Energy storage device and manufacturing method thereof, and unit cell for energy storage device
A technology for unit cells and energy storage devices, which is applied in secondary batteries, battery pack components, and final product manufacturing, etc., can solve problems such as poor performance of unit cells and energy storage devices, uneven temperature distribution, and legacy issues.
Inactive Publication Date: 2013-01-02
SAMSUNG ELECTRO MECHANICS CO LTD
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Problems solved by technology
[0013] However, since the electrical conductivity of the positive terminal 11, the negative terminal 12, and the battery body 13 of the unit cells 10 are different, the temperature distribution over all the unit cells is not uniform, and if the energy storage is constructed by stacking the plurality of unit cells 10 In the case of device 1, the problem of uneven temperature distribution will still remain, and the maximum temperature and the minimum temperature are much different, such as figure 2 As shown, there is therefore a problem of deterioration in the performance of the unit cells and energy storage devices
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[0031] Hereinafter, exemplary embodiments will be described in more detail with reference to the accompanying drawings. In the following description, when elements are shown in different drawings, the same reference numerals and signs are used to denote the same elements, and additional descriptions thereof will be omitted.
[0032] In the following, reference will be made to Figure 3 to Figure 6 A unit battery for an energy storage device and an energy storage device including the same are described in more detail.
[0033] image 3 is a perspective view schematically showing a unit cell for an energy storage device according to an exemplary embodiment, Figure 4 is an assembled perspective view schematically illustrating an energy storage device according to an exemplary embodiment, Figure 5 is an exploded perspective view schematically illustrating an energy storage device according to an exemplary embodiment, and Image 6 is a view showing a temperature distribution ...
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Abstract
The invention discloses an energy storage device and a manufacturing method thereof, and a unit cell for the energy storage device. The energy storage device includes a plurality of unit cells stacked therein, each of the unit cells including a cell body, a positive terminal disposed at one side of the cell body, and a negative terminal disposed in the cell body to form a constant rotation angle with the positive terminal with reference to a center of the cell body, wherein the plurality of cell units are stacked in such a manner that another unit cell is rotated as much as the constant rotation angle with reference to one unit cell. Temperature distribution, that is, heat distribution in the energy storage device can be kept even, and heat transmission efficiency between the terminals and the external air can be improved and thus cooling efficiency can be improved. Also, a resistance value is reduced by improving a cooling function so that performance and reliability of a product can be improved.
Description
[0001] Cross References to Related Applications [0002] This application calls for an application filed on June 27, 2011 under 35 U.S.C. Part 119, entitled "Energy Storage Device and Manufacturing Method Thereof, and Unit Cell for Energy Storage Device (Energy Storage Device and Manufacturing Method Thereof, and Unit Cell for Energy Storage Device) unit battery for energy storage devices), the entire content of which is hereby incorporated by reference into this application. technical field [0003] The present invention relates to an energy storage device, and more particularly to such an energy storage device, which has an average temperature distribution over all stacked unit cells, and effectively separates the positive and negative terminals from the external Heat is transferred between the air, thereby increasing the cooling efficiency, and thus improving the performance and reliability of the energy storage device, the present invention also relates to a manufacturing ...
Claims
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IPC IPC(8): H01G11/12H01G11/06H01G11/22H01G11/84H01M2/30H01M10/0525H01M10/058
CPCH01G11/12Y02E60/13H01G9/00H01G11/08Y10T29/43Y02P70/50
Inventor 尹灿郑玄喆郑永学金倍均
Owner SAMSUNG ELECTRO MECHANICS CO LTD