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Battery cell, battery unit and battery stack

A battery cell, battery cell technology, applied to small-sized batteries/battery packs, batteries, electrical components, etc., can solve problems such as different bending directions, troublesome work, and easy connection errors

Inactive Publication Date: 2014-12-24
TOYODA GOSEI CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, in the battery cell 102 and the battery cell 112 in the conventional battery stack 100, the bending directions of the positive terminal 104p, 114p and the negative terminal 104n, 114n are different.
As described above, since the battery cells 102 and 112 use two types with positive terminals and negative terminals having different shapes, there is a problem that the stacked battery cells must be arranged alternately, which makes the work cumbersome. easy to connect incorrectly

Method used

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  • Battery cell, battery unit and battery stack
  • Battery cell, battery unit and battery stack
  • Battery cell, battery unit and battery stack

Examples

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Comparison scheme
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Embodiment Construction

[0067] (1) Outline structure of battery stack

[0068] figure 1 is a perspective view showing a battery stack holding a plurality of battery cells according to an embodiment of the present invention, figure 2 yes means figure 1A top view of the battery stack. The battery stack 10 has a structure in which a plurality of battery cells 20 composed of two battery cells are stacked. The battery cell 30 is a flat and square general-purpose battery, for example, a lithium-ion battery used as a power supply for automobiles can be used.

[0069] exist figure 1 The XYZ axes orthogonal to each other are shown in . The X direction corresponds to the first direction, the Y direction corresponds to the second direction, and the Z direction corresponds to the third direction. The battery cells 20 are arranged in the Z direction. Here, in the case of indicating specific battery cells 20 arrayed in the Z direction and their components, subscripts (n−1), (n), (n+1) . . . are added. ...

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Abstract

Rectangular battery cells 30A and 30B are used for the battery stack 10. Each of the battery cells 30A and 30B includes: a batter casing 32 having: a reference surface 32a defined by a first direction and a second direction orthogonal to each other; and a terminal support surface 32b extended from an end of the reference surface 32a toward a third direction orthogonal to both the first direction and the second direction; and a positive electrode terminal 34p and a negative electrode terminal 34n protruded from the terminal support surface 32b and arranged at a predetermined distance from each other in the first direction. The positive electrode terminal 34p and the negative electrode terminal 34n are located at positions of different distances in the first direction from the center of the terminal support surface 32b.

Description

technical field [0001] The invention relates to a battery cell, a battery unit and a battery stack. Background technique [0002] Currently, as such a battery stack, the technology of Patent Document 1 is known. Figure 11 is a view of the cell stack 100 viewed from above, Figure 12 From Figure 11 Viewed in the direction of the arrow AR. exist Figure 11 and Figure 12 Among them, the battery stack 100 is formed by sequentially stacking battery cells 102 and battery cells 112 having different structures. That is, the battery cell 102 has a positive terminal 104p and a negative terminal 104n on the end surface of the case. The positive terminal 104p and the negative terminal 104n are formed in an L-shape that protrudes upward in the drawing and then bends in the horizontal direction. On the other hand, the battery cell 112 has a positive terminal 114p and a negative terminal 114n on the end surface of the case. The positive electrode terminal 114p and the negative elec...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M2/30H01M2/02H01M10/0525H01M50/176H01M50/209H01M50/289H01M50/503H01M50/55H01M50/553H01M50/567
CPCH01M2220/20H01M50/258H01M50/553H01M50/55H01M50/289H01M50/176H01M50/503H01M50/209H01M10/658H01M50/567Y02E60/10
Inventor 辰己善亮横井孝明内田安则片山顺多
Owner TOYODA GOSEI CO LTD