a rechargeable battery

A zinc battery, charging and discharging technology, applied in battery electrodes, alkaline storage batteries, secondary battery manufacturing, etc., can solve problems such as irreversibility of copper-zinc batteries

Active Publication Date: 2015-12-09
常州孚达新能源科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The present invention proposes a rechargeable denier copper-zinc battery system to solve the irreversible problem of copper-zinc batteries

Method used

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Examples

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Embodiment 1

[0015] This embodiment describes a kind of metal copper as the positive electrode current collector, copper sulfate solution as the positive electrode electrolyte, zinc sheet as the negative electrode current collector, zinc sulfate as the negative electrode electrolyte, lithium ions as the conductive ion, and NASICON type lithium titanium aluminum phosphate as the Copper-zinc reversible battery with separator.

[0016] 【1】Positive electrode: Prepare 15wt% CuSO 4 +15wt%Li 2 SO 4 An aqueous solution, a copper sheet with a thickness of 0.5 mm was immersed in the solution as a positive electrode.

[0017] [2] Negative electrode: Prepare 15wt% ZnSO 4 +15wt%Li 2 SO 4 An aqueous solution in which a zinc sheet with a thickness of 0.5mm is immersed in the solution as a negative electrode.

[0018] 【3】Diaphragm: Li with a thickness of 0.3mm 1.3 Al 0.3 Ti 1.7 (PO 4 ) 3 Ceramics.

[0019] The above-mentioned positive and negative electrodes and separators are assembled in an ...

Embodiment 2

[0021] This embodiment describes a carbon brush as the positive electrode collector, the mixed solution of copper acetate and copper chloride as the positive electrode electrolyte, the zinc sheet as the negative electrode collector, the mixed solution of zinc formate and zinc pinate as the negative electrode electrolyte, and the sodium ion Copper-zinc reversible battery with conductive ions and perovskite sintered ceramics as separator.

[0022] 【1】Positive electrode: Prepare 5wt% Cu(CH 3 COO) 2 +10wt%CuCl 2 +5wt%NaH 2 PO 4 An aqueous solution, the carbon brush is immersed in the solution as the positive electrode.

[0023] 【2】Negative electrode: Prepare 2wt% Zn(HCOO) 2 +10wt%Zn(NO 3 ) 2 +10wt%LiNO 3 Water-glycerol (volume ratio 4:1) solution, a zinc sheet with a thickness of 0.5 mm is immersed in the solution as a negative electrode.

[0024] 【3】Diaphragm: Perovskite ceramic sheet with a thickness of 0.3mm.

[0025] The above-mentioned positive and negative electrod...

Embodiment 3

[0027] This embodiment describes a kind of metal copper as positive electrode collector, copper oxalate and copper oxide mixed suspension as positive electrode electrolyte, stainless steel sheet as negative electrode collector, zinc citrate and lithium zincate solution as negative electrode electrolyte, lithium The ions are conductive ions, and the copper-zinc reversible battery is a Garnet-type ceramic as a diaphragm.

[0028] [1] Positive electrode: Mix copper oxalate and copper oxide in a molar ratio of 1:1, add propylene carbonate, dimethyl carbonate, ethyl methyl carbonate (volume ratio 1:1:1) mixed solvent in a ratio of 1:4 , add lithium hexafluorophosphate to make the concentration 1molL -1 , after adding 5wt% polymethyl methacrylate and ball milling, the copper sheet was immersed in the suspension as the positive electrode.

[0029] [2] Negative electrode: take zinc citrate and zinc hydroxide, mix them at a molar ratio of 1:5, add 10wt% lithium hydroxide aqueous solutio...

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Abstract

The invention relates to a copper-zinc battery capable of repeatedly charging and discharging. The copper-zinc battery consists of a positive pole, a negative pole, a diaphragm and a shell, and is characterized in that the positive pole comprises a solution containing a copper compound, and one or more lithium salts or sodium salts and a current collector are contained in the solution; the negative pole comprises a solution containing a zinc compound, and one or more lithium salts or sodium salts and the current collector are contained in the solution; the diaphragm only allows sodium ions or lithium ions to pass. The problem that the copper-zinc battery is irreversible is solved.

Description

technical field [0001] The invention belongs to the field of chemical power sources, and relates to a chemical power source that can be repeatedly charged and discharged. Specifically, the invention relates to a denier type copper-zinc battery that can be charged and discharged. Background technique [0002] As early as 1836, Daniel of England proposed the copper-zinc battery system. Zinc is placed in zinc sulfate solution, copper is placed in copper sulfate solution, and the two electrolyte solutions are connected by salt bridge or ionic membrane, thus forming a Daniel battery. At this time, in the battery, zinc loses electrons and acts as the negative electrode; copper gains electrons and acts as the positive electrode. In junior high school textbooks, the Daniel battery is described as a typical primary battery system, that is, the battery cannot be regenerated by simple charging and discharging. Because it must be used once, the copper-zinc battery is expensive and can...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01M4/36H01M10/04
CPCH01M4/368H01M4/58H01M4/582H01M4/5825H01M10/24H01M10/26H01M10/28Y02E60/10Y02P70/50
Inventor 张汉平杨涛吴欣周贻森杨超
Owner 常州孚达新能源科技有限公司
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