High-rate lead-acid storage battery built-in electrolyte formula and liquid injection process thereof

A lead-acid battery and electrolyte technology, applied in the field of electrochemical batteries, to achieve the effect of easy-to-obtain raw materials, simple addition process, and eliminate the phenomenon of over-dissolution of lead sulfate

Inactive Publication Date: 2019-04-05
SHUANGDENG GRP
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The present invention mainly aims at the problem that the electrolyte in the prior art causes the plate to generate lead sulfate, and proposes a high-rate lead

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  • High-rate lead-acid storage battery built-in electrolyte formula and liquid injection process thereof

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Embodiment Construction

[0017] The high-rate lead-acid battery has a built-in electrolyte formula and its injection process. It is based on the conventional electrolyte and adds 0.9 to 1.6% of sulfate substances by mass percentage. The sulfate substances are composed of 0.6-1.0% potassium sulfate and 0.3-0.6% stannous sulfate. In order to verify the technical effect of the present invention, it is now described by three examples, and the specific addition amount is shown in the table below.

[0018] Table of Examples of Adding Sulfate Substances to Conventional Electrolyte

[0019]

[0020] According to the embodiment listed in the above table, the electrolyte is configured respectively, and its liquid injection process is carried out according to the following steps:

[0021] a. mix

[0022] The sulfate substances are added to the conventional electrolyte used, uniformly mixed under the condition of 200r / min for at least 10min.

[0023] b. Cool down

[0024] The above-mentioned mixed electrol...

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Abstract

The invention discloses a high-rate lead-acid storage battery built-in electrolyte formula. On the basis of taking a conventional electrolyte, 0.9-1.6% by mass of sulfate substances are added. The invention also discloses a matched liquid injection process, which is carried out according to the following steps of: adding the sulfate substances into the taken conventional electrolyte, and mixing for at least 5 minutes under the condition of 100-300 r/min. Taking out the mixed electrolyte and carrying out cooling treatment at the temperature of 0-10 DEG C; and finally, carrying out vacuum liquidinjection under the condition of vacuum degree of -40-60 kpa. The added sulfate plays a role in inhibiting the growth speed of large lead sulfate particles. Heat generated by chemical combination canbe counteracted by injecting the low-temperature electrolyte, the purpose of controlling dissolving balance of the lead sulfate in the electrolyte is achieved, the solubility of the lead sulfate is effectively reduced, and as a result, generation of large particles of the lead sulfate is reduced. The two measures can ensure that the matched lead-acid storage battery does not generate the dendritic crystal short circuit problem in the use period.

Description

technical field [0001] The invention belongs to the technical field of electrochemical batteries. Specifically, the invention relates to an electrolyte solution for a lead-acid storage battery, in particular to a formula of a built-in electrolyte for a high-rate lead-acid storage battery. The invention also relates to a matched liquid injection process. Background technique [0002] With the development of the Internet age, the types and quantities of supporting IT equipment have also increased rapidly. IT equipment is also an energy-consuming device. The electricity used is mainly obtained from the national public grid. In order to ensure safe operation, energy storage equipment with a corresponding capacity must be configured. The energy storage equipment currently in use is the first choice for lead-acid batteries. Due to the transportation quality of IT equipment The state and energy consumption characteristics are completely different from other power equipment, so the...

Claims

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Application Information

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IPC IPC(8): H01M10/08H01M10/12
CPCH01M10/08H01M10/12Y02E60/10Y02P70/50
Inventor 李静树荣亮徐冬明陈荣华杨宝峰楼志强
Owner SHUANGDENG GRP
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