CN105070887A - Lithium sulfur battery positive electrode material - Google Patents
Lithium sulfur battery positive electrode material Download PDFInfo
- Publication number
- CN105070887A CN105070887A CN201510382347.1A CN201510382347A CN105070887A CN 105070887 A CN105070887 A CN 105070887A CN 201510382347 A CN201510382347 A CN 201510382347A CN 105070887 A CN105070887 A CN 105070887A
- Authority
- CN
- China
- Prior art keywords
- sulphur
- graphene oxide
- sulfur battery
- cnts
- lithium sulfur
- 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.)
- Granted
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/36—Selection of substances as active materials, active masses, active liquids
- H01M4/362—Composites
- H01M4/366—Composites as layered products
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B82—NANOTECHNOLOGY
- B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
- B82Y30/00—Nanotechnology for materials or surface science, e.g. nanocomposites
-
- 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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/36—Selection of substances as active materials, active masses, active liquids
- H01M4/38—Selection of substances as active materials, active masses, active liquids of elements or alloys
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/62—Selection of inactive substances as ingredients for active masses, e.g. binders, fillers
- H01M4/624—Electric conductive fillers
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/62—Selection of inactive substances as ingredients for active masses, e.g. binders, fillers
- H01M4/624—Electric conductive fillers
- H01M4/625—Carbon or graphite
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Composite Materials (AREA)
- Nanotechnology (AREA)
- Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Materials Engineering (AREA)
- Crystallography & Structural Chemistry (AREA)
- Manufacturing & Machinery (AREA)
- Battery Electrode And Active Subsutance (AREA)
- Secondary Cells (AREA)
Abstract
The invention provides a lithium sulfur battery positive electrode material. The positive electrode material comprises a sulfur/graphene oxide/CNTs compound, the sulfur/graphene oxide/CNTs compound is coated with a conductive polymer layer, and the conductive polymer layer is coated with a binder layer. A large amount of functional groups on the surface of graphene oxide have a very good fixing effect on in situ generated sulfur simple substance, so the cycle stability of a battery is obviously improved; CNTs are compounded with graphene oxide, so the power density, the charge and discharge speed and the stability of the battery are increased; and the conductive polymer layer can improve the conductivity of the positive electrode material, and also can prevent degradation of an electrolyte and generation of other side reactions. The lithium sulfur battery positive electrode material has large electrode capacity and excellent cycle performances.
Description
Technical field
The present invention relates to a kind of battery material, be specifically related to a kind of lithium sulfur battery anode material.
Background technology
Lithium-sulfur cell be using element sulphur as positive pole, lithium metal as a kind of lithium battery of negative pole, its specific capacity up to 1675mAh/g, far away higher than the capacity (< 150mAh/g) of the cobalt acid lithium battery of commercial extensive use.In theory, the lithium-sulfur cell of same weight can provide for electric automobile the cruising time being three times in current conventional lithium-ion battery.In addition, sulphur is free of contamination environmental friendliness element, its rich reserves, lightweight and cheap, is a kind of lithium battery material having prospect.
The charge-discharge principle of lithium-sulfur cell is: during electric discharge, negative reaction is that lithium loses electronics and becomes lithium ion, and positive pole reaction generates sulfide for sulphur and lithium ion and electron reaction, and the electrical potential difference of positive pole and negative reaction is the discharge voltage that lithium-sulfur cell provides.Under applied voltage effect, the positive pole of lithium-sulfur cell and negative reaction counter movement, be charging process.Elemental sulfur according to unit mass becomes S completely
2-the electricity that can provide can show that the theoretical discharge specific discharge capacity of sulphur is 1675mAh/g, in like manner can show that the theoretical discharge specific discharge capacity of simple substance lithium is 3860mAh/g.The theoretical discharge voltage of lithium-sulfur cell is 2.287V, when sulphur and lithium complete reaction generate lithium sulfide (Li
2s), time, corresponding theoretical discharge specific energy is 2600Wh/kg.
Mainly there are three problems in the application of lithium-sulfur cell: the product lithium polysulfide of lithium and sulphur is dissolved in electrolyte, is unfavorable for the cycle applications of battery; The non-conductive property of sulphur, is unfavorable for the high rate capability of battery; Sulphur is in charge and discharge process, and the change of volume is very large, likely causes cell damage.How to address these problems is that lithium-sulfur cell is applied to actual key technology.
Summary of the invention
The object of the invention is to be to provide a kind of lithium sulfur battery anode material with larger capacity and excellent cycle performance, for the application of lithium-sulfur cell lays the foundation.
For achieving the above object, present invention employs following technical scheme:
A kind of lithium sulfur battery anode material, this material comprises sulphur/graphene oxide/CNTs compound, described sulphur/graphene oxide/CNTs compound is coated with electroconductive polymer layer, described electroconductive polymer layer is coated with adhesive layer.
First preferred version of described lithium sulfur battery anode material, in described sulphur/graphene oxide/CNTs compound, the mass ratio of sulphur powder and graphene oxide is 8: 1 ~ 1: 15.
Second preferred version of described lithium sulfur battery anode material, in described sulphur/graphene oxide/CNTs compound, the mass ratio of sulphur powder and graphene oxide is 4: 1.
3rd preferred version of described lithium sulfur battery anode material, in described sulphur/graphene oxide/CNTs compound, the mass ratio of sulphur powder and CNTs is 8: 1 ~ 1: 15.
4th preferred version of described lithium sulfur battery anode material, in described sulphur/graphene oxide/CNTs compound, the mass ratio of sulphur powder and CNTs is 4: 1.
5th preferred version of described lithium sulfur battery anode material, the macromolecular material in described electroconductive polymer layer is at least containing any one the macromolecular material in amino, carboxyl and hydroxyl.
6th preferred version of described lithium sulfur battery anode material, described macromolecular material is poly-dopamine, polypyrrole, poly-acetic acid, poly-propionic acid or polyvinyl alcohol.
7th preferred version of described lithium sulfur battery anode material, in described positive electrode, the mass ratio of sulphur and conducting polymer composite is 5: 1 ~ 1: 10.
8th preferred version of described lithium sulfur battery anode material, described binding agent is sodium alginate, shitosan, sodium cellulose glycolate or polyacrylic acid.
9th preferred version of described lithium sulfur battery anode material, in described positive electrode, the mass ratio of sulphur and binding agent is 5: 1 ~ 1: 10.
With immediate prior art ratio, tool of the present invention has the following advantages:
1) in the present invention, there are good fixation in a large amount of functional groups of surface of graphene oxide to generated in-situ sulphur simple substance, can significantly improve the cyclical stability of battery;
2) compound of CNTs and graphene oxide in the present invention, can improve the conductivity of positive electrode on the one hand; Well can isolate different stannic oxide/graphene nano sheets on the other hand, reduce the reunion of graphene oxide; Passing through that the CNTs simultaneously forming network configuration is lithium ion provides multichannel, thus the power density of increasing battery, charge/discharge rates, capacitance and stability thereof, specific discharge capacity is up to 1475.2mAhg
-1, after lower 200 circulations of 1000mA/g, specific capacity conservation rate is greater than 75%;
3) in the present invention, electroconductive polymer layer can improve the conductivity of positive electrode, also has protective effect to compound, avoids electrode material to contact with the direct of electrolyte, stops the degraded of electrolyte and the generation of other side reactions.
Embodiment
Below in conjunction with embodiment, technical scheme of the present invention is described further.
Embodiment 1
A kind of lithium sulfur battery anode material, this material comprises sulphur/graphene oxide/CNTs compound, described sulphur/graphene oxide/CNTs compound is coated with electroconductive polymer layer, described electroconductive polymer layer is coated with adhesive layer.
In described sulphur/graphene oxide/CNTs compound, the mass ratio of sulphur and graphene oxide is 4: 1, and the mass ratio of sulphur and CNTs is 4: 1; The conducting polymer composite of described electroconductive polymer layer is poly-dopamine, and in positive electrode, the mass ratio of sulphur and poly-dopamine is 2: 1; The binding agent of described adhesive layer is polyacrylic acid, and in positive electrode, the mass ratio of sulphur and binding agent is 4: 1.
Embodiment 2
A kind of lithium sulfur battery anode material, this material comprises sulphur/graphene oxide/CNTs compound, described sulphur/graphene oxide/CNTs compound is coated with electroconductive polymer layer, described electroconductive polymer layer is coated with adhesive layer.
In described sulphur/graphene oxide/CNTs compound, the mass ratio of sulphur and graphene oxide is 5: 2, and the mass ratio of sulphur and CNTs is 4: 1; The conducting polymer composite of described electroconductive polymer layer is poly-dopamine, and in positive electrode, the mass ratio of sulphur and poly-dopamine is 2: 1; The binding agent of described adhesive layer is polyacrylic acid, and in positive electrode, the mass ratio of sulphur and binding agent is 4: 1.
Embodiment 3
A kind of lithium sulfur battery anode material, this material comprises sulphur/graphene oxide/CNTs compound, described sulphur/graphene oxide/CNTs compound is coated with electroconductive polymer layer, described electroconductive polymer layer is coated with adhesive layer.
In described sulphur/graphene oxide/CNTs compound, the mass ratio of sulphur and graphene oxide is 3: 1, and the mass ratio of sulphur and CNTs is 3: 1; The conducting polymer composite of described electroconductive polymer layer is poly-dopamine, and in positive electrode, the mass ratio of sulphur and poly-dopamine is 2: 1; The binding agent of described adhesive layer is polyacrylic acid, and in positive electrode, the mass ratio of sulphur and binding agent is 4: 1.
Embodiment 4
A kind of lithium sulfur battery anode material, this material comprises sulphur/graphene oxide/CNTs compound, described sulphur/graphene oxide/CNTs compound is coated with electroconductive polymer layer, described electroconductive polymer layer is coated with adhesive layer.
In described sulphur/graphene oxide/CNTs compound, the mass ratio of sulphur and graphene oxide is 2: 1, and the mass ratio of sulphur and CNTs is 2: 1; The conducting polymer composite of described electroconductive polymer layer is poly-dopamine, and in positive electrode, the mass ratio of sulphur and poly-dopamine is 5: 3; The binding agent of described adhesive layer is polyacrylic acid, and in positive electrode, the mass ratio of sulphur and binding agent is 5: 2.
Embodiment 5
A kind of lithium sulfur battery anode material, this material comprises sulphur/graphene oxide/CNTs compound, described sulphur/graphene oxide/CNTs compound is coated with electroconductive polymer layer, described electroconductive polymer layer is coated with adhesive layer.
In described sulphur/graphene oxide/CNTs compound, the mass ratio of sulphur and graphene oxide is 5: 4, and the mass ratio of sulphur and CNTs is 2: 1; The conducting polymer composite of described electroconductive polymer layer is poly-dopamine, and in positive electrode, the mass ratio of sulphur and poly-dopamine is 5: 3; The binding agent of described adhesive layer is polyacrylic acid, and the mass ratio of sulphur and binding agent is 5: 2.
Comparative example 1
A kind of lithium sulfur battery anode material, this material comprises sulphur/graphene oxide compound, described sulphur/graphene oxide compound is coated with electroconductive polymer layer, described electroconductive polymer layer is coated with adhesive layer.
In described sulphur/graphene oxide compound, the mass ratio of sulphur and graphene oxide is 4: 1, and the conducting polymer composite of described electroconductive polymer layer is poly-dopamine, and in positive electrode, the mass ratio of sulphur and poly-dopamine is 2: 1; The binding agent of described adhesive layer is polyacrylic acid, and in positive electrode, the mass ratio of sulphur and binding agent is 4: 1.
Comparative example 2
A kind of lithium sulfur battery anode material, this material comprises sulphur/CNTs compound, described sulphur/CNTs compound is coated with electroconductive polymer layer, described electroconductive polymer layer is coated with adhesive layer.
In described sulphur/CNTs compound, the mass ratio of sulphur and CNTs is 4: 1; The conducting polymer composite of described electroconductive polymer layer is poly-dopamine, and in positive electrode, the mass ratio of sulphur and poly-dopamine is 2: 1; The binding agent of described adhesive layer is polyacrylic acid, and in positive electrode, the mass ratio of sulphur and binding agent is 4: 1.
Gained positive electrode and metal lithium sheet are assembled into battery, and at its discharge capacity of 1.0 ~ 3.0V voltage range build-in test and cycle performance, result is as shown in table 1, and in embodiment, the specific discharge capacity of products obtained therefrom is up to 1475.2mAhg
-1, after lower 200 circulations of 1000mA/g, specific capacity conservation rate is greater than 75%, and the acting in conjunction of carbon nano-tube and graphene oxide is conducive to the raising of positive electrode performance (comparative example 1 and comparative example).
Table 1
Above embodiment is only in order to illustrate that technical scheme of the present invention is not intended to limit; those of ordinary skill in the field are to be understood that; can modify to the specific embodiment of the present invention with reference to above-described embodiment or equivalent to replace, these do not depart from any amendment of spirit and scope of the invention or equivalently to replace within the claims that all awaits the reply in application.
Claims (10)
1. a lithium sulfur battery anode material, is characterized in that, this material comprises sulphur/graphene oxide/CNTs compound, described sulphur/graphene oxide/CNTs compound is coated with electroconductive polymer layer, described electroconductive polymer layer is coated with adhesive layer.
2. lithium sulfur battery anode material according to claim 1, is characterized in that, in described sulphur/graphene oxide/CNTs compound, the mass ratio of sulphur powder and graphene oxide is 8: 1 ~ 1: 15.
3. lithium sulfur battery anode material according to claim 2, is characterized in that, in described sulphur/graphene oxide/CNTs compound, the mass ratio of sulphur powder and graphene oxide is 4: 1.
4. lithium sulfur battery anode material according to claim 1, is characterized in that, in described sulphur/graphene oxide/CNTs compound, the mass ratio of sulphur powder and CNTs is 8: 1 ~ 1: 15.
5. lithium sulfur battery anode material according to claim 4, is characterized in that, in described sulphur/graphene oxide/CNTs compound, the mass ratio of sulphur powder and CNTs is 4: 1.
6. lithium sulfur battery anode material according to claim 1, is characterized in that, the macromolecular material in described electroconductive polymer layer is at least containing any one the macromolecular material in amino, carboxyl and hydroxyl.
7. lithium sulfur battery anode material according to claim 6, is characterized in that, described macromolecular material is poly-dopamine, polypyrrole, poly-acetic acid, poly-propionic acid or polyvinyl alcohol.
8. lithium sulfur battery anode material according to claim 1, is characterized in that, in described positive electrode, the mass ratio of sulphur and conducting polymer composite is 5: 1 ~ 1: 10.
9. lithium sulfur battery anode material according to claim 1, is characterized in that, described binding agent is sodium alginate, shitosan, sodium cellulose glycolate or polyacrylic acid.
10. lithium sulfur battery anode material according to claim 1, is characterized in that, in described positive electrode, the mass ratio of sulphur and binding agent is 5: 1 ~ 1: 10.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510382347.1A CN105070887B (en) | 2015-06-25 | 2015-06-25 | A kind of lithium sulfur battery anode material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510382347.1A CN105070887B (en) | 2015-06-25 | 2015-06-25 | A kind of lithium sulfur battery anode material |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105070887A true CN105070887A (en) | 2015-11-18 |
| CN105070887B CN105070887B (en) | 2018-10-02 |
Family
ID=54500206
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510382347.1A Active CN105070887B (en) | 2015-06-25 | 2015-06-25 | A kind of lithium sulfur battery anode material |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105070887B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105609775A (en) * | 2016-02-21 | 2016-05-25 | 钟玲珑 | Preparation method for three-dimensional carbon nanotube/graphene/sulfur electrode slice |
| CN108370069A (en) * | 2016-05-02 | 2018-08-03 | 株式会社Lg化学 | Electrolyte containing polydopamine and lithium-sulfur battery containing electrolyte |
| CN110459755A (en) * | 2019-09-06 | 2019-11-15 | 北京理工大学 | A kind of sulphur/polypyrrole/graphene/carbon nano-tube coextruded film, preparation method and applications |
| CN111554931A (en) * | 2020-05-11 | 2020-08-18 | 中科廊坊过程工程研究院 | Composite positive electrode material, preparation method thereof and application thereof in zinc ion battery |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102447113A (en) * | 2011-12-12 | 2012-05-09 | 南开大学 | Lithium battery with polymer-coated sulfur/carbon composite material as anode |
-
2015
- 2015-06-25 CN CN201510382347.1A patent/CN105070887B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102447113A (en) * | 2011-12-12 | 2012-05-09 | 南开大学 | Lithium battery with polymer-coated sulfur/carbon composite material as anode |
Non-Patent Citations (1)
| Title |
|---|
| 徐桂银等: ""碳纳米管/氧化石墨烯/硫复合正极材料的制备及其电化学性能"", 《物理化学学报》 * |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105609775A (en) * | 2016-02-21 | 2016-05-25 | 钟玲珑 | Preparation method for three-dimensional carbon nanotube/graphene/sulfur electrode slice |
| CN108370069A (en) * | 2016-05-02 | 2018-08-03 | 株式会社Lg化学 | Electrolyte containing polydopamine and lithium-sulfur battery containing electrolyte |
| CN108370069B (en) * | 2016-05-02 | 2021-01-12 | 株式会社Lg化学 | Electrolyte containing polydopamine and lithium-sulfur battery containing electrolyte |
| CN110459755A (en) * | 2019-09-06 | 2019-11-15 | 北京理工大学 | A kind of sulphur/polypyrrole/graphene/carbon nano-tube coextruded film, preparation method and applications |
| CN110459755B (en) * | 2019-09-06 | 2020-12-29 | 北京理工大学 | Sulfur/polypyrrole/graphene/carbon nanotube composite film, preparation method and application thereof |
| CN111554931A (en) * | 2020-05-11 | 2020-08-18 | 中科廊坊过程工程研究院 | Composite positive electrode material, preparation method thereof and application thereof in zinc ion battery |
| CN111554931B (en) * | 2020-05-11 | 2021-09-14 | 中科廊坊过程工程研究院 | Composite positive electrode material, preparation method thereof and application thereof in zinc ion battery |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105070887B (en) | 2018-10-02 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Chen et al. | Hierarchical porous carbon modified with ionic surfactants as efficient sulfur hosts for the high-performance lithium-sulfur batteries | |
| Zhao et al. | A high-performance asymmetric supercapacitor based on Co (OH) 2/graphene and activated carbon electrodes | |
| Han et al. | High energy density sodium-ion capacitors through co-intercalation mechanism in diglyme-based electrolyte system | |
| Gong et al. | High polar polyacrylonitrile as a potential binder for negative electrodes in lithium ion batteries | |
| CN107331888A (en) | A kind of lithium ion battery containing silicon carbon material negative plate and preparation method thereof | |
| CN107316989B (en) | Tin sulfide/sulfur/few-layer graphene composite material and preparation method and application thereof | |
| CN101924211A (en) | Graphene/silicon lithium ion battery cathode material and preparation method thereof | |
| CN104347880A (en) | Lithium ion battery capable of quick charging | |
| CN105529464A (en) | Lithium-sulfur battery | |
| CN101794874A (en) | Electrode with grapheme as conductive additive and application thereof in lithium ion battery | |
| CN105489814A (en) | Preparation method for modified diaphragm for lithium-sulfur battery, modified diaphragm and lithium-sulfur battery adopting multiple layers of modified diaphragms | |
| CN106299304A (en) | A kind of carbon cladding molybdenum sulfide composite and preparation method and application and a kind of sodium-ion battery | |
| Huang et al. | Boosting capacitive sodium-ion storage in electrochemically exfoliated graphite for sodium-ion capacitors | |
| CN105047875A (en) | Preparation method of lithium-sulfur battery cathode material | |
| CN101227015A (en) | Cylinder type lithium ion battery with high power rate and high safety performance | |
| Zhang et al. | Preparation of MnO2 electrodes coated by Sb-doped SnO2 and their effect on electrochemical performance for supercapacitor | |
| CN105070887A (en) | Lithium sulfur battery positive electrode material | |
| CN102360960A (en) | Super capacitor electrode material and super capacitor electrode production method | |
| Yin et al. | Hybrid energy storage devices combining carbon-nanotube/polyaniline supercapacitor with lead-acid battery assembled through a “directly-inserted” method | |
| CN104766976A (en) | Lithium ion secondary battery negative pole piece and preparation method thereof | |
| CN107464934A (en) | One kind is based on graphene/carbon nano-tube combined conductive agent anode sizing agent preparation method | |
| CN203367417U (en) | Metal foil provided with electric conduction protective coating | |
| CN207732002U (en) | A kind of high power capacity lithium-sulfur cell | |
| CN113285050A (en) | Li-M-X-based solid lithium battery anode and preparation method thereof | |
| CN107221699A (en) | A kind of novel high voltage lithium ion battery and energy storage elements based on silicium cathode |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information | ||
| CB02 | Change of applicant information |
Address after: 100095 Haidian District hot springs town, Beijing Village Applicant after: China Hangfa Beijing Institute of Aerial Materials Address before: 100095 Haidian District hot springs town, Beijing Village Applicant before: Beijing Institute of Aeronautical Materials, China Aviation Industry Group Corporation |
|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20211210 Address after: No. 108, 1f, building 1, yard 3, Fengzhi East Road, Haidian District, Beijing 100094 Patentee after: BEIJING GRAPHENE TECHNOLOGY RESEARCH INSTITUTE Co.,Ltd. Address before: 100095, Beijing, Haidian District Hot Springs Village ring Patentee before: AECC BEIJING INSTITUTE OF AERONAUTICAL MATERIALS |