CN101924253A - Electrolyte additive of novel nickel-metal hydride secondary battery - Google Patents
Electrolyte additive of novel nickel-metal hydride secondary battery Download PDFInfo
- Publication number
- CN101924253A CN101924253A CN200910099669XA CN200910099669A CN101924253A CN 101924253 A CN101924253 A CN 101924253A CN 200910099669X A CN200910099669X A CN 200910099669XA CN 200910099669 A CN200910099669 A CN 200910099669A CN 101924253 A CN101924253 A CN 101924253A
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- China
- Prior art keywords
- mucic acid
- salt
- nickel
- electrolyte
- secondary cell
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- 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
Abstract
The invention provides an electrolyte additive of a novel nickel-metal hydride secondary battery, which is characterized by comprising reducing mucic acid and one or more than one of mucic acid monosodium salt, mucic acid disodium salt, mucic acid monolithium salt, mucic acid dilithium salt, mucic acid monopotassium salt and mucic acid dipotassium salt of alkali metal salt thereof. The mass percentage concentration of the electrolyte is within the range of 0.05-7%. The additive participates in the electrode reaction and can store a part of electric energy. The invention has the characteristics of low cost, low energy consumption, environmental protection and the like.
Description
Technical field
What the present invention relates to is a kind of electrolysis additive of the electrolysis additive that is used for the battery technology field, particularly a kind of nickel-hydrogen secondary cell.
Background technology
Along with economy constantly develops, must cause increasing the weight of of depletion of natural resources, environmental pollution and global greenhouse effects such as oil, coal, the human equilibrium relation that must hold between economic growth, environmental protection and the energy resource supply.At present the consumption figure in energy every year is converted to oil and is about 8,000,000,000 tons in the world, and wherein 90% is fossil fuel.By the present consumption speed in energy every year in the world, greatly just can be exhausted after to 200 about 100 years.The comprehensive high-efficiency development and utilization of new forms of energy, power-saving technology and green technology has become very urgent subject.
Nickel-hydrogen secondary cell is one of present most widely used secondary cell, its energy density is 1.5～2.0 times of nickel-cadmium cell, volume energy density can be suitable with lithium ion battery, power density is higher, be fit to discharging and recharging of big electric current, non-environmental-pollution has energy density height, memory-less effect, overcharging resisting and crosses and put better performances, advantage such as nuisanceless.Along with industrialization, the scale of nickel-hydrogen secondary cell, its production cost reduces greatly, and presents tempting market prospects in fields such as hybrid electric vehicles.But nickel-hydrogen secondary cell still needs constantly to develop to high power capacity, power type, miniaturization, and the exploitation of high-performance nickel-hydrogen secondary cell material has become a research focus of current energy field.
In influencing numerous factors of nickel-hydrogen secondary cell performance, except the character of electrode material itself, electrolyte also plays important effect.Electrolyte is as one of chief component of battery, its composition, concentration and consumption all have a significant impact the performance of battery, for nickel-hydrogen secondary cell, because its mechanism of action is similar substantially to ickel-cadmium cell, thereby in general application, electrolyte has still been continued to use traditional composition and concentration: 6mol/L potassium hydroxide solution (wherein adding a spot of lithium hydroxide).Studies show that some additives of adding an amount of in electrolyte help improving the performance of battery.
Summary of the invention
The objective of the invention is in order to improve the charge/discharge capacity of nickel-hydrogen secondary cell, and a kind of nickel-hydrogen secondary cell electrolysis additive that provides.
Technical scheme of the present invention is: the nickel-hydrogen secondary cell electrolysis additive, it is characterized in that: it is by reductive acid mucic acid and alkali metal salt mucic acid list sodium salt thereof, the mucic acid disodium salt, mucic acid list lithium salts, the mucic acid dilithium salt, the mucic acid monopotassium salt, one or more compositions in the mucic acid di-potassium.Mass percent concentration in electrolyte is in 0.05～7% scope.
Electrolysis additive of the present invention is dissolved in the conventional nickel-hydrogen secondary cell electrolyte, by ordinary production prepared nickel-hydrogen secondary cell.Battery is in when normally discharging and recharging, and additive has been participated in the electrochemical reaction of battery, can store and the release portion electric energy, can improve the charge/discharge capacity of nickel-hydrogen secondary cell.
Be examples more of the present invention below,, and should do not regard as any aspect is limited to some extent only as illustration.Obviously, for a person skilled in the art, under the prerequisite of spirit and scope that do not depart from disclosure and rights and interests claimed range, can and discuss the present invention is improved and deepens according to aforementioned disclosure.
Embodiment:
Embodiment 1:
The mucic acid that adopts is done electrolysis additive, and used battery nickel-hydrogen secondary cell is an open cell, and it just very covers the spherical β-Ni (OH) of cobalt
2, negative pole is a hydrogen-storage alloy.Electrolyte specifically composed as follows: mucic acid: potassium hydroxide: water=0.08: 37.10: 65.54.Consist of potassium hydroxide with electrolyte: the open battery of the MH-Ni of water=37.18: 65.54 relatively, its charge/discharge capacity obviously improves.
Embodiment 2:
The mucic acid monopotassium salt that adopts is done electrolysis additive, and used battery nickel-hydrogen secondary cell is an AA type battery, and it just very covers the spherical β-Ni (OH) of cobalt
2, negative pole is a hydrogen-storage alloy.The electrolyte that in battery case, injects specifically composed as follows: mucic acid potassium: potassium hydroxide: lithium hydroxide: water=0.08: 34.00: 1.58: 66.54.Consist of potassium hydroxide with electrolyte: lithium hydroxide: the AA type nickel-hydrogen secondary cell of water=34.08: 1.58: 66.54 relatively, its charge/discharge capacity increases.
Claims (1)
1. nickel-hydrogen secondary cell electrolysis additive, it is characterized in that: it is by reductive acid mucic acid and alkali metal salt mucic acid list sodium salt thereof, mucic acid disodium salt, mucic acid list lithium salts, the mucic acid dilithium salt, mucic acid monopotassium salt, one or more compositions in the mucic acid di-potassium.Mass percent concentration in electrolyte is in 0.05～7% scope.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910099669XA CN101924253A (en) | 2009-06-15 | 2009-06-15 | Electrolyte additive of novel nickel-metal hydride secondary battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910099669XA CN101924253A (en) | 2009-06-15 | 2009-06-15 | Electrolyte additive of novel nickel-metal hydride secondary battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101924253A true CN101924253A (en) | 2010-12-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910099669XA Pending CN101924253A (en) | 2009-06-15 | 2009-06-15 | Electrolyte additive of novel nickel-metal hydride secondary battery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101924253A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102800899A (en) * | 2012-08-30 | 2012-11-28 | 上海锦众信息科技有限公司 | Preparation method of electrolyte of nickel hydrogen battery |
| WO2013034977A1 (en) * | 2011-09-07 | 2013-03-14 | Solaris Holdings Limited | Method of increasing secondary power source capacity |
-
2009
- 2009-06-15 CN CN200910099669XA patent/CN101924253A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013034977A1 (en) * | 2011-09-07 | 2013-03-14 | Solaris Holdings Limited | Method of increasing secondary power source capacity |
| JP2014529171A (en) * | 2011-09-07 | 2014-10-30 | ジャレド ホールディングス リミテッド | How to increase secondary power capacity |
| US9799923B2 (en) | 2011-09-07 | 2017-10-24 | Solaris Holdings Limited | Method of increasing secondary power source capacity |
| JP2018060795A (en) * | 2011-09-07 | 2018-04-12 | ジャレド ホールディングス リミテッド | Method of increasing secondary power source capacity |
| CN102800899A (en) * | 2012-08-30 | 2012-11-28 | 上海锦众信息科技有限公司 | Preparation method of electrolyte of nickel hydrogen battery |
| CN102800899B (en) * | 2012-08-30 | 2016-11-09 | 上海锦众信息科技有限公司 | A kind of preparation method of electrolyte of nickel hydrogen battery |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20101222 |