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Electrochemical device

An electrochemical and cell technology, applied in the field of electrochemical devices, can solve the problems of irregular arrangement, idle and waste of equipment, and non-regular rectangular parallelepiped space for battery placement, so as to achieve improved performance, high efficiency, and simple and flexible preparation process. Effect

Active Publication Date: 2013-12-25
DONGGUAN AMPEREX TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

At present, the battery placement space left by mobile devices is almost not a regular cuboid. The arrangement of other electronic components often presents a stepped irregular arrangement. A regular single square lithium-ion battery will cause a certain amount of idle space in the internal space of the device. waste

Method used

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Embodiment Construction

[0032] The electrochemical device according to the present invention will be described in detail below with reference to the accompanying drawings. In the following description, the length and width of the single battery cell 1 can be defined with reference to the mark L in the length direction and the mark W in the width direction in the figure.

[0033] refer to Figure 1 to Figure 22 As shown, the electrochemical device according to the present invention includes a plurality of single battery cells 1 stacked in a stepwise manner, and tabs 2 of the same sex of the multiple single battery cells 1 are electrically connected together. The plurality of single battery cells stacked in steps and connected in parallel in the present invention can more flexibly adapt to the irregular space inside the electronic equipment using the electrochemical device, so that the space in the electronic equipment can be more fully utilized, and the battery life can be improved. The performance o...

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Abstract

The invention provides an electrochemical device. The electrochemical device comprises a plurality of single electric cores which are stacked in a stepped manner, wherein electrode lugs of the same polarity are electrically connected together. Compared with an electrochemical device adopting a single winding type electric core or an electrochemical device adopting a single laminated type electric core, the electrochemical device has the advantages that the plurality of the single electric cores which are stacked in the stepped manner can be more flexibly adapted to irregular internal space of electronic equipment adopting the electrochemical device, so that the using performance of the electrochemical device for the electronic equipment is improved, the space in the electronic equipment is utilized more sufficiently, and a manufacturing process is simpler, more flexible and high in efficiency.

Description

technical field [0001] The invention relates to the field of energy storage devices, in particular to an electrochemical device. Background technique [0002] Lithium-ion batteries are mainly used in mobile devices such as mobile phones, notebook computers, and digital cameras, and their compact size has become increasingly prominent, which puts forward higher requirements for the energy density of lithium-ion batteries. [0003] However, at present, it is becoming more and more difficult for lithium batteries to rely on material improvement to increase energy density, and it is particularly important to achieve energy improvement through more effective use of space. At present, the battery placement space left by mobile devices is almost not a regular cuboid. The arrangement of other electronic components often presents a stepped irregular arrangement. A regular single square lithium-ion battery will cause a certain amount of idle space in the internal space of the device. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M10/0583H01M2/20H01G11/12H01G11/22H01M50/536H01M50/54
CPCH01G11/06H01G11/26H01G11/76H01M10/0525H01M10/0585H01M10/0587H01G11/12H01M2220/30Y02E60/10Y02P70/50H01M50/536H01M10/0436H01M10/0431Y02E60/13
Inventor 李聪汪云龙何平史仲方宏新张柏清
Owner DONGGUAN AMPEREX TECH