CN105098247B - Disposable lithium-battery nonaqueous electrolytic solution and disposable lithium-battery - Google Patents
Disposable lithium-battery nonaqueous electrolytic solution and disposable lithium-battery Download PDFInfo
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- CN105098247B CN105098247B CN201510417224.7A CN201510417224A CN105098247B CN 105098247 B CN105098247 B CN 105098247B CN 201510417224 A CN201510417224 A CN 201510417224A CN 105098247 B CN105098247 B CN 105098247B
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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
- H01M10/0569—Liquid materials characterised by the solvents
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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
- H01M10/052—Li-accumulators
- H01M10/0525—Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries
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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
- H01M2300/00—Electrolytes
- H01M2300/0017—Non-aqueous electrolytes
- H01M2300/0025—Organic electrolyte
- H01M2300/0028—Organic electrolyte characterised by the solvent
- H01M2300/0037—Mixture of solvents
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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 present invention relates to a kind of disposable lithium-battery nonaqueous electrolytic solutions, including lithium salts, high-flash low melting point solvent and low viscosity solvent, the high-flash low melting point solvent includes at least one of propene carbonate, dimethyl methyl phosphonate, methylphosphonic acid diethylester, diethyl ethylphosphate, ethylphosphonic acid dimethyl ester and gamma-butyrolacton, and the flash-point of the high-flash low melting point solvent is 60 DEG C or more and fusing point is 40 DEG C or less；The low viscosity solvent includes glycol dimethyl ether, diethylene glycol dimethyl ether, ethylene glycol methyl ether, 1, at least one of 3- dioxolanes, tetrahydrofuran, methyl acetate, ethyl acetate, propyl acetate, methyl propionate, ethyl propionate and propyl propionate, the viscosity of the low viscosity solvent are 1mPas or less.The invention further relates to a kind of disposable lithium-batteries.Disposable lithium-battery nonaqueous electrolytic solution of the invention has the advantages that security performance height, good high-temperature storage performance and low temperature performance.
Description
Technical field
The present invention relates to battery technology fields, in particular to disposable lithium-battery nonaqueous electrolytic solution and disposable lithium-battery.
Background technique
Disposable lithium-battery has many advantages, such as that capacity is high, self-discharge rate is extremely low, electric discharge is gentle and storage life is long, thus its city
Field demand constantly increases, and is gradually replacing other disposable batteries such as traditional alkali manganese, zinc silver oxide.
But safety issue existing for disposable lithium-battery is always the major issue that application is concerned about.Especially current one
All containing a large amount of inflammable ethers in the electrolyte that secondary lithium battery uses, some use the lithium perchlorate of combustion-supporting property as lithium salts,
When battery is under the conditions ofs short circuit, impact, heated etc., battery is likely to explosive combustion, causes unsafe accident.
In order to improve the safety of such battery, United States Patent (USP) such as US6589697, US6924061 are reported with tricresyl phosphate
The phosphates such as methyl esters, triphenyl phosphate, tributyl phosphate reduce the combustibility of electrolyte as electrolysis additive.But this
A little phosphates mostly have high viscosity, are affected to battery performance.Elaborated in CN101079504 patent with more than one
Phosphate improves the safety of lithium battery as solvent, but such solvent viscosity or larger, greatly affected battery
Cryogenic property.
The patent application of Patent No. 200410007943 discloses a kind of battery, comprising: anode；Cathode；And electrolysis
Matter, wherein electrolyte includes the low viscosity solvent of propene carbonate, ethylene carbonate, boiling point less than or equal to 150 DEG C, insatiable hunger
With the carbonic ester and lithium salts of compound；And the content of the propene carbonate is from 5wt% to 20wt%, the carbonic ester
For content from 0.3wt% to 3wt%, the electrolyte includes the conduct of at least one of carbonic acid butadiene ester or vinylene carbonate
Carbonic ester, the low viscosity solvent can be methyl ethyl carbonate or dimethyl carbonate and diethyl carbonate.Disclosed in foregoing invention
Battery has the beneficial effect for improving capacity and cycle characteristics.That is, including carbonic ester above invention discloses a kind of electrolyte, low
Viscosity solution and lithium salts, to improve the battery of battery capacity and cycle performance, the battery is lithium secondary battery.It is above-mentioned special
Although benefit discloses low viscosity solvent is used in electrolyte, its disclosed low viscosity solvent for improve battery capacity and
Cycle performance does not have the technical effect for improving battery safety.
Summary of the invention
The technical problems to be solved by the present invention are: a kind of disposable lithium-battery nonaqueous electrolytic solution that security performance is high is provided,
Further provide for include above-mentioned disposable lithium-battery nonaqueous electrolytic solution disposable lithium-battery.
In order to solve the above-mentioned technical problem, the technical solution adopted by the present invention are as follows:
A kind of disposable lithium-battery nonaqueous electrolytic solution, including lithium salts, high-flash low melting point solvent and low viscosity solvent, the height
Flash-point low melting point solvent includes propene carbonate, dimethyl methyl phosphonate, methylphosphonic acid diethylester, diethyl ethylphosphate, second
The flash-point of at least one of base dimethyl phosphonate and gamma-butyrolacton, the high-flash low melting point solvent is for 60 DEG C or more and molten
Point is 40 DEG C or less；
The low viscosity solvent includes glycol dimethyl ether, diethylene glycol dimethyl ether, ethylene glycol methyl ether, 1,3- dioxy penta
At least one in ring, tetrahydrofuran, methyl acetate, ethyl acetate, propyl acetate, methyl propionate, ethyl propionate and propyl propionate
Kind, the viscosity of the low viscosity solvent is 1mPas or less.
The invention further relates to a kind of disposable lithium-battery, including anode, cathode and between anode and cathode every
Plate, which is characterized in that further include above-mentioned disposable lithium-battery nonaqueous electrolytic solution.
The beneficial effects of the present invention are:
(1) by the design of the ingredient of high-flash low melting point solvent, and 60 DEG C are set by its flash-point on this basis
Above to ensure to have good flame retardant effect, setting fusing point is 40 DEG C or less to ensure to have good low temperature performance,
To obtain good flame retardant effect and good low temperature performance；
(2) by the design of the ingredient of low viscosity solvent, and on this basis by its viscosity be set as 1mPas with
Under, to obtain suitable range of viscosities, thus guarantee the low temperature performance of electrolyte and avoid that high temperature ballooning occurs, into
And safety high caused by improving the high-temperature storage performance of electrolyte and avoiding because of ballooning；
(3) matching design for passing through high-flash low melting point solvent and low viscosity solvent, ensure that electrolyte is with higher
Flash-point and suitable viscosity, therefore the internal resistance also reduced while improving battery security；
(4) ingredient of high-flash low melting point solvent of the invention and low viscosity solvent is good with stability, dielectric constant is high
Property, to directly play the role of to the raising of the high-temperature storage performance of electrolyte and low temperature performance advantageous.
Specific embodiment
To explain the technical content, the achieved purpose and the effect of the present invention in detail, it is explained below in conjunction with embodiment.
The most critical design of the present invention is: passing through the ingredient of high-flash low melting point solvent and low viscosity solvent and gluing
The independent and matching design of degree, flash-point and fusing point, to improve the security performance of disposable lithium-battery, high-temperature storage performance and low temperature
Discharge performance.
The present invention provides a kind of disposable lithium-battery nonaqueous electrolytic solution, including lithium salts, high-flash low melting point solvent and low viscosity
Solvent, the high-flash low melting point solvent include propene carbonate, dimethyl methyl phosphonate, methylphosphonic acid diethylester, ethyl phosphine
At least one of diethyl phthalate, ethylphosphonic acid dimethyl ester and gamma-butyrolacton, the flash-point of the high-flash low melting point solvent are 60
DEG C or more and fusing point be 40 DEG C or less；
The low viscosity solvent includes glycol dimethyl ether, diethylene glycol dimethyl ether, ethylene glycol methyl ether, 1,3- dioxy penta
At least one in ring, tetrahydrofuran, methyl acetate, ethyl acetate, propyl acetate, methyl propionate, ethyl propionate and propyl propionate
Kind, the viscosity of the low viscosity solvent is 1mPas or less.
As can be seen from the above description, the beneficial effects of the present invention are:
(1) by the design of the ingredient of high-flash low melting point solvent, and 60 DEG C are set by its flash-point on this basis
Above to ensure to have good flame retardant effect, setting fusing point is 40 DEG C or less to ensure to have good low temperature performance,
To obtain good flame retardant effect and good low temperature performance；
(2) by the design of the ingredient of low viscosity solvent, and on this basis by its viscosity be set as 1mPas with
Under, to obtain suitable range of viscosities, thus guarantee the low temperature performance of electrolyte and avoid that high temperature ballooning occurs, into
And safety high caused by improving the high-temperature storage performance of electrolyte and avoiding because of ballooning；
(3) electrolyte sudden strain of a muscle with higher ensure that by the matching design of high-flash low melting point solvent and low viscosity solvent
Point and suitable viscosity, therefore the internal resistance also reduced while improving battery security；
(4) ingredient of high-flash low melting point solvent of the invention and low viscosity solvent is good with stability, dielectric constant is high
Property, to directly play the role of to the raising of the high-temperature storage performance of electrolyte and low temperature performance advantageous.
Further, the flash-point of the high-flash low melting point solvent is 90 DEG C or more and fusing point is -40 DEG C hereinafter, described low
The viscosity of viscosity solution is 0.6mPas or less.
Seen from the above description, the flash-point value range of above-mentioned high-flash low melting point solvent and melting range value and low viscous
The range of viscosities value for spending solvent, is preferred numberical range.
Further, the content of the high-flash low melting point solvent is the disposable lithium-battery nonaqueous electrolytic solution gross mass
10%-70%, the content of the low viscosity solvent are the 10%~60% of the disposable lithium-battery nonaqueous electrolytic solution gross mass.It is excellent
Choosing, the content of the high-flash low melting point solvent is the 30%-45% of the disposable lithium-battery nonaqueous electrolytic solution gross mass, institute
The content for stating low viscosity solvent is the 30%~50% of the disposable lithium-battery nonaqueous electrolytic solution gross mass.
It seen from the above description, can be molten to adjust high-flash low melting point by adjusting the content of high-flash low melting point solvent
The flash-point and fusing point of agent, if content is too low (less than 10%), electrolyte flash-point is too low, then without flame retardant effect, battery peace
Full property is deteriorated；If too high levels (are greater than 70%), the internal resistance of cell is excessively high, then low temperature performance is deteriorated；
The content of high-flash low melting point solvent and the relation curve of flash-point are linear rise curve, and the whole of the curve becomes
Change trend are as follows: when content is gradually increased, then flash-point is also gradually got higher ,-；The content and the internal resistance of cell of high-flash low melting point solvent
Relation curve be linear rise curve；Inventor has found after repeatedly researching and developing experiment, when content is 0-10%, curve
Change rate (gradient) is 72, and when content is 10%, flash-point value is 58.2, when content is 10%-30%, the change rate of curve
(gradient) is 154, and when content is 30%-45%, the change rate (gradient) of curve is 253.3, when content is 45%-70%,
The change rate (gradient) of curve is 48, and when content is 70%, flash-point value is 139, when content is 70%-80%, curve
Change rate (gradient) is 55；
It can also be by adjusting the content of low viscosity solvent to adjust the viscosity of low viscosity solvent, if content is too low (small
In 10%), then it is excessively high to be electrolysed fluid viscosity, and low temperature performance is deteriorated；If too high levels (are greater than 60%), electrolyte is in height
Readily volatilized when warm, battery high-temperature inflatable is serious, and high-temperature storage performance and security performance are deteriorated.
The content of low viscosity solvent and the relation curve of low temperature performance are the parabola that Open Side Down；Low viscosity solvent
Content and high temperature ballooning relation curve be linear rise curve；Inventor by repeatedly research and develop experiment after find, when
When content is 0-10%, the change rate (gradient) of curve is -2, when content is 10%, viscosity number 5.31, when content is
When 10%-30%, the change rate (gradient) of curve is -6, when content is 30%-50%, the change rate (gradient) of curve is -
9.6, when content is 50%-60%, the change rate (gradient) of curve is -3.1, when content is 60%, viscosity number 1.88, when
When content is 60%-70%, the change rate (gradient) of curve is -1.5；
Further, the mass values of the high-flash low melting point solvent and low viscosity solvent are 0.5-2；Preferably, institute
The mass values for stating high-flash low melting point solvent and low viscosity solvent are 0.7-1.2.
High-flash low melting point solvent and low viscosity solvent mass ratio and flash-point are to ramp relationship.When ratio is in 0-0.5
When, the change rate of curve is 72；When ratio is in 0.5-0.7, curvilinear motion rate is 33；When ratio is 0.7-1.2, curve becomes
Rate is 11；When ratio is 1.2-2, curvilinear motion rate is 45.High-flash low melting point solvent and low viscosity solvent mass ratio with
Viscosity is to ramp relationship.When ratio is in 0-0.5, the change rate of curve is 5.7；When ratio is in 0.5-0.7, curve becomes
Rate is 2.1；When ratio is 0.7-1.2, curvilinear motion rate is 1.2；When ratio is 1.2-2, curvilinear motion rate is 2.6.
Further, the lithium salts includes one of double fluorine sulfimide lithiums, bis- (trifluoro methylsulfonyl) imine lithiums or two
Kind.
Seen from the above description, lithium salts can be selected from one in double fluorine sulfimide lithiums, bis- (trifluoro methylsulfonyl) imine lithiums
Kind or two kinds, when can avoid using lithium perchlorate as lithium salts, when battery is explosive easy under the conditions ofs short circuit, impact, heated etc.
The deficiency of combustion.
Further, the concentration of the lithium salts is 0.5-2M, it is preferred that the concentration of the lithium salts is 0.7-1.1M.
Seen from the above description, if lithium salt is too low (being less than 0.5M), the conductivity of electrolyte can be reduced, battery
Electrical property reduce；If lithium salt is excessively high (being greater than 2M), the viscosity of electrolyte increases, and lithium ion mobility resistance increases,
The cryogenic property of battery reduces.
Lithium salt and the relation curve of conductivity are parabola, overall variation trend are as follows: with the increasing of lithium salt
Add, conductivity increases, and when lithium salt is more than how much numerical value 1.3, conductivity is reduced with the increase of lithium salt.Lithium salts
The relation curve of concentration and viscosity is overall variation trend are as follows: linear rise；Inventor sends out after repeatedly researching and developing experiment
Existing, when concentration is 0-0.5M, the change rate (gradient) of curve is 22.8, when concentration is 0.5M, conductivity 11.4, and viscosity
Value is 1.85, and when concentration is 0.5-0.0.8M, the change rate (gradient) of curve is 1.8, when concentration is 0.8-1.1M, curve
Change rate (gradient) be 0.6, when concentration is 1.1-2M, the change rate (gradient) of curve is -5.2, when concentration is 2M, conductance
Rate is 12.2, viscosity number 5.88, and when concentration is 2-2.5M, the change rate (gradient) of curve is -19.6.
Embodiment 1:
Make solvent, and the two (high-flash using the propene carbonate and low viscosity glycol dimethyl ether of high-flash low melting point
Low melting point solvent and low viscosity solvent) ratio be 1, double fluorine sulfimide lithium (LiFSI) concentration be 0.8mol/L, prepare this implementation
The disposable lithium-battery nonaqueous electrolytic solution of example.
Embodiment 2:
Make solvent, and the two (high-flash using the propene carbonate and low viscosity glycol dimethyl ether of high-flash low melting point
Low melting point solvent and low viscosity solvent) ratio be 1, bis- (trifluoro methylsulfonyl) imine lithium (LiTFSI) concentration be 0.8mol/L, system
The disposable lithium-battery nonaqueous electrolytic solution of standby the present embodiment.
Embodiment 3:
Made using the propene carbonate of high-flash low melting point, dimethyl methyl phosphonate and low viscosity glycol dimethyl ether molten
Agent, and the two (high-flash low melting point solvent and low viscosity solvent) ratio is 1, double fluorine sulfimide lithium concentrations are 1mol/L, system
The disposable lithium-battery nonaqueous electrolytic solution of standby the present embodiment.
Embodiment 4:
Made using the propene carbonate of high-flash low melting point, dimethyl methyl phosphonate and low viscosity glycol dimethyl ether molten
Agent, and the two (high-flash low melting point solvent and low viscosity solvent) ratio is 0.75, bis- (trifluoro methylsulfonyl) imines lithium concentrations are
1mol/L prepares the disposable lithium-battery nonaqueous electrolytic solution of the present embodiment.
Embodiment 5:
Make solvent using the dimethyl methyl phosphonate of high-flash low melting point and the ethyl propionate of low viscosity, and (height dodges the two
Point low melting point solvent and low viscosity solvent) ratio be 2, double fluorine sulfimide lithium concentrations be 1mol/L, prepare the one of the present embodiment
Secondary non-aqueous electrolyte for lithium cell.
Embodiment 6:
Make solvent using the gamma-butyrolacton of high-flash low melting point and the diethylene glycol dimethyl ether of low viscosity, and (height dodges the two
Point low melting point solvent and low viscosity solvent) ratio be 0.5, double fluorine sulfimide lithium concentrations be 1mol/L, prepare the present embodiment
Disposable lithium-battery nonaqueous electrolytic solution.
Embodiment 7:
Make solvent, and the two (high-flash using the propene carbonate and low viscosity glycol dimethyl ether of high-flash low melting point
Low melting point solvent and low viscosity solvent) ratio is 1, double fluorine sulfimide lithiums and bis- (trifluoro methylsulfonyl) imine lithiums add up concentration
For 1mol/L, the disposable lithium-battery nonaqueous electrolytic solution of the present embodiment is prepared.
Comparative example 1:
Make solvent, and the two (high-flash using the propene carbonate and low viscosity glycol dimethyl ether of high-flash low melting point
Low melting point solvent and low viscosity solvent) ratio be 1, lithium perchlorate concentration be 1mol/L, prepare nonaqueous electrolytic solution.
Comparative example 2: the preparation of electrolyte
Make solvent, and the two (high-flash using the propene carbonate and low viscosity glycol dimethyl ether of high-flash low melting point
Low melting point solvent and low viscosity solvent) ratio be 0.4, double fluorine sulfimide lithium concentrations be 1mol/L, prepare nonaqueous electrolytic solution.
Comparative example 3: the preparation of electrolyte
Make solvent, and the two (high-flash using the propene carbonate and low viscosity glycol dimethyl ether of high-flash low melting point
Low melting point solvent and low viscosity solvent) ratio be 2.5, double fluorine sulfimide lithium concentrations be 1mol/L, prepare nonaqueous electrolytic solution.
Comparative example 4: the preparation of electrolyte
Make solvent, and the two (high-flash using the propene carbonate and low viscosity glycol dimethyl ether of high-flash low melting point
Low melting point solvent and low viscosity solvent) ratio be 1, double fluorine sulfimide lithium concentrations be 0.4mol/L, prepare nonaqueous electrolytic solution.
Comparative example 5: the preparation of electrolyte
Make solvent, and the two (high-flash using the propene carbonate and low viscosity glycol dimethyl ether of high-flash low melting point
Low melting point solvent and low viscosity solvent) ratio be 1, double fluorine sulfimide lithium concentrations be 2.5mol/L, prepare nonaqueous electrolytic solution.
Performance test
The preparation of disposable lithium-battery: manganese dioxide or ferrous disulfide positive pole powder, binder Kynoar first
(PVDF761), organic solvent N is added in conductive additive carbon black and graphite, and N- dimethyl pyrrolidone (NMP) is stirred until homogeneous,
Scattered anode active material slurry is coated on aluminium foil, the positive plate of battery is cut into after rolling.Positive plate passes through dry
It is dry and after completely removing moisture therein, in the environment of being put into relative humidity lower than 3%, in negative metal lithium band and positive plate
Centre insertion plays the role of separating the porous isolating membrane of positive and negative anodes, is wound into columned battery core, the battery core of winding is put into steel
In shell, sealed after injecting electrolyte made from above-described embodiment 1-7 and comparative example 1-5.
The disposable lithium-battery of acquisition is tested for the property, test result such as table 1.Table 1 is embodiment 1-7 and comparative example 1-
5 performance comparison table.
Table 1
In conclusion disposable lithium-battery nonaqueous electrolytic solution provided by the invention has security performance height, the storage of good high temperature
The advantages of sustainability energy and low temperature performance.
The above description is only an embodiment of the present invention, is not intended to limit the scope of the invention, all to utilize this hair
Equivalents made by bright description are applied directly or indirectly in relevant technical field, are similarly included in this hair
In bright scope of patent protection.
Claims (7)
1. a kind of disposable lithium-battery nonaqueous electrolytic solution, which is characterized in that by lithium salts, high-flash low melting point solvent and low viscosity solvent
Composition, the high-flash low melting point solvent includes dimethyl methyl phosphonate, methylphosphonic acid diethylester, diethyl ethylphosphate, second
The flash-point of at least one of base dimethyl phosphonate and gamma-butyrolacton, the high-flash low melting point solvent is for 60 DEG C or more and molten
Point is 40 DEG C or less；
The low viscosity solvent includes 1,3- dioxolanes, tetrahydrofuran, methyl acetate, ethyl acetate, propyl acetate, propionic acid second
At least one of ester and propyl propionate, the viscosity of the low viscosity solvent are 1mPas or less；
The mass values of the high-flash low melting point solvent and low viscosity solvent are 0.5-2；
The content of the high-flash low melting point solvent is the 30%-45% of the disposable lithium-battery nonaqueous electrolytic solution gross mass, institute
The content for stating low viscosity solvent is the 30%~50% of the disposable lithium-battery nonaqueous electrolytic solution gross mass.
2. disposable lithium-battery nonaqueous electrolytic solution according to claim 1, which is characterized in that the high-flash low melting point solvent
Flash-point be 90 DEG C or more and fusing point is -40 DEG C hereinafter, the viscosity of the low viscosity solvent is 0.6mPas or less.
3. disposable lithium-battery nonaqueous electrolytic solution according to claim 1, which is characterized in that the high-flash low melting point solvent
Mass values with low viscosity solvent are 0.7-1.2.
4. disposable lithium-battery nonaqueous electrolytic solution according to claim 1, which is characterized in that the lithium salts includes double fluorine sulphonyl
One or both of imine lithium, bis- (trifluoro methylsulfonyl) imine lithiums.
5. disposable lithium-battery nonaqueous electrolytic solution according to claim 1, which is characterized in that the concentration of the lithium salts is 0.5-
2M。
6. disposable lithium-battery nonaqueous electrolytic solution according to claim 5, which is characterized in that the concentration of the lithium salts is 0.7-
1.1M。
7. a kind of disposable lithium-battery, including anode, cathode and the partition between anode and cathode, which is characterized in that also
Including disposable lithium-battery nonaqueous electrolytic solution as claimed in any one of claims 1 to 6.
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| CN101916878B (en) * | 2010-08-27 | 2012-12-12 | 上海奥威科技开发有限公司 | Low-temperature organic electrolyte taking gamma-butyrolactone as base solvent and application thereof |
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| CN1477729A (en) * | 2002-08-22 | 2004-02-25 | ����Sdi��ʽ���� | Electrolyte for chargeable lithium cell and chargeable lithium cell containg the same |
| CN1716681A (en) * | 2004-06-30 | 2006-01-04 | 三星Sdi株式会社 | Lithium secondary battery |
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