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Single-side pole long battery and electric energy storage device

A technology of column length and battery, which is applied in the field of single-side pole long batteries and electric energy storage devices, and can solve the problems that the positive and negative pole lugs cannot be set on the same side, and the positive and negative pole lugs of long batteries cannot be set on the same side, etc. , to achieve the effect of uniform distribution of current carrying density

Pending Publication Date: 2022-02-25
SVOLT ENERGY TECHNOLOGY CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Therefore, the technical problem to be solved by the present invention is to overcome the defect in the prior art that the positive and negative tabs of the long batteries cannot be arranged on the same side, thereby providing a single-side pole that can place the positive and negative tabs on the same side. Column length battery
[0004] Another technical problem to be solved by the present invention is to overcome the defect that the positive and negative pole lugs of the long battery cells in the prior art cannot be arranged on the same side, thereby providing a method that can set the positive and negative pole lugs of the long battery Electrical energy storage device on the same side

Method used

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  • Single-side pole long battery and electric energy storage device
  • Single-side pole long battery and electric energy storage device

Examples

Experimental program
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Embodiment 1

[0053] combine Figure 1-Figure 13 As shown, the single-side pole long battery provided in this embodiment includes:

[0054] At least one first battery cell 11 and at least one second battery cell 12, the first battery cell 11 includes: a pole group consisting of a positive pole piece and a negative pole piece; a first positive pole ear 21, arranged on the first battery cell The first end of 11; the second positive tab 22 and the second negative tab 32 are arranged at the second end of the first cell 11;

[0055] The second battery cell 12 includes: a pole group consisting of a positive pole piece and a negative pole piece; a first negative pole ear 31 arranged at the first end of the second battery core 12; a second positive pole ear 22 and a second negative pole ear 32, disposed at the second end of the second cell 12;

[0056] The first cell 11 is stacked with the second cell 12, the first end of the first cell 11 corresponds to the first end of the second cell 12, and t...

Embodiment 2

[0092] combine Figure 1-Figure 13 As shown, this embodiment provides an electric energy storage device, including:

[0093] A plurality of long single-side pole batteries as described above, the multiple long single-side pole batteries are connected in series and / or in parallel.

[0094] In the electric energy storage device provided in this embodiment, by setting a plurality of batteries with long poles on one side, the batteries with long poles on one side can be connected in series or in parallel, or connected in series and parallel at the same time. The positive and negative tabs of the pole-length battery are located on the same side, so when a plurality of single-side pole-length batteries are connected, it is convenient to arrange structural parts such as connection bars, which is similar to the traditional long batteries with tabs on both sides. Compared, it takes up less space and is easy to connect, which greatly improves battery performance.

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Abstract

The invention relates to the technical field of batteries, in particular to a single-side pole long battery and an electric energy storage device. According to the single-side pole long battery, a first positive tab is arranged at the first end of a first battery cell, a first negative tab is arranged at the first end of a second battery cell, a second positive tab and a second negative tab are arranged at the second end of the first battery cell and the second end of the second battery cell, the first battery cell and the second battery cell are correspondingly connected through the tabs at the second ends to achieve parallel connection of the two battery cells, the first positive tab serves as a positive output end to be connected with the outside, the first negative tab serves as a negative output end to be connected with the outside, when a complete current loop is formed, uniform current can pass through the first ends and the second ends of the battery cells, the first positive tab and the first negative tab are positioned at the same end, so that the positive tab and the negative tab are arranged on the same side, and meanwhile, the uniform distribution of the current-carrying density on the pole piece can be ensured. therefore, The invention provides the single-side pole long battery in which the positive tab and the negative tab can be arranged on the same side.

Description

technical field [0001] The invention relates to the field of battery technology, in particular to a single-side long pole battery and an electric energy storage device. Background technique [0002] With the increasing maturity of lithium battery technology, lithium batteries are widely used as power batteries in the fields of electric vehicles and energy storage. The overall size of the square hard-shell battery in the prior art is small, and the structural parts such as the output electrode need to occupy a certain space, which is not conducive to improving the utilization rate of the battery core relative to the overall volume of the battery; the blade in the prior art The battery is a long battery cell with a large overall size, so the volume ratio of the output electrode and other structural parts to the battery as a whole is relatively small, which is conducive to increasing the volume ratio of the winding core to the battery as a whole, thereby increasing the energy d...

Claims

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Application Information

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IPC IPC(8): H01M50/512H01M50/503H01M50/531H01M50/536H01M50/586H01M50/593H01M50/55H01M50/176H01M10/052H01M10/0587H01M50/30
CPCH01M50/512H01M50/503H01M50/531H01M50/536H01M50/586H01M50/593H01M50/55H01M50/176H01M10/052H01M10/0587H01M50/30Y02E60/10Y02P70/50
Inventor 曲凡多张海建孙彩亮刘月园许挂帅
Owner SVOLT ENERGY TECHNOLOGY CO LTD
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