Panel type battery unit and assembling battery thereof
A technology for battery cells and combined batteries, applied in the direction of small flat batteries/batteries, primary batteries to battery packs, flat batteries, etc., which can solve problems such as fire, damage, and battery temperature rise
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Embodiment 2
[0066] This embodiment has the same structure as Embodiment 1 except that the width of each of the negative electrode terminal 4 and the positive electrode terminal 5 is 50 mm. Therefore, the B / A values of the negative electrode and the positive electrode were 0.71 and 0.77, respectively. (comparative example 1)
Embodiment 3
[0073] Fig. 8a shows an assembled battery, which is constructed by preparing three battery cells each of which are connected in parallel, and then connecting these battery cells in series. This will be called "3-series 2-parallel" type, and in the case of series Y sections of X cells in parallel, it will be called "Y-series X parallel".
[0074] First, 3 of each 2-parallel cells are prepared, each consisting of stacked two battery cells, and then, by, for example, ultrasonic welding, spot welding or riveting, the negative electrode collector 7 and the positive electrode collector of the appropriate parallel cell 8 are connected to each other. Although the battery in FIG. 8 is provided with electrode collector connection parts 9 for better understanding, these are parts welded or riveted. The parallel units are finally stacked in a 3-fold manner as shown in Figure 8a, so as to obtain a 3-series 2-parallel / electrode collection part terminal double-sided lead-out type combined b...
Embodiment 4
[0075] This embodiment relates to a 2-series 3-parallel type assembled battery.
[0076] Figure 8b The structure of a 2-series 3-parallel battery pack is shown. First, two 3-parallel units are prepared, each consisting of stacked three battery cells, and then, the positive electrode collection part 8 of one parallel unit and the negative electrode collection part 7 of the other parallel unit are ultrasonically welded, spot welded or riveted together. Although, for better understanding, image 3 The battery in b is provided with an electrode collector connecting portion 9, however, this portion is welded or riveted. Two parallel units end up as Figure 8b As shown, the 2 folds are stacked to obtain a 2-series 3-parallel / electrode collection terminal one-side lead-out type assembled battery.
[0077] As shown in Embodiments 3 and 4, by changing the way the electrode terminals are connected to each other, it is also possible to arbitrarily lead out the terminal of the electro...
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Abstract
Description
Claims
Application Information
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