Long life high capacity bipolar-type pole plate lead acid battery for electric automobile

A technology of lead-acid batteries and lead-acid batteries, which is applied to electric vehicles, lead-acid batteries, electrodes of lead-acid batteries, etc. It can solve the problems of high heat in battery cells, reduced battery capacity, and damaged batteries, so as to reduce the possibility and Occurrence rate, effect of increasing discharge depth

Inactive Publication Date: 2008-06-18
夏振明
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the existing bipolar pole plate has three distinct layers during production and five distinct layers during use, which does not solve this problem. On the contrary, because the bipolar pole plate batteries are assembled in series circuits, one of the battery cells produces sulfuric acid When salinization occurs, the entire battery will be scrapped, so the problem of sulfated scrap batteries in existing bipolar lead-acid batteries is more serious than that of ordinary lead-acid batteries
[0010] 4. During the battery discharge process, due to the inconsistency of the internal environment of each unit battery system, a certain unit battery may first form a high resistance. Such a high resistance prevents other battery units from discharging and reduces the entire battery capacity. It is also possible Make the battery cell overheat and damage the whole battery

Method used

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  • Long life high capacity bipolar-type pole plate lead acid battery for electric automobile
  • Long life high capacity bipolar-type pole plate lead acid battery for electric automobile
  • Long life high capacity bipolar-type pole plate lead acid battery for electric automobile

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] Embodiment one: bipolar polar plate (10)

[0042] See Figure 2, Figure 3, Figure 4 , the bipolar plate (10) is composed of a substrate (11), a conductive pin (18), a conductive column (14), a positive active material layer (12), a negative active material layer (13) and a plastic frame (15).

[0043] On the die-casting machine, extrude the parts with conductive pins (18), conductive columns (14), and substrates (11) at one time, for the convenience of compounding plastic frame (15) around the substrate (11), on the substrate (11) ) to set up a plurality of compound plastic reinforcing holes (17) around. The thickness of the substrate (11) should be as thin as possible if the process allows. The recommended thickness is 1-0.1mm. The material of the substrate (11) can be any metal with conductivity and formability. Lead, titanium, stainless steel and lead are recommended. alloy, titanium alloy material. In order to adapt to the corrosive environment of these materials...

Embodiment 2

[0044] Embodiment 2: bipolar pole plate (10).

[0045]The second embodiment of the bipolar pole plate (10) is: the conductive needle (18) is manufactured independently, and the material is titanium or titanium alloy, stainless steel, and other metals such as copper and aluminum are also desirable. Place the conductive needle (18) in the mold, die-cast the base plate (11) and the conductive column (14) with molten metal, and die-cast the conductive pin (18), the base plate (11) and the conductive column (14) into a whole, and the molten metal recommends With lead, titanium or their alloys and stainless steel, implementation process is with embodiment one thereafter.

Embodiment 3

[0046] Embodiment three: bipolar plate (10)

[0047] The third embodiment of the bipolar pole plate (10) is: after the positive side of the substrate (11) with conductive pins (18) is modified with an inorganic conductive layer, that is the composite plastic frame (15). A modification of an organic conductive layer. Other implementation processes are the same as in Embodiment 1.

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Abstract

The invention provides a dual-pole polar plate lead-acid accumulator with long service life and high capacity used for an electric vehicle. A polar plate group consists of a dual-pole polar plate, an upper end polar plate, a lower end polar plate and a clapboard; the polar plate group is arranged in a battery frame which presses the polar plate group and gives a suitable pressure to active matter. The invention is technically characterized in that one surface of an anode of a baseplate of the dual-pole polar plate is provided with a conductive needle and one surface of a cathode is provided with a conductive column; furthermore, electrode modification is carried out for the baseplate and the conductive needle. After the modification, the specific capacity of the battery is 45-50Wh/kg, which is improved by 20%-30% compared with the existing normal battery. The design service life is 3-8 years, which is improved 2-3 times compared with the normal battery. The battery is mainly used for electric vehicles, electric bicycles, etc., as power supplies, and can be also used for all sites where the existing normal lead-acid batteries are applied.

Description

Technical field: [0001] The invention relates to a lead-acid storage battery, which is mainly used as a power source for electric vehicles such as electric vehicles, electric bicycles and electric motorcycles. Background technique: [0002] Since the invention of automobiles, cars have become people's main personal means of transportation, but the high pollution of fuel vehicles and the depletion of global oil resources have forced humans to seek a new means of transportation that is environmentally friendly and sustainable, so electric vehicles Become the first choice. According to the current development situation, it is an inevitable trend for electric vehicles to replace fuel vehicles as the main personal passenger tools in big cities. Among the four major components of electric vehicles, the technology of the body, the motor and the control system, and the fast charging system are all mature, and only the technology of the fourth part, the battery, has not passed the te...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M10/12H01M4/14H01M4/68H01M2/26H01M2/00B60L11/18H01M50/10H01M50/183H01M50/531
CPCY02T10/7016Y02E60/126Y02E60/10Y02T10/70Y02P70/50
Inventor 夏振明
Owner 夏振明
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