole pieces comprise a first pole piece and a second pole piece, and the isolating membrane is arranged between the first pole piece and the second pole piece. The electrode assembly is of a winding structure and is arranged in the shell. In the winding direction, the electrode assembly comprises a first section, a first bent section, a second section and a second bent section, wherein the outermost ring of the first section is the isolating membrane. The electrode assembly includes a first end portion and a second end portion opposite to each other in a winding center axis direction. The first bonding piece is bonded with the outer surface of the first bent section and the tail part of the isolating membrane; the second bonding piece is bonded on the outer surface of the second bent section and is bonded on the tail part of the first pole piece; and the third bonding piece is arranged at the first end part and is bonded with the outer surface of the isolating membrane at the outermost ring of the first section and/or the outer surface of the pole piece at the outermost ring of the first section. The security is improved. The invention further provides an electronic device.

Description

technical field [0001] The present application relates to the technical field of energy storage, and in particular to an electrochemical device and an electronic device having the electrochemical device. Background technique [0002] Electrochemical devices (such as batteries) are widely used in electronic products such as electronic mobile devices, electric tools, and electric vehicles, and people have higher and higher requirements for the safety performance of electrochemical devices. Due to mechanical abuse such as falling, collision, vibration, etc. during the use of electronic products, it is easy to cause a short circuit inside the electrochemical device, causing failure, and more serious cases may cause the electrochemical device to heat up, smoke or even catch fire, reducing the safety of use sex. Contents of the invention [0003] In view of the shortcomings of the existing technology, it is necessary to propose an electrochemical device that is beneficial to im...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M10/0587H01M10/052H01M4/13H01M50/536
CPCH01M10/052H01M10/0587H01M4/13Y02P70/50
Inventor 胡克文石长川张远兵陈晓
Owner NINGDE AMPEREX TECH
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