CN109950517A - A kind of graphene lithium battery composite material and preparation method - Google Patents
A kind of graphene lithium battery composite material and preparation method Download PDFInfo
- Publication number
- CN109950517A CN109950517A CN201910330064.0A CN201910330064A CN109950517A CN 109950517 A CN109950517 A CN 109950517A CN 201910330064 A CN201910330064 A CN 201910330064A CN 109950517 A CN109950517 A CN 109950517A
- Authority
- CN
- China
- Prior art keywords
- parts
- graphene
- composite material
- lithium battery
- battery composite
- 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.)
- Pending
Links
Classifications
-
- 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
- Battery Electrode And Active Subsutance (AREA)
Abstract
The invention discloses a kind of graphene lithium battery composite materials, are related to technical field of lithium batteries, mainly for solving the problems, such as existing graphene lithium battery composite material stability difference and at high cost；The graphene lithium battery composite material, including below according to the raw material of parts by weight: 45~65 parts of positive electrode, 30~50 parts of graphene, 28~36 parts of polyvinyl alcohol, 10~16 parts of polyethylene glycol, 10~14 parts of polyester fiber, 5~9 parts of dimethyl carbonate, 5~25 parts of silica 1,2~6 parts of sodium hydroxide solution, 50~80 parts of dehydrated alcohol, 2~6 parts of acrylamide, 2~6 parts of titanium dioxide, 4~10 parts of trifluoromethanesulfonic acid lithium.The invention also discloses the preparation methods of the graphene lithium battery composite material.Graphene lithium battery composite material prepared by the present invention with high security, it is at low cost, the feature of environmental protection is high the advantages that, have good market value.
Description
Technical field
The present invention relates to a kind of graphene lithium battery, specifically a kind of graphene lithium battery composite material and its preparation side
Method.
Background technique
It by lithium metal or lithium alloy is negative electrode material, using the battery of non-aqueous electrolytic solution that " lithium battery ", which is a kind of,.Lithium
Battery is broadly divided into two classes: lithium metal battery and lithium ion battery, and lithium ion battery does not contain the lithium of metallic state, and being can
With charging, lithium metal battery safety, specific capacity, self-discharge rate and the ratio of performance to price are superior to lithium ion battery.Due to lithium
The chemical characteristic of metal is very active, so that the processing of lithium metal, preservation, use, very high to environmental requirement.With scientific skill
The development of art, present lithium battery have become mainstream.
Graphene have excellent optics, electricity, mechanical characteristic, materialogy, micro-nano technology, the energy, biomedicine and
Drug delivery etc. is with important application prospects, and the characteristic of graphene makes before field of lithium has a wide range of applications
Scape, but graphene in use there is it is unstable low with volume energy density the problems such as, limit graphene preferably
Play its characteristic.
Summary of the invention
The purpose of the present invention is to provide a kind of graphene lithium battery composite material and preparation methods, solve existing stone
Black alkene lithium battery composite material stability difference and problem at high cost.
To achieve the above object, the invention provides the following technical scheme:
A kind of graphene lithium battery composite material, including below according to the raw material of parts by weight: 45~65 parts of positive electrode, graphene
30~50 parts, 28~36 parts of polyvinyl alcohol, 10~16 parts of polyethylene glycol, 10~14 parts of polyester fiber, 5~9 parts of dimethyl carbonate,
5~25 parts of silica 1,2~6 parts of sodium hydroxide solution, 50~80 parts of dehydrated alcohol, 2~6 parts of acrylamide, titanium dioxide 2
~6 parts, 4~10 parts of trifluoromethanesulfonic acid lithium.
Based on the above technical solution, the present invention also provides following optional technical solutions:
In a kind of optinal plan: including below according to the raw material of parts by weight: 50~60 parts of positive electrode, graphene 34~46
Part, 30~34 parts of polyvinyl alcohol, 12~14 parts of polyethylene glycol, 11~13 parts of polyester fiber, 6~8 parts of dimethyl carbonate, titanium dioxide
17~23 parts of silicon, 3~5 parts of sodium hydroxide solution, 60~70 parts of dehydrated alcohol, 3~5 parts of acrylamide, 3~5 parts of titanium dioxide,
6~8 parts of trifluoromethanesulfonic acid lithium.
In a kind of optinal plan: including below according to the raw material of parts by weight: 55 parts of positive electrode, gathers 40 parts of graphene
32 parts of vinyl alcohol, 13 parts of polyethylene glycol, 12 parts of polyester fiber, 7 parts of dimethyl carbonate, 20 parts of silica, sodium hydroxide solution 4
Part, 65 parts of dehydrated alcohol, 4 parts of acrylamide, 4 parts of titanium dioxide, 7 parts of trifluoromethanesulfonic acid lithium.
In a kind of optinal plan: the positive electrode is one of lithium nickelate, cobalt acid lithium and lithium borate.
The preparation method of the graphene lithium battery composite material, steps are as follows:
Step 1: by positive electrode, graphene, polyvinyl alcohol, polyethylene glycol, silica, titanium dioxide, trifluoromethanesulfonic acid lithium
It is put into ultrafine crusher and is crushed, using 50 meshes, obtain mixture A；
Step 2: it is uniform that dimethyl carbonate, sodium hydroxide solution, dehydrated alcohol, acrylamide being put into container for stirring, obtained
Mixture B；
Step 3: mixture A and mixture B being stirred evenly, then polyester fiber is internally added, heating water bath is carried out, is mixed
Close object C；
Step 4: the temperature of mixture C is cooled to room temperature, then is passed through nitrogen into mixture C and is carried out heating carbonization, heating carbonization
Time be 30min, composite material can be obtained after being cooled to room temperature.
In a kind of optinal plan: the mixing time in the step 2 is 5min.
In a kind of optinal plan: the heating water bath time in the step 3 is 15min, and water bath heating temperature is 72 DEG C.
Compared to the prior art, beneficial effects of the present invention are as follows:
1, graphene lithium battery composite material prepared by the present invention, it is at low cost, improve graphene in the stability of use process,
So that graphene preferably plays a role；
2, by adding dimethyl carbonate in lithium battery composite material, it can be improved lithium battery in the peace of production and use process
Full property and reduce pollution of the lithium battery to environment.
Specific embodiment
Each embodiment cited by the present invention is only to illustrate the present invention, is not used to limit the scope of the present invention.To this
Any modification apparent easy to know or change are without departure from spirit and scope of the invention made by invention.
Embodiment 1
A kind of graphene lithium battery composite material, including below according to the raw material of parts by weight: 45 parts of positive electrode, graphene 30
Part, 28 parts of polyvinyl alcohol, 10 parts of polyethylene glycol, 10 parts of polyester fiber, 5 parts of dimethyl carbonate, 5 parts of silica 1, sodium hydroxide
2 parts of solution, 50 parts of dehydrated alcohol, 2 parts of acrylamide, 2 parts of titanium dioxide, 4 parts of trifluoromethanesulfonic acid lithium.
Wherein, the positive electrode is one of lithium nickelate, cobalt acid lithium and lithium borate.
The preparation method of the graphene lithium battery composite material, steps are as follows:
Step 1: by positive electrode, graphene, polyvinyl alcohol, polyethylene glycol, silica, titanium dioxide, trifluoromethanesulfonic acid lithium
It is put into ultrafine crusher and is crushed, using 50 meshes, obtain mixture A；
Step 2: it is uniform that dimethyl carbonate, sodium hydroxide solution, dehydrated alcohol, acrylamide being put into container for stirring, obtained
Mixture B, the time of stirring are 5min；
Step 3: mixture A and mixture B being stirred evenly, then polyester fiber is internally added, heating water bath is carried out, is mixed
Object C, heating water bath 15min are closed, bath temperature is 72 DEG C；
Step 4: the temperature of mixture C is cooled to room temperature, then is passed through nitrogen into mixture C and is carried out heating carbonization, heating carbonization
Time be 30min, composite material can be obtained after being cooled to room temperature.
Embodiment 2
A kind of graphene lithium battery composite material, including below according to the raw material of parts by weight: 50 parts of positive electrode, graphene 34
Part, 30 parts of polyvinyl alcohol, 12 parts of polyethylene glycol, 11 parts of polyester fiber, 6 parts of dimethyl carbonate, 7 parts of silica 1, sodium hydroxide
3 parts of solution, 60 parts of dehydrated alcohol, 3 parts of acrylamide, 3 parts of titanium dioxide, 6 parts of trifluoromethanesulfonic acid lithium.
Wherein, the positive electrode is one of lithium nickelate, cobalt acid lithium and lithium borate.
The preparation method of the graphene lithium battery composite material, steps are as follows:
Step 1: by positive electrode, graphene, polyvinyl alcohol, polyethylene glycol, silica, titanium dioxide, trifluoromethanesulfonic acid lithium
It is put into ultrafine crusher and is crushed, using 50 meshes, obtain mixture A；
Step 2: it is uniform that dimethyl carbonate, sodium hydroxide solution, dehydrated alcohol, acrylamide being put into container for stirring, obtained
Mixture B, the time of stirring are 5min；
Step 3: mixture A and mixture B being stirred evenly, then polyester fiber is internally added, heating water bath is carried out, is mixed
Object C, heating water bath 15min are closed, bath temperature is 72 DEG C；
Step 4: the temperature of mixture C is cooled to room temperature, then is passed through nitrogen into mixture C and is carried out heating carbonization, heating carbonization
Time be 30min, composite material can be obtained after being cooled to room temperature.
Embodiment 3
A kind of graphene lithium battery composite material, including below according to the raw material of parts by weight: 55 parts of positive electrode, graphene 40
Part, 32 parts of polyvinyl alcohol, 13 parts of polyethylene glycol, 12 parts of polyester fiber, 7 parts of dimethyl carbonate, 20 parts of silica, sodium hydroxide
4 parts of solution, 65 parts of dehydrated alcohol, 4 parts of acrylamide, 4 parts of titanium dioxide, 7 parts of trifluoromethanesulfonic acid lithium.
Wherein, the positive electrode is one of lithium nickelate, cobalt acid lithium and lithium borate.
The preparation method of the graphene lithium battery composite material, steps are as follows:
Step 1: by positive electrode, graphene, polyvinyl alcohol, polyethylene glycol, silica, titanium dioxide, trifluoromethanesulfonic acid lithium
It is put into ultrafine crusher and is crushed, using 50 meshes, obtain mixture A；
Step 2: it is uniform that dimethyl carbonate, sodium hydroxide solution, dehydrated alcohol, acrylamide being put into container for stirring, obtained
Mixture B, the time of stirring are 5min；
Step 3: mixture A and mixture B being stirred evenly, then polyester fiber is internally added, heating water bath is carried out, is mixed
Object C, heating water bath 15min are closed, bath temperature is 72 DEG C；
Step 4: the temperature of mixture C is cooled to room temperature, then is passed through nitrogen into mixture C and is carried out heating carbonization, heating carbonization
Time be 30min, composite material can be obtained after being cooled to room temperature.
Embodiment 4
A kind of graphene lithium battery composite material, 60 parts of positive electrode, 46 parts of graphene, 34 parts of polyvinyl alcohol, polyethylene glycol 14
Part, 13 parts of polyester fiber, 8 parts of dimethyl carbonate, 23 parts of silica, 5 parts of sodium hydroxide solution, 70 parts of dehydrated alcohol, propylene
5 parts of amide, 5 parts of titanium dioxide, 8 parts of trifluoromethanesulfonic acid lithium.
Wherein, the positive electrode is one of lithium nickelate, cobalt acid lithium and lithium borate.
The preparation method of the graphene lithium battery composite material, steps are as follows:
Step 1: by positive electrode, graphene, polyvinyl alcohol, polyethylene glycol, silica, titanium dioxide, trifluoromethanesulfonic acid lithium
It is put into ultrafine crusher and is crushed, using 50 meshes, obtain mixture A；
Step 2: it is uniform that dimethyl carbonate, sodium hydroxide solution, dehydrated alcohol, acrylamide being put into container for stirring, obtained
Mixture B, the time of stirring are 5min；
Step 3: mixture A and mixture B being stirred evenly, then polyester fiber is internally added, heating water bath is carried out, is mixed
Object C, heating water bath 15min are closed, bath temperature is 72 DEG C；
Step 4: the temperature of mixture C is cooled to room temperature, then is passed through nitrogen into mixture C and is carried out heating carbonization, heating carbonization
Time be 30min, composite material can be obtained after being cooled to room temperature.
Embodiment 5
A kind of graphene lithium battery composite material, 65 parts of positive electrode, 50 parts of graphene, 36 parts of polyvinyl alcohol, polyethylene glycol 16
Part, 14 parts of polyester fiber, 9 parts of dimethyl carbonate, 25 parts of silica, 6 parts of sodium hydroxide solution, 80 parts of dehydrated alcohol, propylene
6 parts of amide, 6 parts of titanium dioxide, 10 parts of trifluoromethanesulfonic acid lithium.
Wherein, the positive electrode is one of lithium nickelate, cobalt acid lithium and lithium borate.
The preparation method of the graphene lithium battery composite material, steps are as follows:
Step 1: by positive electrode, graphene, polyvinyl alcohol, polyethylene glycol, silica, titanium dioxide, trifluoromethanesulfonic acid lithium
It is put into ultrafine crusher and is crushed, using 50 meshes, obtain mixture A；
Step 2: it is uniform that dimethyl carbonate, sodium hydroxide solution, dehydrated alcohol, acrylamide being put into container for stirring, obtained
Mixture B, the time of stirring are 5min；
Step 3: mixture A and mixture B being stirred evenly, then polyester fiber is internally added, heating water bath is carried out, is mixed
Object C, heating water bath 15min are closed, bath temperature is 72 DEG C；
Step 4: the temperature of mixture C is cooled to room temperature, then is passed through nitrogen into mixture C and is carried out heating carbonization, heating carbonization
Time be 30min, composite material can be obtained after being cooled to room temperature.
The above, the only specific embodiment of the disclosure, but the protection scope of the disclosure is not limited thereto, it is any
Those familiar with the art can easily think of the change or the replacement in the technical scope that the disclosure discloses, and should all contain
It covers within the protection scope of the disclosure.Therefore, the protection scope of the disclosure should be subject to the protection scope in claims.
Claims (7)
1. a kind of graphene lithium battery composite material, which is characterized in that including below according to the raw material of parts by weight: positive electrode 45
~65 parts, 30~50 parts of graphene, 28~36 parts of polyvinyl alcohol, 10~16 parts of polyethylene glycol, 10~14 parts of polyester fiber, carbonic acid
5~9 parts of dimethyl ester, 5~25 parts of silica 1,2~6 parts of sodium hydroxide solution, 50~80 parts of dehydrated alcohol, acrylamide 2~
6 parts, 2~6 parts of titanium dioxide, 4~10 parts of trifluoromethanesulfonic acid lithium.
2. graphene lithium battery composite material according to claim 1, which is characterized in that including below according to parts by weight
Raw material: 50~60 parts of positive electrode, 34~46 parts of graphene, 30~34 parts of polyvinyl alcohol, 12~14 parts of polyethylene glycol, polyester are fine
11~13 parts of dimension, 6~8 parts of dimethyl carbonate, 7~23 parts of silica 1,3~5 parts of sodium hydroxide solution, dehydrated alcohol 60~
70 parts, 3~5 parts of acrylamide, 3~5 parts of titanium dioxide, 6~8 parts of trifluoromethanesulfonic acid lithium.
3. graphene lithium battery composite material according to claim 2, which is characterized in that including below according to parts by weight
Raw material: 55 parts of positive electrode, 40 parts of graphene, 32 parts of polyvinyl alcohol, 13 parts of polyethylene glycol, 12 parts of polyester fiber, carbonic acid diformazan
7 parts of ester, 20 parts of silica, 4 parts of sodium hydroxide solution, 65 parts of dehydrated alcohol, 4 parts of acrylamide, 4 parts of titanium dioxide, trifluoro
7 parts of methanesulfonic acid lithium.
4. graphene lithium battery composite material according to claim 1, which is characterized in that the positive electrode is nickel acid
One of lithium, cobalt acid lithium and lithium borate.
5. a kind of preparation method of the graphene lithium battery composite material as described in Claims 1 to 4 is any, which is characterized in that
Steps are as follows:
Step 1: by positive electrode, graphene, polyvinyl alcohol, polyethylene glycol, silica, titanium dioxide, trifluoromethanesulfonic acid lithium
It is put into ultrafine crusher and is crushed, using 50 meshes, obtain mixture A；
Step 2: it is uniform that dimethyl carbonate, sodium hydroxide solution, dehydrated alcohol, acrylamide being put into container for stirring, obtained
Mixture B；
Step 3: mixture A and mixture B being stirred evenly, then polyester fiber is internally added, heating water bath is carried out, is mixed
Close object C；
Step 4: the temperature of mixture C is cooled to room temperature, then is passed through nitrogen into mixture C and is carried out heating carbonization, heating carbonization
Time be 30min, composite material can be obtained after being cooled to room temperature.
6. the preparation method of graphene lithium battery composite material according to claim 5, which is characterized in that the step 2
In mixing time be 5min.
7. the preparation method of graphene lithium battery composite material according to claim 5, which is characterized in that the step 3
In the heating water bath time be 15min, water bath heating temperature be 72 DEG C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910330064.0A CN109950517A (en) | 2019-04-23 | 2019-04-23 | A kind of graphene lithium battery composite material and preparation method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910330064.0A CN109950517A (en) | 2019-04-23 | 2019-04-23 | A kind of graphene lithium battery composite material and preparation method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109950517A true CN109950517A (en) | 2019-06-28 |
Family
ID=67014737
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910330064.0A Pending CN109950517A (en) | 2019-04-23 | 2019-04-23 | A kind of graphene lithium battery composite material and preparation method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109950517A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112151785A (en) * | 2020-10-15 | 2020-12-29 | 河源市东聚能源科技有限公司 | Graphene lithium battery composite material and preparation method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103296277A (en) * | 2012-03-01 | 2013-09-11 | 复旦大学 | Graphite intercalation compound lithium-ion battery negative electrode material, as well as preparation method and application thereof |
| CN103500826A (en) * | 2013-09-30 | 2014-01-08 | 山东聊城鲁西化工集团有限责任公司 | Preparation method of positive composite material of graphene-lithium battery |
| US20170149039A1 (en) * | 2015-11-20 | 2017-05-25 | Samsung Electronics Co., Ltd. | Electrode-composite separator assembly for lithium battery and battery including the same |
| CN108598407A (en) * | 2018-04-19 | 2018-09-28 | 崔晓迪 | A kind of lithium battery composite material and preparation method |
| CN109087724A (en) * | 2016-08-20 | 2018-12-25 | 漳州龙文区信创友工业设计有限公司 | A kind of preparation method of Graphene electrodes material |
-
2019
- 2019-04-23 CN CN201910330064.0A patent/CN109950517A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103296277A (en) * | 2012-03-01 | 2013-09-11 | 复旦大学 | Graphite intercalation compound lithium-ion battery negative electrode material, as well as preparation method and application thereof |
| CN103500826A (en) * | 2013-09-30 | 2014-01-08 | 山东聊城鲁西化工集团有限责任公司 | Preparation method of positive composite material of graphene-lithium battery |
| US20170149039A1 (en) * | 2015-11-20 | 2017-05-25 | Samsung Electronics Co., Ltd. | Electrode-composite separator assembly for lithium battery and battery including the same |
| CN109087724A (en) * | 2016-08-20 | 2018-12-25 | 漳州龙文区信创友工业设计有限公司 | A kind of preparation method of Graphene electrodes material |
| CN108598407A (en) * | 2018-04-19 | 2018-09-28 | 崔晓迪 | A kind of lithium battery composite material and preparation method |
Non-Patent Citations (1)
| Title |
|---|
| 刘耀华: "《有机化学中的选择性氧化作用》", 30 June 2008 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112151785A (en) * | 2020-10-15 | 2020-12-29 | 河源市东聚能源科技有限公司 | Graphene lithium battery composite material and preparation method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101587948B (en) | Preparation method for LiTiO/C compound electrode material | |
| CN105185954B (en) | A kind of LiAlO2Coat LiNi1-xCoxO2Anode material for lithium-ion batteries and preparation method thereof | |
| CN103117380A (en) | Preparation method of manganese Li-NiCoMn ternary material for lithium ion battery | |
| CN106159233B (en) | A kind of surface modifying method of anode material for lithium-ion batteries | |
| Zhao et al. | Novel solvo/hydrothermal assisted co-precipitation method for faceted LiNi1/3Mn1/3Co1/3O2 cathode material | |
| CN105280912B (en) | A kind of preparation method of oxide coated lithium ion battery positive electrode nickel ion doped | |
| CN104064739A (en) | Tin cobalt alloy/ graphene composite material and preparation method thereof | |
| CN102328952A (en) | Preparation method for spherical lithium titanate material | |
| CN109768268A (en) | Manganate cathode material for lithium and preparation method thereof | |
| Li et al. | Stabilize lithium metal anode through constructing a lithiophilic viscoelastic interface based on hydroxypropyl methyl cellulose | |
| CN106099083A (en) | The cladded type nickel ion doped material of a kind of hydro-thermal method surface modification, lithium battery and preparation method thereof | |
| CN110085831A (en) | A kind of metatitanic acid lithium cladding nickel-cobalt-manganternary ternary anode material and preparation method thereof | |
| CN102275890A (en) | Microwave-assisted synthesis method of nanometer lithium iron phosphate | |
| CN104332618A (en) | Nickel-cobalt-lithium manganese positive electrode material with boron-lithium composite oxide clad on surface, and preparation method thereof | |
| CN105958039A (en) | Preparation method of modified lithium nickel manganese oxide cathode material, and high-voltage lithium ion battery | |
| CN102070187B (en) | Method for preparing spinel lithium titanate serving as negative material of lithium ion battery | |
| CN102447097A (en) | Preparation method of lithium ion cathode material nickel manganese cobalt | |
| CN108598386A (en) | Iron manganese phosphate for lithium base composite positive pole and preparation method thereof | |
| CN105322150A (en) | Preparation technology of modified positive material lithium nickel manganese oxide for lithium-ion battery | |
| CN109950517A (en) | A kind of graphene lithium battery composite material and preparation method | |
| CN105084428A (en) | Cobaltous hydroxide and preparation method thereof, and method for preparing lithium cobaltate by using cobaltous hydroxide | |
| CN106784657A (en) | A kind of method that sodium and iron codope prepare High-performance lithium manganate anode material | |
| CN105174240A (en) | Nanorod-assembled lithium iron manganese phosphate microsphere and composite material and preparation methods thereof | |
| CN106058234B (en) | A kind of TiO of classifying porous nucleocapsid2Sphere material and its preparation method and application | |
| CN101920953B (en) | Preparation method of spherical anode material LiVPO4F |
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 | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20200529 Address after: 277800 room 115, building 1, workshop of Zaozhuang Keshun Digital Co., Ltd., east side of Fuyuan Fourth Road, high tech Zone, Zaozhuang City, Shandong Province Applicant after: Shandong high quality new energy testing Co.,Ltd. Address before: 277800 National Lithium Battery Quality Supervision and Inspection Center of Fuyuan Third Road, Zaozhuang High-tech Zone, Shandong Province Applicant before: Zaozhuang Institute of Supervision AND Inspection Product Quality |
|
| TA01 | Transfer of patent application right | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190628 |
|
| RJ01 | Rejection of invention patent application after publication |