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Electrochemical device and electric device

An electrochemical and electrical connection technology, applied in the field of electrochemistry, can solve problems such as the inability to meet high-rate discharge, and achieve the effect of ensuring the current carrying capacity.

Pending Publication Date: 2021-11-16
NINGDE AMPEREX TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] In view of this, the present application provides an electrochemical device and an electrical device to improve the problem that the existing narrow and long lithium-ion batteries cannot meet high-rate discharge

Method used

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  • Electrochemical device and electric device
  • Electrochemical device and electric device
  • Electrochemical device and electric device

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Embodiment Construction

[0039] The following will clearly and completely describe the technical solutions of each exemplary embodiment provided in the present application with reference to the accompanying drawings in the embodiments of the present application. In the case of no conflict, the following embodiments and technical features thereof can be combined with each other.

[0040] The directional terms mentioned in this application, such as up, down, top, bottom, front, back, left, right, inside, outside, side, center, periphery, horizontal, transverse, vertical, longitudinal, radial, axial, most The upper layer or the lowermost layer, etc., are only referring to the directions of the drawings. Therefore, the directional terms used are used to illustrate and understand the application, but not to limit the application.

[0041] Electrochemical devices in this application include all devices in which electrochemical reactions take place. Exemplary, electrochemical devices include, but are not l...

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Abstract

An electrochemical device comprises a housing (30), an electrode assembly (10), a first conductive terminal (22) and a second conductive terminal (23). The electrode assembly (10) comprises a first pole piece (11) and a second pole piece (12) which are arranged at an interval; the case (30) accommodates the electrode assembly (10). The first conductive terminal (22) is electrically connected with the first pole piece (11); and the second conductive terminal (23) is electrically connected with the second pole piece (12). Wherein the first conductive terminal (22) and the second conductive terminal (23) are stacked and extend out of the shell (30).

Description

technical field [0001] The present application relates to the field of electrochemical technology, in particular to an electrochemical device and an electrical device. Background technique [0002] Lithium-ion batteries are widely used due to their environmental friendliness, high working voltage, large specific capacity and long cycle life, and have become the most promising new green chemical power sources in the world today. [0003] At present, the cell manufacturing process of lithium-ion batteries is briefly described as follows: the stacked positive electrode sheet, separator and negative electrode sheet are wound to form a winding structure, wherein the positive electrode sheet is provided with a positive electrode active material layer, and the negative electrode sheet is provided with a negative electrode active material layer. The tabs are protruded from each winding layer of the winding structure, and these tabs are transferred and welded with the positive conduc...

Claims

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Application Information

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IPC IPC(8): H01M50/588
CPCH01M50/588
Inventor 周权
Owner NINGDE AMPEREX TECH
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