Automotive Lithium Ion Starter Battery

Abstract

The invention discloses an automobile lithium ion starting battery. At present, the lithium-ion starting battery composed of multiple battery packs, the random arrangement of the battery packs and the random connection of the electrodes of the adjacent battery packs will lead to high space occupation, messy wiring, and poor heat dissipation. The present invention includes a bracket and four cell groups placed on the bracket, and is characterized in that the first cell group and the fourth cell group are located on the upper layer, and the second cell group and the third cell group are located on the lower layer; The first to fourth battery packs are distributed in order from top to bottom, then from left to right, and finally from bottom to top; according to the distribution of the above-mentioned battery packs, among the two adjacent battery packs, the The positive pole of one battery core set is on the same side as the negative pole of the other battery core set, and are connected by a conductor. The invention enables a plurality of electric core groups to be fixed on the support, reduces the space occupancy rate of the multiple electric core groups, improves the heat dissipation effect of the electric core groups, and avoids the short circuit phenomenon of adjacent electric core groups.

Description

technical field [0001] The invention relates to a lithium-ion battery for vehicles, in particular to a lithium-ion starter battery for automobiles. Background technique [0002] Lithium-ion starting batteries currently used in automobiles require a large starting current, generally 150A to 1500A, and the instantaneous power generated is also large, generally 2KW to 50KW. A lithium-ion starting battery currently on the market is composed of 1-4 large-capacity (20-30Ah) battery cells, which has a good high-current discharge capacity and can meet a large starting current, but the large-capacity battery The body is thicker, and the current processing technology for sealing and wrapping large-capacity battery cells is immature, the processing is difficult, the pass rate is low, and the processing cost is high; The probability of explosion of the electric core body is high, and the safety is poor. [0003] For this reason, some lithium-ion starting battery cell groups (equivalen...

AI Technical Summary

Problems solved by technology

The current lithium-ion starting battery needs to be composed of 4 or 8 battery packs composed of the aforementioned small-capacity batteries. Usually, these battery packs are bundled together with straps, then put into the battery case, and positioned with a few wires. Strips or several positioning blocks are stuck between the cell group and the inner wall of the battery case to position the cell group, but the heat dissipation of the cell group in the battery is poor, and the positioning effect of the cell group is also poor; the adjacent cell group There may also be a short circuit

In addition, the random arrangement and stacking of 4 or 8 battery packs and the random connection of the electrodes of adjacent battery packs will lead to high space occupation, messy wiring, and poor heat dissipation

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