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Inner-union current collector of power cell module

A power battery and current collector technology, which is applied in the field of inline current collectors, can solve the problems of adjacent unit electrolyte strings, unstable tearing and welding parts, and easy concentration of current collector plate stress, so as to improve power performance and stability consistent effect

Inactive Publication Date: 2011-02-16
江苏奇能电池有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The positive collector plate and negative collector plate of the adjacent single battery are connected inside the terminal post, and the terminal post and the positive and negative current collector plates are connected by welding, which will easily cause the electrolyte of adjacent units to be in series and the collector plate will be easily stressed. Concentration, tearing welding parts and other instability problems

Method used

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  • Inner-union current collector of power cell module
  • Inner-union current collector of power cell module
  • Inner-union current collector of power cell module

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Embodiment Construction

[0019] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0020] Such as Figure 4 As shown, the two metal plates and the conductors connecting the two metal plates form an H-shaped structure to form an inline current collector metal piece (the material can be nickel, stainless steel, low carbon steel, copper, aluminum or its composite materials). ABS, PP, PA, PPO or their modified and doped composite materials seal and enclose the inline current collector metal parts, leaving only the outer plates of the two metal plates on both sides to form the inline current collector J.

[0021] Such as Figure 5 As shown, the positive and negative plates coated with active materials are separated by a diaphragm, and alternately stacked together to form a plate bundle. The positive electrode of the plate bundle is uniformly welded on an inline collector at one end of the plate bundle, and the negative Then it is uniform...

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Abstract

The invention discloses an inline collector of a power battery module, comprising sealed plastic (1) and an inline collecting metalwork (2). The inline collecting metalwork (2) is composed of two metal plates and an electrical conductor connecting the two metal plates, wherein the inline collecting metalwork (2) is wholly sealed and included in the sealed plastic (1) except the metal plate surfaces at both sides. The invention not only can avoid the direct welding of adjacent battery units of the power battery module to realize fine collection of positive and negative electrode plates of a monomer battery but also can realize the interior bonding of adjacent monomer batteries and separated inline collector.

Description

technical field [0001] The invention belongs to the field of batteries, and in particular relates to an inline current collector of a power battery module. Background technique [0002] In recent years, a "pole-type current collecting structure" has been proposed (see attached figure 1 ), "Face Welding Fluid" (see attached figure 2 ) and other current-collecting structures have improved the power performance of the battery and have achieved great development and breakthroughs. [0003] In some of these batteries, in order to realize the modularization of the battery, adjacent cells are usually connected through the external connection of the connecting piece or the internal connection of the terminal. Modular combination by external connection has low space utilization rate; modular combination by internal connection has more compact structure and higher space utilization. The positive collector plate and negative collector plate of the adjacent single battery are connec...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01M2/20H01M50/502H01M50/503
CPCY02E60/10
Inventor 费扬
Owner 江苏奇能电池有限公司