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Lead-silicon composite bipolar battery

A bipolar battery and battery case technology, applied in lead-acid batteries, lead-acid battery electrodes, lead-acid battery construction, etc., can solve problems such as uneven distribution and high current density, and achieve good electrical conductivity and current density. The effect of uniform distribution and large contact area

Inactive Publication Date: 2019-05-28
ZHAOQING LEOCH BATTERY TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a lead-silicon composite bipolar battery, which includes an electrode group for a lead-silicon composite bipolar battery, and also includes fastening screws, a first battery casing, a second battery casing, and a third battery casing body, the fourth battery case, the fifth battery case and the battery inner cavity, and the first battery case, the second battery case, the third battery case, and the fourth battery case are arranged in sequence from top to bottom inside the battery inner cavity body and the fifth battery casing, and the bottom of the first battery casing is evenly distributed with multiple fastening screws to solve the problem of high current density and uneven distribution at the busbar and pole of the existing lead-acid battery

Method used

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Examples

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Embodiment 1

[0037] like figure 1 , 12 As shown, in the embodiment of the present invention, a lead-silicon composite bipolar battery electrode group includes a positive plate 9, a negative plate 12, a first separator 10 and a second separator 11, and the positive plate 9 and the negative plate The plates 12 are respectively formed by coating positive and negative active materials on the surface of the grid 18, and a first separator 10 and a second separator 11 are arranged between the positive plate 9 and the negative plate 12;

[0038] The grid 18 is a corrosion-resistant grid, and the grid 18 mainly plays the role of carrying the active material, and the positive active material is made of PbO 2 and positive electrode additives, and the negative active material is composed of spongy Pb and negative electrode additives. The plastic mesh grid 18 has the advantages of strong corrosion resistance and can significantly increase battery life. Compared with the lead grid of the existing stora...

Embodiment 2

[0043] like Figure 1-16As shown, in the embodiment of the present invention, a lead-silicon composite bipolar battery includes the electrode group for the lead-silicon composite bipolar battery as described in Example 1, and also includes a fastening screw 1, a first battery case 2. The second battery case 7, the third battery case 13, the fourth battery case 14 and the fifth battery case 15, the first battery case 2 and the second battery case are arranged in sequence from top to bottom inside the battery 7. The third battery case 13, the fourth battery case 14, and the fifth battery case 15. The bottom of the first battery case 2 is evenly distributed with a plurality of fastening screws 1, and the upper ends of the fastening screws 1 pass through the first The battery case 2, the second battery case 7, the third battery case 13, the fourth battery case 14 and extend to the top of the fifth battery case 15, the same number of nuts 16 are evenly distributed on the upper part...

Embodiment 3

[0051] like Figure 1-16 As shown, in the embodiment of the present invention, a lead-silicon composite bipolar battery includes the electrode group for the lead-silicon composite bipolar battery as described in Example 1, and also includes a fastening screw 1, a first battery case 2. The second battery case 7, the third battery case 13, the fourth battery case 14 and the fifth battery case 15, the first battery case 2 and the second battery case are arranged in sequence from top to bottom inside the battery 7. The third battery case 13, the fourth battery case 14, and the fifth battery case 15. The bottom of the first battery case 2 is evenly distributed with a plurality of fastening screws 1, and the upper ends of the fastening screws 1 pass through the first The battery case 2, the second battery case 7, the third battery case 13, the fourth battery case 14 and extend to the top of the fifth battery case 15, the same number of nuts 16 are evenly distributed on the upper par...

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Abstract

The invention discloses a lead-silicon composite bipolar battery, belongs to the technical field of storage batteries, and solves the problems of high current density, non-uniform distribution, low gravimetric specific energy and short battery cycle life of a busbar and a pole of an existing lead-acid storage battery. Technical characteristics are as follows: the lead-silicon composite bipolar battery comprises a pole group for the lead-silicon composite bipolar battery, and also comprises a fastening screw, a first battery shell, a second battery shell, a third battery shell, a fourth batteryshell, a fifth battery shell and a battery inner cavity. According to the lead-silicon composite bipolar battery provided by the invention, the current density distribution is uniform during working,the hot spots on the surface of a pole plate are uniformly distributed, the heat management performance of the battery is better than that of the existing storage battery, and the acid corrosion resistance of a silicon wafer is strong. Compared with an existing lead-acid storage battery, the lead consumption of the lead-silicon composite bipolar battery with the same capacity can be reduced by about 40%. Under the same use condition (80%-100% DOD), the cycle life can be prolonged by 2-5 times.

Description

technical field [0001] The invention relates to the technical field of storage batteries, in particular to a lead-silicon composite bipolar battery. Background technique [0002] Lead storage battery is a very important battery system. The advantage of lead storage battery is that the electromotive force is relatively stable during discharge. The disadvantage is that it has small specific energy and strong corrosion to the environment. The working voltage of lead storage battery is stable, the operating temperature and current range are wide, and it can be charged. Discharge for hundreds of cycles, good storage performance, and low cost, so it is widely used. [0003] As a chemical power source with mature technology, lead-acid battery has the characteristics of low cost, good versatility, wide application, good floating charge performance, and good high and low temperature performance. Lead-acid battery is widely used in power communication, energy storage, starting, tracti...

Claims

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Application Information

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IPC IPC(8): H01M10/12H01M4/66H01M4/68H01M4/14H01M2/02H01M2/08H01M50/10H01M50/145H01M50/507
CPCY02E60/10Y02P70/50
Inventor 路俊斗刘遥魏士洋
Owner ZHAOQING LEOCH BATTERY TECH
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