CN106848407A - A kind of alkaline battery electrolyte for rechargeable alkaline electrochemical cell - Google Patents
A kind of alkaline battery electrolyte for rechargeable alkaline electrochemical cell Download PDFInfo
- Publication number
- CN106848407A CN106848407A CN201710106385.3A CN201710106385A CN106848407A CN 106848407 A CN106848407 A CN 106848407A CN 201710106385 A CN201710106385 A CN 201710106385A CN 106848407 A CN106848407 A CN 106848407A
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- CN
- China
- Prior art keywords
- electrochemical cell
- electrolyte
- alkaline
- potassium hydroxide
- cell according
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/056—Accumulators with non-aqueous electrolyte characterised by the materials used as electrolytes, e.g. mixed inorganic/organic electrolytes
- H01M10/0564—Accumulators with non-aqueous electrolyte characterised by the materials used as electrolytes, e.g. mixed inorganic/organic electrolytes the electrolyte being constituted of organic materials only
- H01M10/0566—Liquid materials
- H01M10/0568—Liquid materials characterised by the solutes
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/056—Accumulators with non-aqueous electrolyte characterised by the materials used as electrolytes, e.g. mixed inorganic/organic electrolytes
- H01M10/0564—Accumulators with non-aqueous electrolyte characterised by the materials used as electrolytes, e.g. mixed inorganic/organic electrolytes the electrolyte being constituted of organic materials only
- H01M10/0566—Liquid materials
- H01M10/0567—Liquid materials characterised by the additives
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/24—Alkaline accumulators
- H01M10/26—Selection of materials as electrolytes
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/4235—Safety or regulating additives or arrangements in electrodes, separators or electrolyte
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Inorganic Chemistry (AREA)
- Battery Electrode And Active Subsutance (AREA)
Abstract
The invention discloses a kind of alkaline battery electrolyte for rechargeable alkaline electrochemical cell, electrolyte includes potassium hydroxide and lithium hydroxide, potassium hydroxide：The mol ratio of lithium hydroxide is 1：2.5‑3.7；The molar concentration that potassium hydroxide and lithium hydroxide reach balance is poor, poor with the potassium hydroxide and lithium hydroxide molar concentration being present in electrolyte, between gap be not more than 0.25 mole；The pH of electrolyte is 10 16.Electrochemical cell of the present invention can be electrically charged/discharge at least 100 circulations, or even more many, and it remains in that acceptable Performance Characteristics.Gained alkali electrochemical battery and alkaline battery show improved Performance Characteristics, because the passivation of the significant suppression Zn of electrolyte composition, and can also be used for this role in other battery chemistries.
Description
Technical field
The present invention relates to cell electrolyte and a kind of alkaline battery electrolyte for rechargeable alkaline electrochemical cell.
The content of the invention
The object of the invention is exactly to make up the defect of prior art, there is provided one kind is for rechargeable alkaline electrochemistry electricity
The alkaline battery electrolyte in pond.
The present invention is achieved by the following technical solutions：
A kind of alkaline battery electrolyte for rechargeable alkaline electrochemical cell,
Electrolyte includes potassium hydroxide and lithium hydroxide, potassium hydroxide：The mol ratio of lithium hydroxide is 1：2.5-3.7；
The molar concentration that potassium hydroxide and lithium hydroxide reach balance is poor, with the potassium hydroxide and hydroxide being present in electrolyte
Lithium molar concentration is poor, between gap be not more than 0.25 mole；
The pH of electrolyte is 10-16.
Preferred potassium hydroxide：The mol ratio of lithium hydroxide is 1：3.
Electrolyte contains the water of 50-95 weight %, and the pH of electrolyte is 7-16.
The electrolyte, is preferably applied to rechargeable MnZn electrochemical cell.
A kind of electrochemical cell, including the described alkaline battery electrolyte for rechargeable alkaline electrochemical cell,
Also include by anode, and active material of positive electrode is conductive or semi-conducting material；Also include negative electrode, intensifying current additive, filler
And additive；Electrode includes supporting construction；
The active material of positive electrode can be metal, and metal oxide, metal alloy is a kind of or many in metallic composite
Kind.
The active material of positive electrode component can be Si, Sn, Al, Ti, Mg, Fe, Bi, Zn, Sb, Ni, Pb, Li, Zr, Hg,
One or more in Cd, Cu, Li, Ce, mischmetal, the alloy of listed metal, hydride.
The active material of positive electrode component is preferably Cd, Zn, Fe and NiMH.
The active material of positive electrode can be sintered.
The intensifying current additive is carbon black, graphite, Graphene；The additive is Teflon section bar material polytetrafluoroethyl-nes
Alkene, the plate that supporting construction is made up of the material of metal or metal alloy, net, rod.
The metal or metal alloy is conductive, but what this was not required, and supporting construction may have difference
Electric conductivity.
Electrolyte also can be used for the alkali electrochemical battery of rechargeable type and alkaline electro comprising commonly known in the art
Other component in pond, in addition to required LiOH to KOH, it is necessary to needed for being present in or preferred concentration and mol ratio
Rate.
It is an advantage of the invention that：Electrochemical cell of the present invention can be electrically charged/discharge at least 100 circulations, or even more
Many, it remains in that acceptable Performance Characteristics.It is special that gained alkali electrochemical battery and alkaline battery show improved performance
Property, because the passivation of the significant suppression Zn of electrolyte composition, and can also be used for this role in other battery chemistries.
Specific embodiment
A kind of alkaline battery electrolyte for rechargeable alkaline electrochemical cell,
Electrolyte includes potassium hydroxide and lithium hydroxide, potassium hydroxide：The mol ratio of lithium hydroxide is 1：3.1；
The molar concentration that potassium hydroxide and lithium hydroxide reach balance is poor, with the potassium hydroxide and hydroxide being present in electrolyte
Lithium molar concentration is poor, between gap be not more than 0.25 mole；
Preferred potassium hydroxide：The mol ratio of lithium hydroxide is 1：3.
Electrolyte contains the water of 80 weight %, and the pH of electrolyte is 12.
The electrolyte, is preferably applied to rechargeable MnZn electrochemical cell.
A kind of electrochemical cell, including the described alkaline battery electrolyte for rechargeable alkaline electrochemical cell,
Also include by anode, and active material of positive electrode is conductive or semi-conducting material；Also include negative electrode, intensifying current additive, filler
And additive；Electrode includes supporting construction；
The active material of positive electrode can be metal, and metal oxide, metal alloy is a kind of or many in metallic composite
Kind.
The active material of positive electrode component can be Si, Sn, Al, Ti, Mg, Fe, Bi, Zn, Sb, Ni, Pb, Li, Zr, Hg,
One or more in Cd, Cu, Li, Ce, mischmetal, the alloy of listed metal, hydride.
The active material of positive electrode component is preferably Cd, Zn, Fe and NiMH.
The active material of positive electrode can be sintered.
The intensifying current additive is carbon black, graphite, Graphene；The additive is Teflon section bar material polytetrafluoroethyl-nes
Alkene, the plate that supporting construction is made up of the material of metal or metal alloy, net, rod.
Claims (10)
1. a kind of alkaline battery electrolyte for rechargeable alkaline electrochemical cell, it is characterised in that：
Electrolyte includes potassium hydroxide and lithium hydroxide, potassium hydroxide：The mol ratio of lithium hydroxide is 1：2.5-3.7；
The molar concentration that potassium hydroxide and lithium hydroxide reach balance is poor, with the potassium hydroxide and hydroxide being present in electrolyte
Lithium molar concentration is poor, between gap be not more than 0.25 mole；
The pH of electrolyte is 10-16.
2. the alkaline battery electrolyte for rechargeable alkaline electrochemical cell according to claim 1, its feature exists
In：Preferred potassium hydroxide：The mol ratio of lithium hydroxide is 1：3.
3. the alkaline battery electrolyte for rechargeable alkaline electrochemical cell according to claim 1, its feature exists
In：Electrolyte contains the water of 50-95 weight %, and the pH of electrolyte is 7-16.
4. the alkaline battery electrolyte for rechargeable alkaline electrochemical cell according to claim 1, its feature exists
In：The electrolyte, is preferably applied to rechargeable MnZn electrochemical cell.
5. a kind of electrochemical cell, it is characterised in that including described in claim 1 for rechargeable alkaline electrochemical cell
Alkaline battery electrolyte, also including by anode, and active material of positive electrode is conductive or semi-conducting material；Also include negative electrode, electricity
Stream enhancing additive, filler and additive；Electrode includes supporting construction.
6. electrochemical cell according to claim 5, it is characterised in that：The active material of positive electrode can be metal, gold
Category oxide, metal alloy, one or more in metallic composite.
7. electrochemical cell according to claim 6, it is characterised in that：The active material of positive electrode component can be Si,
Sn, Al, Ti, Mg, Fe, Bi, Zn, Sb, Ni, Pb, Li, Zr, Hg, Cd, Cu, Li, Ce, mischmetal, the alloy of listed metal, hydrogen
One or more in compound.
8. electrochemical cell according to claim 7, it is characterised in that：The active material of positive electrode component is preferably
Cd, Zn, Fe and NiMH.
9. electrochemical cell according to claim 5, it is characterised in that：The active material of positive electrode can be sintered.
10. electrochemical cell according to claim 5, it is characterised in that：The intensifying current additive is carbon black, stone
Ink, Graphene；The additive be Teflon section bar material polytetrafluoroethylene (PTFE), supporting construction by metal or metal alloy material system
Into plate, net, rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710106385.3A CN106848407A (en) | 2017-02-27 | 2017-02-27 | A kind of alkaline battery electrolyte for rechargeable alkaline electrochemical cell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710106385.3A CN106848407A (en) | 2017-02-27 | 2017-02-27 | A kind of alkaline battery electrolyte for rechargeable alkaline electrochemical cell |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106848407A true CN106848407A (en) | 2017-06-13 |
Family
ID=59134269
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710106385.3A Pending CN106848407A (en) | 2017-02-27 | 2017-02-27 | A kind of alkaline battery electrolyte for rechargeable alkaline electrochemical cell |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106848407A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS553135A (en) * | 1978-06-20 | 1980-01-10 | Matsushita Electric Ind Co Ltd | Nickel-zinc battery |
| CN1372703A (en) * | 1999-09-03 | 2002-10-02 | 能源投资有限公司(加拿大) | Rechargeable nicke-zinc cells |
| JP2003100341A (en) * | 2001-09-27 | 2003-04-04 | Sanyo Electric Co Ltd | Alkaline storage battery |
| CN1472838A (en) * | 2002-08-02 | 2004-02-04 | 周良才 | Nickel-cadmium cell alkali liquor producing device and producing method for alkali liquor |
| CN101034762A (en) * | 2006-02-01 | 2007-09-12 | 鲍尔热尼系统公司 | Electrolyte composition for nickel-zinc batteries |
-
2017
- 2017-02-27 CN CN201710106385.3A patent/CN106848407A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS553135A (en) * | 1978-06-20 | 1980-01-10 | Matsushita Electric Ind Co Ltd | Nickel-zinc battery |
| CN1372703A (en) * | 1999-09-03 | 2002-10-02 | 能源投资有限公司(加拿大) | Rechargeable nicke-zinc cells |
| JP2003100341A (en) * | 2001-09-27 | 2003-04-04 | Sanyo Electric Co Ltd | Alkaline storage battery |
| CN1472838A (en) * | 2002-08-02 | 2004-02-04 | 周良才 | Nickel-cadmium cell alkali liquor producing device and producing method for alkali liquor |
| CN101034762A (en) * | 2006-02-01 | 2007-09-12 | 鲍尔热尼系统公司 | Electrolyte composition for nickel-zinc batteries |
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Application publication date: 20170613 |
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| RJ01 | Rejection of invention patent application after publication |