A novel structure for connecting a foil electrode tab winding type battery pole set and a cover plate

A connection structure and battery pole technology, applied in the direction of battery cover/end cover, battery pack components, batteries, etc., can solve the problem of low energy of lithium-ion batteries, and achieve high process achievability, good effect, and flexible design Effect

Active Publication Date: 2017-12-15
LISHEN (QINGDAO) NEW ENERGY CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] 1) At present, the energy of lithium-ion batteries is relatively low, which affects the cruising range of electric vehicles, but there is still room for development in the space utilization of batteries. The improvement of space utilization can increase the energy ratio of batteries

Method used

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  • A novel structure for connecting a foil electrode tab winding type battery pole set and a cover plate
  • A novel structure for connecting a foil electrode tab winding type battery pole set and a cover plate
  • A novel structure for connecting a foil electrode tab winding type battery pole set and a cover plate

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Embodiment Construction

[0014] The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0015] It should be noted that the "connection" mentioned in this application and the words used to express "connection", such as "connected", "connected", etc., can refer to the direct connection between a certain component and another component, It can also mean that a certain component is connected to another component through other components.

[0016] It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other.

[0017] The invention is suitable for batteries with aluminum shells, especially for power batteries with high energy ratio and high power.

[0018] Such as figure 1...

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Abstract

A novel structure for connecting a foil electrode tab winding type battery pole set and a cover plate is disclosed. The structure includes a positive electrode pressing plate, a negative electrode pressing plate, a positive electrode rubber mat, a negative electrode rubber mat, the cover plate, a positive electrode rivet, a negative electrode rivet, a positive electrode sealing mat, a negative electrode sealing mat, a positive electrode connecting claw, a negative electrode connecting claw, connecting pieces, and the pole set. The positive electrode rivet passes through the positive electrode sealing mat, the positive electrode connecting claw, the cover plate, the positive electrode rubber mat and the positive electrode pressing plate in order and then is riveted. The negative electrode rivet passes through the negative electrode sealing mat, the negative electrode connecting claw, the cover plate, the negative electrode rubber mat and the negative electrode pressing plate in order and then is riveted. The connecting pieces are connected to the pole set through ultrasonic welding, and then the connecting pieces of positive and negative electrodes are connected to the positive electrode connecting claw and the negative electrode connecting claw respectively through ultrasonic welding or laser welding. Beneficial effects of the novel structure include 1) a high battery energy ratio, 2) a low price and 3) high process implementability.

Description

technical field [0001] The invention relates to the technical field of power battery structures, in particular to a novel connection structure between a foil tab wound battery pole group and a cover plate. Background technique [0002] At present, China is in a situation of high energy consumption, and the consumption of traditional energy is increasing rapidly every year, but the proven storage capacity can only be used for 50 years, and traditional energy is polluting, burning oil will produce a large amount of carbon dioxide, The polluting gas of sulfur dioxide has caused serious air pollution. The rise of PM2.5 in recent years has led to smog weather, which is the best proof. Under such a background, only new energy sources can be developed. Hydrogen-oxygen fuel cells, shale gas, solar energy, and lithium-ion batteries have emerged as the times require. However, only lithium-ion batteries are in line with my country's current situation, so the government is doing its bes...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M2/22H01M2/04H01M50/528H01M50/147
CPCH01M2220/20H01M50/147H01M50/528Y02E60/10
Inventor 赵博文刘凤龙张娜
Owner LISHEN (QINGDAO) NEW ENERGY CO LTD
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