Electrolyte for secondary battery and preparation method thereof

A secondary battery and electrolyte technology, applied in the field of electrolyte, can solve the problems of long internal formation time, impervious formation, and poor uniformity of lead-acid batteries, achieve good battery capacity consistency, improve stability, and solve formation time long effect

Active Publication Date: 2018-02-06
江苏海涛新能源科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, ordinary lead-acid batteries have the defects of lo...

Method used

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  • Electrolyte for secondary battery and preparation method thereof
  • Electrolyte for secondary battery and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] An electrolyte solution for a secondary battery, comprising the following raw materials in parts by weight: 25 parts of acid sulfate, 58 parts of solvent, and 8 parts of additives; Prepared by mixing at a ratio of 2:3; the solvent is water and maleic acid, tetrahydrofurfuryl alcohol, boric acid solution, porphyrin, acrylic acid, dibutyl carbonate, amyl acetate, polyvinylpyrrolidone iodine, triethyl phosphate , one or more compositions in water glass; the additive includes the following raw materials in parts by weight: 4 parts of lithium borate dioxalate, 1 part of ethylene sulfite, 2 parts of sodium chromate, carboxymethyl shell 2 parts polysaccharide, 3 parts sodium selenate, 2 parts potassium clavulanate.

[0019] A method for preparing an electrolyte solution for a secondary battery, comprising the following steps: (1) firstly weigh each raw material according to the above formula, and set aside; (2) then add acid sulfate and a solvent into the reaction kettle in se...

Embodiment 2

[0021] An electrolyte solution for a secondary battery, comprising the following raw materials in parts by weight: 32 parts of acid sulfate, 70 parts of solvent, and 11 parts of additives; the acid sulfate is composed of sodium bisulfate and potassium hydrogen sulfate Prepared by mixing at a ratio of 2:3; the solvent is water and maleic acid, tetrahydrofurfuryl alcohol, boric acid solution, porphyrin, acrylic acid, dibutyl carbonate, amyl acetate, polyvinylpyrrolidone iodine, triethyl phosphate , one or more compositions in water glass; the additive includes the following raw materials in parts by weight: 8 parts of lithium borate dioxalate, 3 parts of ethylene sulfite, 5 parts of sodium chromate, carboxymethyl shell 5 parts polysaccharide, 7 parts sodium selenate, 5 parts potassium clavulanate.

[0022] A method for preparing an electrolyte solution for a secondary battery, comprising the following steps: (1) First, weigh each raw material according to the above formula, and ...

Embodiment 3

[0024] An electrolyte solution for a secondary battery, comprising the following raw materials in parts by weight: 29 parts of acid sulfate, 62 parts of solvent, and 10 parts of additive; Prepared by mixing at a ratio of 2:3; the solvent is water and maleic acid, tetrahydrofurfuryl alcohol, boric acid solution, porphyrin, acrylic acid, dibutyl carbonate, amyl acetate, polyvinylpyrrolidone iodine, triethyl phosphate , one or more compositions in water glass; the additive includes the following raw materials in parts by weight: 6 parts of lithium borate dioxalate, 2 parts of ethylene sulfite, 2.5 parts of sodium chromate, carboxymethyl shell 3 parts polysaccharide, 4.6 parts sodium selenate, 3.1 parts potassium clavulanate.

[0025] A method for preparing an electrolyte solution for a secondary battery, comprising the following steps: (1) firstly weigh each raw material according to the above formula, and set aside; (2) then add acid sulfate and solvent into the reaction kettle ...

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Abstract

The invention discloses electrolyte for a secondary battery. The electrolyte is prepared from the following raw materials including acid sulfate, solvents and additives, wherein the acid sulfate is prepared by mixing sodium hydrogensulfate and potassium hydrogensulfate; the solvents are one kind of materials or a composition of a plurality of kinds of materials from water, maleic acid, tetrahydrofurfuryl alcohol, a boric acid solution, porphyrin, acrylic acid, dibutyl carbonate, isoamyl acetate, povidon iodine, triethyl phosphate and water glass; the additives are prepared from the following raw materials including lithium borate oxalate, glycol sulfite, sodium chromate, carboxymethyl chitosan, sodium selenite and potassium clavulanate. The electrolyte for the secondary battery has the advantages that each performance completely conforms to the national standard; the defects of long formation time, non-thorough formation and poor uniformity in the ordinary lead acid storage battery canbe successfully overcome; the stability of the battery is greatly improved.

Description

technical field [0001] The invention relates to an electrolyte, in particular to an electrolyte for a secondary battery and a preparation method thereof. Background technique [0002] Secondary batteries, also known as rechargeable batteries or storage batteries, refer to batteries that can be activated by charging the active material after the battery is discharged and continue to be used. Using the reversibility of chemical reactions, a new battery can be assembled, that is, after a chemical reaction is converted into electrical energy, the chemical system can be repaired with electrical energy, and then converted into electrical energy by chemical reaction, so it is called a secondary battery ( Rechargeable Battery). The most common secondary battery is the lead battery, which is used in a wide variety of applications. However, ordinary lead-acid batteries have the defects of long internal formation time, impervious formation, and poor uniformity. Therefore, the presen...

Claims

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Application Information

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IPC IPC(8): H01M10/08H01M10/12
CPCH01M10/08H01M10/121Y02E60/10Y02P70/50
Inventor 吴磊
Owner 江苏海涛新能源科技有限公司
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