CN114221027A - Composite solid electrolyte membrane, preparation method thereof and lithium ion battery - Google Patents
Composite solid electrolyte membrane, preparation method thereof and lithium ion battery Download PDFInfo
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- CN114221027A CN114221027A CN202111496319.4A CN202111496319A CN114221027A CN 114221027 A CN114221027 A CN 114221027A CN 202111496319 A CN202111496319 A CN 202111496319A CN 114221027 A CN114221027 A CN 114221027A
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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
- H01M10/0561—Accumulators with non-aqueous electrolyte characterised by the materials used as electrolytes, e.g. mixed inorganic/organic electrolytes the electrolyte being constituted of inorganic materials only
- H01M10/0562—Solid materials
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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
- 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
- H01M10/0565—Polymeric materials, e.g. gel-type or solid-type
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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
- H01M2300/0065—Solid electrolytes
- H01M2300/0068—Solid electrolytes inorganic
-
- 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
- H01M2300/0065—Solid electrolytes
- H01M2300/0082—Organic polymers
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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 a composite solid electrolyte membrane, a preparation method thereof and a lithium ion battery. The composite solid electrolyte membrane comprises polyurethane, inorganic solid electrolyte and a leveling agent. The invention provides a composite solid electrolyte membrane, which is characterized in that a high-conductivity sulfide inorganic solid electrolyte and high-elasticity polyurethane are compounded, so that the high-conductivity sulfide inorganic solid electrolyte membrane has high conductivity, the flexibility of the solid electrolyte is enhanced, the use temperature range of the solid electrolyte is widened, and the solid electrolyte membrane has high ionic conductivity at low temperature. Meanwhile, the preparation method is simple to operate and good in repeatability.
Description
Technical Field
The invention belongs to the field of batteries, and particularly relates to a composite solid electrolyte membrane, a preparation method thereof and a lithium ion battery.
Background
The lithium ion battery is widely applied to the fields of portable electronic equipment, electric automobiles and smart power grids, at present, the lithium ion battery mostly adopts liquid organic phase electrolyte, but organic solvents in the lithium ion battery have flammable potential safety hazards, so that the all-solid-state battery becomes one of effective solutions for solving the problems. The all-solid-state battery utilizes solid electrolyte or gel electrolyte, avoids the problems of battery leakage, transition metal dissolution and the like, and has higher energy density.
In recent years, solid electrolytes are mainly classified into a third class of polymer electrolytes, inorganic electrolytes and composite electrolytes, wherein the polymer electrolytes have good high-temperature performance and are easy to form films, but have low room-temperature conductivity; the sulfide solid electrolyte in the inorganic solid electrolyte has high ionic conductivity, but the sulfide solid electrolyte has poor flexibility and cannot be bent. In order to solve the problems, researchers mostly adopt a method of compounding an inorganic solid electrolyte and a polymer electrolyte, so that high ionic conductivity can be guaranteed, the flexibility and the processability of the electrolyte can be improved, and the electrolyte can be applied to the fields of wearable electronic equipment and the like.
CN112117485A discloses a composite inorganic solid electrolyte membrane and a lithium metal battery thereof, wherein the composite inorganic solid electrolyte membrane comprises an inorganic solid electrolyte and an additive salt, although the addition of the additive improves the ionic conductivity of the solid electrolyte, the additive does not relate to the test data related to the mechanical strength of the solid electrolyte, and meanwhile, the cycle life of the corresponding lithium ion battery is short, and the capacity retention rate after 200 cycles is low. CN113497267A discloses a solid-state lithium metal battery and a composite electrode material, where the composite electrode material includes an electrode sheet and a protective layer, and the protective layer can inhibit side reactions on the surface of lithium metal, improve the growth condition of lithium dendrite, and improve the wettability between the negative electrode and the solid electrolyte membrane, but the discharge capacity is still slowly attenuated during the cycling process of the battery.
In the application scenario of the lithium ion battery, the battery has a good use effect at normal temperature and high temperature generally, but the specific capacity of the battery is low and the cycle performance is poor at low temperature. The sulfide solid electrolyte has a wider use temperature range, can show higher ionic conductivity even at low temperature, and can widen the application temperature of the lithium ion battery. In addition, the electrochemical performance of the lithium ion battery is ensured.
Therefore, in the art, it is desired to develop a solid electrolyte with high conductivity and stability, and which can broaden the application temperature range, and at the same time, has a simple preparation method and is easy for mass production.
Disclosure of Invention
In view of the defects of the prior art, the invention aims to provide a composite solid electrolyte membrane, a preparation method thereof and a lithium ion battery. The invention provides a composite solid electrolyte membrane, which is prepared by compounding a high-conductivity sulfide inorganic solid electrolyte and high-elasticity polyurethane, so that the high conductivity of the composite solid electrolyte membrane is ensured, and the use temperature range of the solid electrolyte is widened. Meanwhile, the preparation method is simple to operate and good in repeatability.
In order to achieve the purpose, the invention adopts the following technical scheme:
in a first aspect, the present invention provides a composite solid electrolyte membrane comprising polyurethane, an inorganic solid electrolyte, and a leveling agent.
Aiming at the problem that the application temperature of the lithium ion battery is limited, the invention adopts the inorganic solid electrolyte with wider application temperature range and higher conductivity to solve the problem that the conductivity of the lithium ion battery is lower at low temperature, and the polyurethane organic polymer with high elasticity is compounded, so that the solid electrolyte has flexibility and can be made into wearable equipment, and finally, the application range of the lithium ion battery is widened on the premise of ensuring the high conductivity performance.
Preferably, the polyurethane content in the composite solid electrolyte membrane is 40% to 80% by mass, for example, 40%, 50%, 60%, 70% or 80% by mass, but not limited to the recited values, and other values not recited in the numerical range are also applicable.
Preferably, the inorganic solid electrolyte is a sulfide solid electrolyte.
Preferably, the sulfide solid state electrolyte comprises Li4-aM1-aM'aS4，Li10GeP2S12，Li6PS5X, wherein a is more than or equal to 0 and less than or equal to 1, M is Si, Ge or Zr, M' is P, Al, Zn or Ga,x is Cl, Br or I, and may be, for example, Li10GeP2S12、Li6PS5Cl or Li6PS5I, but not limited to the listed species, other non-listed species within the scope of the sulfide solid state electrolyte are equally applicable.
Preferably, the inorganic solid electrolyte content of the composite solid electrolyte membrane is 19.5% to 59.5% by mass, for example 19.5%, 30%, 40%, 50% or 59.5% by mass, but not limited to the recited values, and other values not recited in the numerical range are also applicable.
Preferably, the leveling agent includes an acrylate.
Preferably, the composite solid electrolyte membrane has a content of the leveling agent of 0.01% to 0.5% by mass, for example, 0.0.1%, 0.1%, 0.2%, 0.3% or 0.5% by mass, but not limited to the recited values, and other values not recited in the numerical range are also applicable.
In a second aspect, the present invention provides a method for producing a composite solid electrolyte membrane according to the first aspect, the method comprising the steps of: and mixing the polyurethane, the inorganic solid electrolyte and the leveling agent, and then carrying out film scraping treatment to obtain the composite solid electrolyte film.
Preferably, the mixing is carried out under stirring.
Preferably, the stirring rate is 400r/min to 900r/min, for example 400r/min, 600r/min, 700r/min, 800r/min or 900r/min, but is not limited to the values listed, and other values not listed in the numerical range are equally applicable.
Preferably, the temperature of the mixing is 50 ℃ to 80 ℃, for example, it may be 50 ℃, 60 ℃, 70 ℃ or 80 ℃, but is not limited to the recited values, and other values not recited within the numerical range are equally applicable.
Preferably, the wiping treatment is performed in the absence of oxygen.
Preferably, the film scraping treatment further comprises a drying treatment.
Preferably, the drying temperature is 60 ℃ to 90 ℃, for example 60 ℃, 70 ℃, 80 ℃ or 90 ℃, but not limited to the recited values, and other values not recited in the numerical ranges are equally applicable.
In a third aspect, the present invention provides a lithium ion battery comprising a composite solid state electrolyte membrane according to the first aspect.
Compared with the prior art, the invention has the following beneficial effects:
(1) the inorganic solid electrolyte with wider temperature range and higher conductivity is adopted to solve the problem of lower conductivity of the lithium ion battery at low temperature, and the high-elasticity polyurethane organic polymer is compounded, so that the processing difficulty is reduced by using the leveling agent, the solid electrolyte has flexibility, and finally, the application range of the lithium ion battery is widened on the premise of ensuring the high conductivity performance;
(2) the preparation method provided by the invention is simple, good in repeated stability and easy for large-scale production.
Detailed Description
The technical solution of the present invention is further explained by the following embodiments. It should be understood by those skilled in the art that the examples are only for the understanding of the present invention and should not be construed as the specific limitations of the present invention.
Example 1
The present embodiment provides a composite solid electrolyte membrane including Li10GeP2S12(LGPS) sulfide solid electrolyte, polyurethane (polyester-type thermoplastic polyurethane 1190, molecular weight about 10 ten thousand available from Wawa Chemicals) and BYK-361N acrylate leveling agent.
The preparation method of the composite solid electrolyte membrane comprises the following steps:
the composite solid electrolyte membrane is prepared by mixing 19.75 mass percent of LGPS and 80 mass percent of polyurethane with the total mass of the composite solid electrolyte membrane being 100%, uniformly stirring the polyurethane by using a magnetic stirrer, pouring sulfide electrolyte in batches, continuously stirring, adding 0.25 mass percent of BYK-361N acrylate flatting agent, mixing at 65 ℃ and stirring at a speed of 650 r/min. The uniformly mixed mixture was prepared into a film having a thickness of 100 μm in a glove box using a doctor blade and dried at 75 c to finally obtain the composite solid electrolyte membrane.
Example 2
The present embodiment provides a composite solid electrolyte membrane including Li10GeP2S12(LGPS) sulfide solid electrolyte, polyurethane (polyester-type thermoplastic polyurethane 1190, molecular weight about 10 ten thousand available from Wawa Chemicals) and BYK-361N acrylate leveling agent.
The preparation method of the composite solid electrolyte membrane comprises the following steps:
the composite solid electrolyte membrane is prepared by mixing 29.9 mass percent of LGPS and 70 mass percent of polyurethane respectively based on 100 mass percent of the total mass of the composite solid electrolyte membrane, firstly uniformly stirring the polyurethane by using a magnetic stirrer, then pouring sulfide electrolyte in batches for continuous stirring, and finally adding 0.1 mass percent of BYK-361N acrylate flatting agent, wherein the mixing temperature is 55 ℃, and the stirring speed is 550 r/min. The uniformly mixed mixture was prepared into a film having a thickness of 100 μm in a glove box using a doctor blade and dried at 70 c to finally obtain the composite solid electrolyte membrane.
Example 3
The present embodiment provides a composite solid electrolyte membrane including Li10GeP2S12(LGPS) sulfide solid electrolyte, polyurethane (polyester-type thermoplastic polyurethane 1190, molecular weight about 10 ten thousand available from Wawa Chemicals) and BYK-361N acrylate leveling agent.
The preparation method of the composite solid electrolyte membrane comprises the following steps:
the preparation method comprises the steps of mixing 39.75 mass percent of LGPS and 60 mass percent of polyurethane with the total mass of the composite solid electrolyte membrane being 100%, uniformly stirring the polyurethane with a magnetic stirrer, pouring sulfide electrolyte in batches, continuously stirring, adding 0.25 mass percent of BYK-361N acrylate flatting agent, mixing at 65 ℃ and stirring at a speed of 650 r/min. The uniformly mixed mixture was prepared into a film having a thickness of 100 μm in a glove box using a doctor blade and dried at 75 c to finally obtain the composite solid electrolyte membrane.
Example 4
The present embodiment provides a composite solid electrolyte membrane including Li10GeP2S12(LGPS) sulfide solid electrolyte, polyurethane (polyester type thermoplastic polyurethane 1190, molecular weight about 10 ten thousand available from wawter chemical) and modified MONENG-1154 acrylate leveling agent.
The preparation method of the composite solid electrolyte membrane comprises the following steps:
the composite solid electrolyte membrane is prepared by mixing 49.75 mass percent of LGPS and 50 mass percent of polyurethane based on 100 mass percent of the total mass of the composite solid electrolyte membrane, uniformly stirring the polyurethane by using a magnetic stirrer, pouring sulfide electrolyte in batches, continuously stirring, and adding 0.25 mass percent of modified MONENG-1154 acrylate flatting agent, wherein the mixing temperature is 65 ℃ and the stirring speed is 650 r/min. The uniformly mixed mixture was prepared into a film having a thickness of 100 μm in a glove box using a doctor blade and dried at 75 c to finally obtain the composite solid electrolyte membrane.
Example 5
The present embodiment provides a composite solid electrolyte membrane including Li10GeP2S12(LGPS) sulfide solid electrolyte, polyurethane (polyester type thermoplastic polyurethane 1190, molecular weight about 10 ten thousand available from wawter chemical) and modified MONENG-1154 acrylate leveling agent.
The preparation method of the composite solid electrolyte membrane comprises the following steps:
the composite solid electrolyte membrane is prepared by mixing 59.75 mass percent of LGPS and 40 mass percent of polyurethane based on 100 mass percent of the total mass of the composite solid electrolyte membrane, uniformly stirring the polyurethane by using a magnetic stirrer, pouring sulfide electrolyte in batches, continuously stirring, and adding 0.25 mass percent of modified MONENG-1154 acrylate flatting agent, wherein the mixing temperature is 65 ℃ and the stirring speed is 650 r/min. The uniformly mixed mixture was prepared into a film having a thickness of 100 μm in a glove box using a doctor blade and dried at 75 c to finally obtain the composite solid electrolyte membrane.
Example 6
The present embodiment provides a composite solid electrolyte membrane including Li6PS5Cl sulfide solid electrolyte, polyurethane (polyester type thermoplastic polyurethane 1190, molecular weight about 10 ten thousand available from wawa chemical) and a modified MONENG-1154 acrylate leveling agent.
The preparation method of the composite solid electrolyte membrane comprises the following steps:
based on the total mass of the composite solid electrolyte membrane as 100%, the mass percentage of Li is 39.99%6PS5And mixing Cl and 60% of polyurethane, firstly uniformly stirring the polyurethane by using a magnetic stirrer, then pouring sulfide electrolyte into the mixture in batches and continuously stirring the mixture, and finally adding the modified MONENG-1154 acrylate flatting agent with the mass percentage content of 0.01%, wherein the mixing temperature is 50 ℃, and the stirring speed is 400 r/min. The uniformly mixed mixture was prepared into a thin film having a thickness of 100 μm in a glove box using a doctor blade, and dried at 60 ℃ to finally obtain the composite solid electrolyte membrane.
Example 7
The present embodiment provides a composite solid electrolyte membrane including Li6PS5Cl sulfide solid electrolyte, polyurethane (polyester type thermoplastic polyurethane 1190, molecular weight about 10 ten thousand available from wawa chemical) and a modified MONENG-1154 acrylate leveling agent.
The preparation method of the composite solid electrolyte membrane comprises the following steps:
li with the mass percentage of 59.5 percent respectively based on the total mass of the composite solid electrolyte membrane as 100 percent6PS5Cl and 40% polyurethane were mixed by first stirring the polyurethane homogeneously with a magnetic stirrer and then sulphur was addedPouring the electrolyte into the mixture in batches, continuously stirring, and finally adding the modified MONENG-1154 acrylate leveling agent with the mass percentage content of 0.5%, wherein the mixing temperature is 80 ℃, and the stirring speed is 900 r/min. The uniformly mixed mixture was prepared into a thin film having a thickness of 100 μm in a glove box using a doctor blade, and dried at 90 ℃ to finally obtain the composite solid electrolyte membrane.
Comparative example 1
The comparative example is different from example 1 in that a leveling agent was not added in the preparation of the composite solid electrolyte membrane, and LGPS and polyurethane were mixed in an amount of 20% by mass and 80% by mass, respectively, based on 100% by mass of the total composite solid electrolyte membrane, and the rest was the same as example 1.
Comparative example 2
This comparative example differs from example 1 in that the LGPS sulfide solid electrolyte was replaced with a LLZO oxide solid electrolyte during the preparation of a composite solid electrolyte membrane, and the rest was the same as example 1.
Comparative example 3
This comparative example is different from example 1 in that, in the production process of the composite solid electrolyte membrane, the contents of LGPS and polyurethane were adjusted, specifically, 69.75% by mass of LGPS and 30% by mass of polyurethane were mixed, respectively, based on 100% by mass of the total composite solid electrolyte membrane, and the rest was the same as example 1.
Comparative example 4
This comparative example is different from example 1 in that, in the production process of the composite solid electrolyte membrane, the contents of LGPS and polyurethane were adjusted, specifically, LGPS and polyurethane were mixed in amounts of 9.75% by mass and 90% by mass, respectively, based on 100% by mass of the total composite solid electrolyte membrane, and the rest was the same as example 1.
Test conditions
The ionic conductivity and tensile strength tests were conducted for examples 1-7 and comparative examples 1-4 as follows:
(1) and (3) ion conductivity test: the conductivity of the electrolyte is determined by assembling steel sheets as a blockSymmetrical cells of electrodes at electrochemical stations with frequencies ranging from 0.1Hz to 10 Hz6Hz, measured at a temperature of-40 ℃ to-10 ℃, and the ionic conductivity is calculated according to the following formula:
σ＝L/(Rb×A)
wherein σ is the electrical conductivity of the composite solid electrolyte membrane, L is the thickness (cm) of the composite solid electrolyte membrane, and A is the area (cm) of the composite solid electrolyte membrane2)、RbThe bulk resistance (Ω) of the composite solid electrolyte membrane.
(2) And (3) testing tensile strength: and (3) testing the tensile strength of the composite solid electrolyte membrane by a universal tensile machine at a speed of 10mm/min according to the GB/T36363-2018 standard.
The test results are shown in table 1:
TABLE 1
As can be seen from the data in Table 1, examples 1 to 7 illustrate that the composite solid electrolyte membrane provided by the present invention has good ionic conductivity at low temperature, not lower than 1.23X 10-3S/cm, the bulk resistance does not exceed 2.155 omega, the tensile strength of the composite solid electrolyte membrane is not lower than 5.65MPa, and the thickness of the composite solid electrolyte membrane is 50 mu m, which further shows that the composite solid electrolyte membrane provided by the invention has good mechanical properties.
Compared with the embodiment 1, the comparative example 1 has no leveling agent, the processing difficulty of the prepared composite solid electrolyte membrane is increased, the tensile strength and the corresponding ionic conductivity of the composite solid electrolyte membrane are reduced, and the bulk resistance is increased; comparative example 2 when the sulfide solid electrolyte was replaced with the LLZO oxide solid electrolyte, the ionic conductivity was reduced because the conductivity of the sulfide solid electrolyte was better; comparative examples 3 and 4 illustrate that when the inorganic solid electrolyte and polyurethane contents are not in the limited ranges, a composite solid electrolyte membrane having both high ionic conductivity and good mechanical strength cannot be prepared.
The applicant states that the present invention is illustrated by the above examples of the process of the present invention, but the present invention is not limited to the above process steps, i.e. it is not meant that the present invention must rely on the above process steps to be carried out. It will be apparent to those skilled in the art that any modification of the present invention, equivalent substitutions of selected materials and additions of auxiliary components, selection of specific modes and the like, which are within the scope and disclosure of the present invention, are contemplated by the present invention.
Claims (10)
1. A composite solid electrolyte membrane is characterized by comprising polyurethane, inorganic solid electrolyte and a leveling agent.
2. The composite solid electrolyte membrane according to claim 1, wherein the mass percentage of polyurethane in the composite solid electrolyte membrane is 40% to 80%.
3. The composite solid electrolyte membrane according to claim 1 or 2, wherein the inorganic solid electrolyte is a sulfide solid electrolyte, and the mass percentage of the inorganic solid electrolyte in the composite solid electrolyte membrane is 19.5% to 59.5%.
4. The composite solid electrolyte membrane according to claim 1, wherein the leveling agent comprises an acrylate.
5. The composite solid electrolyte membrane according to claim 1, wherein the mass percentage of the leveling agent in the composite solid electrolyte membrane is 0.01% to 0.5%.
6. A method for producing a composite solid electrolyte membrane according to any one of claims 1 to 5, characterized by comprising the steps of: and mixing the polyurethane, the inorganic solid electrolyte and the leveling agent, and then carrying out film scraping treatment to obtain the composite solid electrolyte film.
7. The method of claim 6, wherein the mixing is performed under agitation at a rate of 400r/min to 900 r/min.
8. The method of claim 6 or 7, wherein the temperature of the mixing is 50 ℃ to 80 ℃.
9. The preparation method according to claim 6, further comprising a drying treatment after the scraping treatment, wherein the drying temperature is 60 ℃ to 90 ℃.
10. A lithium ion battery comprising a composite solid state electrolyte membrane according to any one of claims 1-5.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115377481A (en) * | 2022-08-23 | 2022-11-22 | 合肥国轩高科动力能源有限公司 | Organic-inorganic composite solid electrolyte, preparation method thereof and lithium ion solid battery |
| CN117638268A (en) * | 2024-01-25 | 2024-03-01 | 四川新能源汽车创新中心有限公司 | Application of ester substance as surface modifier, battery pole piece and preparation method |
| CN117638268B (en) * | 2024-01-25 | 2024-04-23 | 四川新能源汽车创新中心有限公司 | Application of ester substance as surface modifier, battery pole piece and preparation method |
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| WO2020036055A1 (en) * | 2018-08-13 | 2020-02-20 | 富士フイルム株式会社 | Solid electrolyte composition, solid electrolyte-containing sheet, electrode sheet for all solid state secondary battery, and all solid state secondary battery |
| US20200266485A1 (en) * | 2017-11-17 | 2020-08-20 | Fujifilm Corporation | Solid electrolyte composition, solid electrolyte-containing sheet, electrode sheet for all-solid state secondary battery, all-solid state secondary battery, method of manufacturing solid electrolyte-containing sheet, and method of manufacturing all-solid state secondary battery |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US20200266485A1 (en) * | 2017-11-17 | 2020-08-20 | Fujifilm Corporation | Solid electrolyte composition, solid electrolyte-containing sheet, electrode sheet for all-solid state secondary battery, all-solid state secondary battery, method of manufacturing solid electrolyte-containing sheet, and method of manufacturing all-solid state secondary battery |
| WO2020036055A1 (en) * | 2018-08-13 | 2020-02-20 | 富士フイルム株式会社 | Solid electrolyte composition, solid electrolyte-containing sheet, electrode sheet for all solid state secondary battery, and all solid state secondary battery |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115377481A (en) * | 2022-08-23 | 2022-11-22 | 合肥国轩高科动力能源有限公司 | Organic-inorganic composite solid electrolyte, preparation method thereof and lithium ion solid battery |
| CN117638268A (en) * | 2024-01-25 | 2024-03-01 | 四川新能源汽车创新中心有限公司 | Application of ester substance as surface modifier, battery pole piece and preparation method |
| CN117638268B (en) * | 2024-01-25 | 2024-04-23 | 四川新能源汽车创新中心有限公司 | Application of ester substance as surface modifier, battery pole piece and preparation method |
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