CN111769331B - Solid-state battery for controlling ordered growth of lithium dendrites - Google Patents

Solid-state battery for controlling ordered growth of lithium dendrites Download PDF

Info

Publication number
CN111769331B
CN111769331B CN202010451731.3A CN202010451731A CN111769331B CN 111769331 B CN111769331 B CN 111769331B CN 202010451731 A CN202010451731 A CN 202010451731A CN 111769331 B CN111769331 B CN 111769331B
Authority
CN
China
Prior art keywords
solid electrolyte
solid
lithium
battery
coating
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN202010451731.3A
Other languages
Chinese (zh)
Other versions
CN111769331A (en
Inventor
王磊
代化
樊志民
卢北虎
裴波
张一驰
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Wuhan Institute of Marine Electric Propulsion China Shipbuilding Industry Corp No 712 Institute CSIC
Original Assignee
Wuhan Institute of Marine Electric Propulsion China Shipbuilding Industry Corp No 712 Institute CSIC
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Wuhan Institute of Marine Electric Propulsion China Shipbuilding Industry Corp No 712 Institute CSIC filed Critical Wuhan Institute of Marine Electric Propulsion China Shipbuilding Industry Corp No 712 Institute CSIC
Priority to CN202010451731.3A priority Critical patent/CN111769331B/en
Publication of CN111769331A publication Critical patent/CN111769331A/en
Application granted granted Critical
Publication of CN111769331B publication Critical patent/CN111769331B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • 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
    • H01M10/058—Construction or manufacture
    • 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
    • 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
    • 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
    • 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
    • H01M2300/0088—Composites
    • H01M2300/0091—Composites in the form of mixtures
    • 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
    • H01M2300/0088—Composites
    • H01M2300/0094—Composites in the form of layered products, e.g. coatings
    • 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
    • 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
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/50—Manufacturing or production processes characterised by the final manufactured product

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • General Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Physics & Mathematics (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • General Physics & Mathematics (AREA)
  • Inorganic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Dispersion Chemistry (AREA)
  • Battery Electrode And Active Subsutance (AREA)
  • Secondary Cells (AREA)

Abstract

The invention discloses a preparation method of a solid electrolyte for controlling ordered growth of lithium dendrites and a battery, wherein a compact carbon material coating is coated on the surface of the solid electrolyte, and the solid electrolyte and a metal lithium cathode are jointed by a double-sided conductive adhesive under certain pressure, so that on one hand, the growth direction of the lithium dendrites can be orderly controlled in a gap between the joint surface of the solid electrolyte and the metal lithium, the lithium dendrites can grow oppositely in the gap, the lithium dendrites are prevented from puncturing the solid electrolyte, and on the other hand, the carbon coating can improve the interface impedance between the solid electrolyte and a positive electrode material, and the conduction efficiency of lithium ions is improved.

Description

Solid-state battery for controlling ordered growth of lithium dendrites
Technical Field
The invention belongs to the technical field of material synthesis, and particularly relates to a preparation method of a solid electrolyte for controlling the ordered growth direction of lithium dendrites, and a solid battery based on the electrolyte.
Background
With the continuous improvement of the energy density of the lithium ion battery, the traditional graphite cathode is difficult to meet the needs of future energy situations, the theoretical capacity of the metal lithium cathode reaches 3866 mAh/g, and the metal lithium cathode has excellent conductivity and is a perfect cathode material, however, lithium dendrites are easy to grow on the surface of the cathode in the shuttle conduction process of lithium ions in electrolyte, and the lithium dendrites are easy to penetrate through a diaphragm along with the growth of the lithium dendrites to cause the direct contact of the anode and the cathode of the battery to cause short circuit, so that potential safety hazards are generated.
It is generally considered that the problem of lithium dendrite can be solved by using an all-solid electrolyte, but in practice, lithium dendrite still grows in the all-solid electrolyte, and particularly for the garnet-structured all-solid electrolyte, lithium dendrite is very likely to grow along grain boundaries between grains in the solid electrolyte, and a short-circuit accident is likely to be triggered.
Disclosure of Invention
It is an object of the present invention to provide a method for preparing a solid electrolyte capable of orderly controlling the growth direction of lithium dendrites, in accordance with the deficiencies of the prior art.
The technical scheme adopted by the invention for solving the technical problems is as follows: a method for preparing a solid electrolyte for controlling ordered growth of lithium dendrites comprises the following steps
1) Putting a proper amount of carbon material into a concentrated acid solution, and carrying out ultrasonic treatment for 6 h, wherein the acidification temperature is constant at 55 ℃;
2) filtering and collecting the carbon material after the concentrated acid treatment, and repeatedly washing the carbon material by using deionized water for multiple times until the pH value of the washing solution for the last time is within the range of 6-7;
3) according to the mass ratio of 7: 1-9: 1 weighing a proper amount of carbon material and polyvinylidene fluoride (PVDF), then adding a proper amount of N-methyl pyrrolidone (NMP) solvent, fully stirring the slurry for 30 min by using a homogenizer, and uniformly mixing to obtain slurry without granular sensation;
4) uniformly coating the slurry mixture on one surface of the solid electrolyte by using a scraping machine, wherein the coating surface density is 0.3-0.5 mg cm−2Then, the solid electrolyte coated with the slurry is placed in a vacuum drying oven and dried for 12 hours at the temperature of 100-120 ℃;
5) uniformly coating the slurry mixture on the other surface of the solid electrolyte by a scraping machine, wherein the coating surface density is 0.3-0.5 mg cm−2And then, the solid electrolyte coated with the slurry is placed in a vacuum drying oven and dried for 12 hours at the temperature of 100-120 ℃ to obtain the solid electrolyte for controlling the ordered growth direction of the lithium dendrites.
The preparation method of the solid electrolyte for controlling the ordered growth of the lithium dendrites comprises the step 1) of preparing the carbon material which is carbon nano tubes or carbon nano fibers or a mixture of the carbon nano tubes and the carbon nano fibers.
The preparation method of the solid electrolyte for controlling the ordered growth of the lithium dendrites comprises the step 1) of using concentrated acid solution of concentrated sulfuric acid or concentrated nitric acid or a mixture of the concentrated sulfuric acid and the concentrated nitric acid.
The preparation method of the solid electrolyte for controlling the ordered growth of the lithium dendrites comprises the following steps that the ratio of the carbon material to the polyvinylidene fluoride in the step 3) is 8: 1.
the preparation method of the solid electrolyte for controlling the ordered growth of the lithium dendrites comprises the steps 4) and 5) that the solid electrolyte is an inorganic solid electrolyte or an organic solid electrolyte or a mixture of the inorganic solid electrolyte and the organic solid electrolyte.
The second purpose of the invention is to provide a solid lithium metal battery capable of controlling the ordered growth of lithium dendrites, which is made of LiFePO as the anode material4Or Li [ Ni ]0.8Co0.1Mn0.1]O2The lithium ion battery comprises metal lithium serving as a negative electrode and a solid electrolyte, wherein a compact carbon coating is coated on the front surface and the back surface of the solid electrolyte, the carbon coating on one surface is connected with a positive electrode material, the carbon coating on one surface is attached to double-surface conductive adhesive around the metal lithium under the pressure of 5-8 MPa, and current collectors are arranged outside the metal lithium and the positive electrode material.
The solid-state battery for controlling the ordered growth of the lithium dendrites is a square aluminum shell battery, a soft package battery, a cylindrical battery or a button battery.
The invention has the following beneficial effects: according to the invention, the carbon material coating is adopted, and the coating and the bonding of the carbon material are added in the traditional solid electrolyte preparation process, so that on one hand, the growth direction of lithium dendrites can be orderly controlled in the gap between the solid electrolyte and the metal lithium bonding surface, the lithium dendrites can grow oppositely in the gap, the lithium dendrites are prevented from piercing the solid electrolyte, and on the other hand, the carbon coating can improve the interface impedance between the solid electrolyte and the anode material, and the conduction efficiency of lithium ions is improved.
Drawings
Fig. 1 is a schematic cross-sectional view of a solid-state battery of the present invention;
fig. 2 is a schematic diagram of lithium dendrite growth of a solid state battery of the present invention.
The figures are numbered: 10-metal lithium, 11-current collector, 12-conductive adhesive, 13-carbon coating, 14-solid electrolyte, and 15-anode material.
Detailed Description
The technical solution of the present invention is further described below with reference to the accompanying drawings, but not limited thereto, and any modification or equivalent replacement of the technical solution of the present invention without departing from the spirit and scope of the technical solution of the present invention shall be covered by the protection scope of the present invention.
Example 1
This example was prepared with LiFePO4The material is a positive electrode, the metal lithium is a negative electrode and Li0.34La0.51TiO2.94Solid button cell of inorganic electrolyte. The preparation of the solid electrolyte and the coating and bonding process of the carbon material are as follows:
1) proper amount of carbon nanotube is put into concentrated sulfuric acid solution and treated by ultrasonic for 6 h, and the acidification temperature is constant at 55 ℃.
2) And filtering and collecting the carbon nano tube treated by the concentrated sulfuric acid, and repeatedly washing the carbon nano tube by using deionized water for multiple times until the pH value of the washing solution for the last time is within the range of 6-7.
3) Weighing a proper amount of carbon nano tube and polyvinylidene fluoride (PVDF) according to the mass ratio of 8:1, then adding a proper amount of N-methyl pyrrolidone (NMP) solvent, and fully stirring the slurry by using a homogenizer for 30 min until the slurry has no granular feel and is uniformly mixed.
4) The slurry mixture was uniformly applied to one side of a solid electrolyte by a doctor blade machine to a coating surface density of 0.5 mg cm−2Then, the solid electrolyte coated with the slurry was dried in a vacuum drying oven at 120 ℃ for 12 hours.
5) The slurry mixture was uniformly applied to the other side of the solid electrolyte by a doctor blade machine to a coating surface density of 0.5 mg cm−2Then, the solid electrolyte coated with the slurry was dried in a vacuum drying oven at 120 ℃ for 12 hours.
6) And adhering a proper amount of double-sided carbon conductive adhesive around the contact surface of the prepared solid electrolyte and the negative electrode, and adhering by using 8 MPa pressure.
Example 2
Preparation with Li [ Ni ]0.8Co0.1Mn0.1]O2The solid soft package battery is characterized in that the ternary material is a positive electrode, the metal lithium is a negative electrode, and polyethylene oxide (PEO) based polymer electrolyte is adopted. The preparation of the solid electrolyte and the coating and bonding process of the carbon material are as follows:
1) and (3) putting a proper amount of modified graphene into a concentrated nitric acid solution, performing ultrasonic treatment for 6 hours, and keeping the acidification temperature constant at 55 ℃.
2) And filtering and collecting the modified graphene after the concentrated nitric acid treatment, and repeatedly washing the modified graphene by using deionized water for multiple times until the pH value of the washing solution for the last time is within the range of 6-7.
3) Weighing a proper amount of modified graphene and polyvinylidene fluoride (PVDF) according to a mass ratio of 8:1, adding a proper amount of N-methylpyrrolidone (NMP) solvent, and fully stirring the slurry by using a homogenizer for 30 min until the slurry has no granular feel and is uniformly mixed.
4) The slurry mixture was uniformly applied to one side of a solid electrolyte by a doctor blade machine to a coating surface density of 0.3 mg cm−2Then, the solid electrolyte coated with the slurry was dried in a vacuum drying oven at 100 ℃ for 12 hours.
5) The slurry mixture was uniformly applied to the other side of the solid electrolyte by a doctor blade machine to a coating surface density of 0.3 mg cm−2Then, the solid electrolyte coated with the slurry was dried in a vacuum drying oven at 100 ℃ for 12 hours.
6) And adhering a proper amount of double-sided carbon conductive adhesive around the contact surface of the prepared solid electrolyte and the negative electrode by using 6 MPa pressure.
Example 3
Preparation with LiFePO4The material is a positive electrode, the metal lithium is a negative electrode, and the material is a soft package battery of organic-inorganic composite electrolyte. The preparation of the solid electrolyte and the coating and bonding process of the carbon material are as follows:
1) proper amount of carbon nano fiber is put into concentrated sulfuric acid solution, ultrasonic treatment is carried out for 6 hours, and the acidification temperature is constant at 55 ℃.
2) And filtering and collecting the carbon nano-fiber treated by concentrated sulfuric acid, and repeatedly washing with deionized water for multiple times until the pH value of the washing solution for the last time is within the range of 6-7.
3) Weighing a proper amount of carbon nanofibers and polyvinylidene fluoride (PVDF) according to a mass ratio of 8:1, adding a proper amount of N-methylpyrrolidone (NMP) solvent, and fully stirring the slurry by using a homogenizer for 30 min until the slurry has no granular feel and is uniformly mixed.
4) The slurry mixture was uniformly applied to one side of a solid electrolyte by a doctor blade machine to give a coating surface density of 0.4mg cm−2Then, the solid electrolyte coated with the slurry was dried in a vacuum drying oven at 120 ℃ for 12 hours.
5) The slurry mixture was uniformly applied to the other side of the solid electrolyte by a doctor blade machine to a coating surface density of 0.4mg cm−2Then, the solid electrolyte coated with the slurry was dried in a vacuum drying oven at 120 ℃ for 12 hours.
6) And adhering a proper amount of double-sided carbon conductive adhesive around the contact surface of the prepared solid electrolyte and the negative electrode by using the pressure of 5 MPa.
In all of examples 1 to 3, a solid electrolyte for controlling the growth direction of lithium dendrite ordered structure was prepared from LiFePO as the positive electrode material 154Or Li [ Ni ]0.8Co0.1Mn0.1]O2The lithium metal battery comprises a lithium metal battery 10 serving as a negative electrode and a solid electrolyte 14, wherein a layer of compact carbon coating 13 is coated on the front surface and the back surface of the solid electrolyte 14, the carbon coating 13 on one surface is connected with a positive electrode material 15, the carbon coating 13 on one surface is attached to a double-surface conductive adhesive 12 around the lithium metal battery 10 under the pressure of 5-8 MPa, current collectors 11 are arranged outside the lithium metal battery 10 and the positive electrode material 15, and the specific structure is shown in figure 1.
As shown in fig. 2, lithium dendrites grow in the gaps between the carbon coating and the lithium dendrites, thereby preventing the lithium dendrites from growing in the solid electrolyte to cause internal short circuits in the battery.
The above-described embodiments are merely illustrative of the principles and effects of the present invention, and some embodiments may be applied, and it will be apparent to those skilled in the art that various changes and modifications may be made without departing from the inventive concept of the present invention, and these embodiments are within the scope of the present invention.

Claims (5)

1. A solid-state battery for controlling the ordered growth of lithium dendrites, comprising: made of LiFePO as a positive electrode material (15)4Or Li [ Ni ]0.8Co0.1Mn0.1]O2The lithium battery comprises a lithium metal (10) serving as a negative electrode and a solid electrolyte (14), wherein carbon coatings (13) are coated on the front surface and the back surface of the solid electrolyte (14), the carbon coating (13) on one surface is connected with a positive electrode material (15), the carbon coating (13) on one surface is attached to double-sided conductive adhesive (12) around the lithium metal (10) under the pressure of 5-8 MPa, the conductive adhesive (12) is located on the contact surface of the carbon coating (13) and the lithium metal (10) and distributed along the periphery, and current collectors (11) are arranged outside the lithium metal (10) and the positive electrode material (15); the preparation method of the solid electrolyte (14) comprises the following steps:
1) putting the carbon nano-fiber into a concentrated acid solution, and carrying out ultrasonic treatment for 6 hours, wherein the acidification temperature is constant at 55 ℃;
2) filtering and collecting the carbon nanofibers, and repeatedly washing with deionized water until the pH value of the washing solution is 6-7;
3) according to the mass ratio of 7: 1-9: 1, weighing carbon nano fibers and polyvinylidene fluoride, then adding an N-methyl pyrrolidone solvent, fully stirring for 30 min by using a homogenizer, and uniformly mixing to obtain slurry without granular feeling;
4) uniformly coating the slurry mixture on one surface of the solid electrolyte by using a scraping machine, wherein the coating surface density is 0.3-0.5 mg cm−2Then, the solid electrolyte coated with the slurry is placed in a vacuum drying oven and dried for 12 hours at the temperature of 100-120 ℃;
5) uniformly coating the slurry mixture on the other surface of the solid electrolyte by a scraping machine, wherein the coating surface density is 0.3-0.5 mg cm−2Then, the solid electrolyte coated with the slurry is placed in a vacuum drying oven and dried for 12 hours at the temperature of 100-120 ℃ to obtain the solid electrolyte with the lithium dendrites growing orderlyAnd (4) decomposing the materials.
2. The solid-state battery for controlling ordered growth of lithium dendrites of claim 1 wherein the solid-state battery is a prismatic aluminum can battery, a pouch battery, a cylindrical battery or a button battery.
3. The solid-state battery for controlling ordered growth of lithium dendrites of claim 1 wherein the concentrated acid solution in step 1) is concentrated sulfuric acid or concentrated nitric acid or a mixture of both.
4. The solid-state battery for controlling ordered growth of lithium dendrites of claim 1 wherein the ratio of carbon nanofibers to polyvinylidene fluoride in step 3) is 8: 1.
5. the solid-state battery for controlling ordered growth of lithium dendrites of claim 1 wherein the solid-state electrolyte in steps 4) and 5) is an inorganic solid-state electrolyte or an organic solid-state electrolyte or a mixture of both.
CN202010451731.3A 2020-05-25 2020-05-25 Solid-state battery for controlling ordered growth of lithium dendrites Active CN111769331B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202010451731.3A CN111769331B (en) 2020-05-25 2020-05-25 Solid-state battery for controlling ordered growth of lithium dendrites

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202010451731.3A CN111769331B (en) 2020-05-25 2020-05-25 Solid-state battery for controlling ordered growth of lithium dendrites

Publications (2)

Publication Number Publication Date
CN111769331A CN111769331A (en) 2020-10-13
CN111769331B true CN111769331B (en) 2021-07-09

Family

ID=72719602

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202010451731.3A Active CN111769331B (en) 2020-05-25 2020-05-25 Solid-state battery for controlling ordered growth of lithium dendrites

Country Status (1)

Country Link
CN (1) CN111769331B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11355781B1 (en) * 2021-06-08 2022-06-07 WATTRII, Inc. Solid-state electrolytes and solid-state electrochemical cells having solid-state electrolytes

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201256163Y (en) * 2008-08-07 2009-06-10 武汉博赛尔科技有限公司 Lithium battery anode
EP3951967A1 (en) * 2012-04-10 2022-02-09 California Institute of Technology Novel separators for electrochemical systems
CN105118994B (en) * 2015-08-26 2017-10-27 武汉理工大学 A kind of lithium ion cell positive phosphoric acid vanadium lithium composite and preparation method thereof
CN105679983A (en) * 2016-03-11 2016-06-15 中南大学 Modified diaphragm and preparation method and application therefor
CN106684298B (en) * 2017-01-22 2020-03-31 湖南立方新能源科技有限责任公司 Application method of lithium ion battery
KR102046547B1 (en) * 2018-02-23 2019-11-19 한국과학기술연구원 Nitrogen doped reduced graphene oxide artificial solid electrolyte interphase and anode for lithium metal battery comprising the same
CN108923022A (en) * 2018-05-23 2018-11-30 中国科学院青岛生物能源与过程研究所 A kind of method of modifying improving all-solid-state battery cathode of lithium stability
CN110600808B (en) * 2019-09-20 2022-04-12 哈尔滨工业大学 Method for improving lithium dendrite on solid electrolyte interface by using carbon fluoride

Also Published As

Publication number Publication date
CN111769331A (en) 2020-10-13

Similar Documents

Publication Publication Date Title
CN108417777B (en) Porous ternary composite positive plate and preparation method and application thereof
CN110739427B (en) Battery diaphragm material and preparation method and application thereof
CN106252659A (en) Integrated flexible thin film lithium sulfur or lithium ion battery cell, battery and preparation method
CN108878892A (en) Positive pole piece and battery
KR20140112451A (en) Manufacturing method of porous carbon-silicon composite, and porous carbon-silicon composite manufactured thereby
CN106159197A (en) A kind of integrated flexible membrane electrode and preparation method thereof
JP2003012311A (en) Production method of polymer coated carbon material, negative-electrode material and lithium ion secondary battery
JP3658805B2 (en) Negative electrode for lithium battery and lithium battery using the same
CN111799470B (en) Positive pole piece and sodium ion battery
JP2002117851A (en) Carbon material, negative electrode for secondary lithium ion battery, and secondary lithium ion battery
CN103972580B (en) A kind of lithium-sulfur cell
CN114242942A (en) Composite buffer layer with stable negative electrode interface and solid-state lithium metal battery thereof
JP2003100284A (en) Lithium secondary battery
JP5395350B2 (en) Sheet-like negative electrode for lithium ion secondary battery and lithium ion secondary battery using the same
CN111769331B (en) Solid-state battery for controlling ordered growth of lithium dendrites
CN114512708A (en) Preparation method and application of lithium ion composite solid electrolyte
CN112615057B (en) Preparation method of solid-state lithium ion battery and solid-state lithium ion battery
JPH09245770A (en) Non-aqueous electrolyte battery
CN113964290A (en) Lithium metal negative electrode, preparation method thereof and lithium metal battery
JP2012022933A (en) Negative electrode material for secondary battery, negative electrode for lithium ion secondary battery and lithium ion secondary battery
CN116404099A (en) Carbon material-lithium metal composite material and preparation method and application thereof
CN109659475A (en) A kind of preparation method of high-performance high-voltage lithium ion battery
CN109786804B (en) Nano battery
CN112952045B (en) Composite material and preparation method thereof, lithium metal cathode and lithium ion battery
CN112420976A (en) Lithium battery cathode, preparation method thereof and lithium battery

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant