CN105406039A - Silicon-carbon anode paste and preparation method thereof - Google Patents
Silicon-carbon anode paste and preparation method thereof Download PDFInfo
- Publication number
- CN105406039A CN105406039A CN201510737797.8A CN201510737797A CN105406039A CN 105406039 A CN105406039 A CN 105406039A CN 201510737797 A CN201510737797 A CN 201510737797A CN 105406039 A CN105406039 A CN 105406039A
- Authority
- CN
- China
- Prior art keywords
- carbon
- silicon
- preparation
- add
- deionized water
- 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
- H01M4/364—Composites as mixtures
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B82—NANOTECHNOLOGY
- B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
- B82Y40/00—Manufacture or treatment of nanostructures
-
- 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
- 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
- H01M4/386—Silicon or alloys based on silicon
-
- 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
- H01M4/58—Selection of substances as active materials, active masses, active liquids of inorganic compounds other than oxides or hydroxides, e.g. sulfides, selenides, tellurides, halogenides or LiCoFy; of polyanionic structures, e.g. phosphates, silicates or borates
- H01M4/583—Carbonaceous material, e.g. graphite-intercalation compounds or CFx
- H01M4/587—Carbonaceous material, e.g. graphite-intercalation compounds or CFx for inserting or intercalating light metals
-
- 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)
- Engineering & Computer Science (AREA)
- General Chemical & Material Sciences (AREA)
- Electrochemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Nanotechnology (AREA)
- Composite Materials (AREA)
- General Physics & Mathematics (AREA)
- Crystallography & Structural Chemistry (AREA)
- Manufacturing & Machinery (AREA)
- Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- Materials Engineering (AREA)
- Inorganic Chemistry (AREA)
- Battery Electrode And Active Subsutance (AREA)
Abstract
The invention relates to a silicon-carbon anode paste and a preparation method thereof, and belongs to the technical field of lithium-ion batteries. The silicon-carbon anode paste comprises an acrylonitrile multi-component copolymerized LA-type water-based electrode binder, a carbon black Super-p conductive agent, a single-arm carbon nanotube suspension emulsion, a silicon-carbon/carbon nanotube composite anode material and deionized water. The preparation method of the anode paste comprises the following steps: (1) adding the acrylonitrile multi-component copolymerized LA-type water-based electrode binder and the deionized water to a planetary stirrer for stirring, preparing a binder solution and standing the binder solution for later use; (2) putting the carbon black Super-p conductive agent and the single-arm carbon nanotube suspension emulsion to the planetary stirrer for ball-milling and wet mixing; (3) putting the mixed two conductive agents and the silicon-carbon/carbon nanotube composite anode material into the planetary stirrer for carrying out thick material stirring; and (4) adding the binder solution for mixing and stirring, finally adding the deionized water to adjust the viscosity of the anode paste and sieving the paste.
Description
Technical field
The invention belongs to technical field of lithium batteries, specifically relate to a kind of silicon-carbon cathode slurry and preparation method thereof.
Background technology
Lithium ion battery energy density is large, has extended cycle life, high rate performance and security performance good, environmental protection, becomes main energy sources product.Along with the develop rapidly of electronics technology, electronics and power product be miniaturization and lightweight more and more, and performance of lithium ion battery requires more and more higher, the especially requirement of lithium ion battery energy density, while not affecting serviceability, lithium ion battery requires to have higher energy density.People are by constantly seeking and also constantly seeking and improving cathode specific capacity to improve lithium ion battery energy density while improving positive electrode specific capacity.
Graphite negative electrodes material, owing to having the intrinsic advantages such as better cycle performance, obtained applying the most widely, but graphite negative electrodes material lithium storage content is lower, and intercalation potential is close to lithium metal current potential, and high magnification charges difficult and there is potential safety hazard.Silicon-carbon composite cathode material is as the late comer of lithium ion battery negative material, lithium storage content is higher, but electric conductivity is relative with cycle performance poor, be mainly silicon carbon material under high level deintercalation condition, there is bulk effect, cause coming off of material and collector in charge and discharge process, affect the cycle performance of battery, thus reasonably conductive agent and binding agent and blank preparation technics most important to silicon-carbon cathode material cycle performance.
Summary of the invention
The object of this invention is to provide a kind of silicon-carbon cathode slurry and preparation method thereof, the technical problem that solve finds rational cathode conductive agent and binding agent, and blank preparation technics, improves the cycle performance of silicon-carbon cathode material.
The present invention is realized by following technical proposals.
A kind of silicon-carbon cathode slurry and preparation method thereof, is characterized in that: a kind of silicon-carbon cathode pulp components comprises acrylonitrile multi-component copolymer LA type water-based binders for electrodes, carbon black Super-p conductive agent, single armed carbon nano-tube suspension emulsion, silicon-carbon/carbon nano-tube composite negative pole material and deionized water.
A kind of silicon-carbon cathode slurry and preparation method thereof, is characterized in that: a kind of concrete steps of silicon-carbon cathode slurry preparation method are:
(1) acrylonitrile multi-component copolymer LA type water-based binders for electrodes and deionized water add in planetary mixer and stir, and prepare binder solution stand for standby use;
(2) carbon black Super-p conductive agent powder and single armed carbon nano-tube suspension emulsion put into planetary ball mill wet ball-milling;
(3) the two kinds of conductive agents mixed and silicon-carbon/carbon nano-tube composite negative pole material are put into planetary mixer and are carried out thick material stirring;
(4) add binder solution mix and blend, finally add deionized water and stirring and regulate cathode size viscosity, 150 ~ 200 mesh sieves crossed by slurry.
Above-mentioned a kind of silicon-carbon cathode slurry preparation method, is characterized in that: the acrylonitrile multi-component copolymer LA type water-based binders for electrodes described in step (1) and deionized water add with mass ratio 1:2 ~ 3, mixing time 1 ~ 2h.
Above-mentioned a kind of silicon-carbon cathode slurry preparation method, is characterized in that: the carbon black Super-p conductive agent powder described in step (2) and single armed carbon nano-tube suspension emulsion add with mass ratio 1:55 ~ 56, mixing time 1 ~ 2h.
Above-mentioned a kind of silicon-carbon cathode slurry preparation method, is characterized in that: mix two kinds of conductive agents described in step (3) and silicon-carbon/carbon nano-tube composite negative pole material add with mass ratio 1:1.8 ~ 1.9, mixing time 1 ~ 2h.
Above-mentioned a kind of silicon-carbon cathode slurry preparation method, it is characterized in that: the binder solution added described in step (4) and silicon-carbon/carbon nano-tube composite negative pole material add with mass ratio 1:1.3 ~ 1.4, mixing time 2 ~ 3h, cathode size viscosity is adjusted to 2000 ~ 6000mpa.s.
Advantage of the present invention and effect are:
Silicon-carbon cathode active material adopts silicon-carbon/carbon nano-tube composite negative pole material, conductive agent adopts carbon black Super-p to mix the agent of part carbon nanotube conducting, carbon nanotube conducting agent is similar to silicon-carbon/outer field carbon structure of carbon nano-tube composite negative pole material, both are easy to better be connected, add the tightness degree of negative material, improve compacted density and the electric conductivity of negative material, the cycle performance being conducive to battery promotes.
Conductive agent adopts carbon black Super-p to mix the agent of part carbon nanotube conducting, binding agent adopts acrylonitrile multi-component copolymer aqueous dispersions, carbon nanotube conducting agent and acrylonitrile multi-component copolymer aqueous dispersions binding agent have good ductility, the Swelling and contraction repeatedly of silicon-carbon composite cathode material volume can be born, be conducive to the cycle performance improving material.
Conductive agent is beaten with silicon-carbon/carbon nano-tube composite negative pole material is thick after using ball mill to carry out ball milling again, last and glue dispersion soln mix and blend.Composite material is thick beats the frictional force that can increase between material granule, improves the mixing uniformity of material, and last and binder solution mix and blend, reduces the destruction to colloform texture, be conducive to the processing characteristics of slurry.
Accompanying drawing explanation
Fig. 1 is that in embodiment, cathode size prepares 20Ah-3.2V soft-package battery cycle performance curve chart.
Embodiment
The present invention is by the following technical solutions: silicon-carbon cathode pulp components comprises acrylonitrile multi-component copolymer LA type water-based binders for electrodes, carbon black Super-p conductive agent, single armed carbon nano-tube suspension emulsion, silicon-carbon/carbon nano-tube composite negative pole material and deionized water.
The acrylonitrile multi-component copolymer LA type water-based binders for electrodes of solid content 15.0 ± 0.2% and deionized water are added in planetary mixer with mass ratio 1:2 ~ 3 and stirs 1 ~ 2h, revolution speed 10 ~ 20r/min, rotational velocity is 500 ~ 800r/min, prepares binder solution stand for standby use.
The single armed carbon nano-tube suspension emulsion of carbon black Super-p conductive agent powder and solid content 0.2 ± 0.01% is put into planetary ball mill wet ball-milling with mass ratio 1:55 ~ 56, revolution speed 10 ~ 30r/min, rotational velocity 50 ~ 80r/min, Ball-milling Time 1 ~ 2h.
Mix two kinds of conductive agents and silicon-carbon/carbon nano-tube composite negative pole material are put into planetary mixer with mass ratio 1:1.8 ~ 1.9 and carries out thick material stirring, revolution speed 10 ~ 15r/min, rotational velocity is 500 ~ 800r/min, mixing time 1 ~ 2h.
Add binder solution mix and blend again, the binder solution added and silicon-carbon/carbon nano-tube composite negative pole material mass ratio are 1:1.3 ~ 1.4, revolution speed 10 ~ 20r/min, rotational velocity is 600 ~ 1000r/min, mixing time 2 ~ 3h, finally add deionized water and stirring and regulate cathode size viscosity to 2000 ~ 7000mpa.s, solid content 40 ~ 50%.150 ~ 200 mesh sieves crossed by slurry.
Embodiment
Acrylonitrile multi-component copolymer LA type water-based binders for electrodes LA133(Chengdu Yindile Power Source Science and Technology Co., Ltd by solid content 15.0 ± 0.2%) 25 ± 0.005kg mixes with deionized water 62.5 ± 0.005kg to add in planetary mixer (Guangzhou good luck mixing apparatus Co., Ltd HY-DLH (100L)) and stirs 1 ~ 2h, revolution speed 10 ~ 20r/min, rotational velocity is 500 ~ 800r/min, prepares binder solution stand for standby use.
1 ± 0.005kg carbon black Super-p conductive agent powder (Shanghai Hui Pu industrial chemical Co., Ltd) is on average mixed with the single armed carbon nano-tube suspension emulsion (European OCSiAl company's T UBALLSWCNT) of 55 ± 0.005kg solid content 0.2 ± 0.01% and puts into planetary ball mill (Changsha meter Qi instrument and equipment Co., Ltd MITR-QM-QX-100L) four alumina balls grinding jar wet ball-millings; alumina balls diameter 3mm; ball gross mass 50 ± 0.1kg; revolution speed 20r/min; rotational velocity 60r/min, Ball-milling Time 2h.
Get two kinds of conductive agents that 50.9 ± 0.005kg mixes to mix with 96 ± 0.005kg silicon-carbon/carbon nano-tube composite negative pole material and put into planetary mixer (Guangzhou good luck mixing apparatus Co., Ltd HY-DLH (200L)) and carry out thick material stirring, revolution speed 15r/min, rotational velocity is 500r/min, mixing time 1h.
Add 70 ± 0.005kg binder solution mix and blend again, revolution speed 20r/min, rotational velocity is 1000r/min, mixing time 3h, finally adding 0.490 ± 0.005kg deionized water and stirring regulates cathode size viscosity to 6500mpa.s, solid content 46%, 150 mesh sieves crossed by slurry, obtain cathode size.
Use this cathode size to mate iron phosphate lithium positive pole active material and prepare the test of 20Ah-3.2V soft bag lithium ionic cell, battery weight specific capacity reaches 160 ~ 162Wh/kg, comparatively traditional handicraft uses graphite negative electrodes material to prepare 20Ah-3.2V lithium ion battery gravimetric specific energy and at least improves 5%, and 1C charge and discharge cycle life keeps more than 2000 times, cycle performance curve as shown in Figure 1.
Above-described embodiment has been described in detail technical scheme of the present invention; be understood that and the foregoing is only specific embodiments of the invention; be not limited to the present invention; all any amendments and improvement etc. made in spirit of the present invention, all should be included within protection scope of the present invention.
Claims (6)
1. silicon-carbon cathode slurry and preparation method thereof, is characterized in that: a kind of silicon-carbon cathode pulp components comprises acrylonitrile multi-component copolymer LA type water-based binders for electrodes, carbon black Super-p conductive agent, single armed carbon nano-tube suspension emulsion, silicon-carbon/carbon nano-tube composite negative pole material and deionized water.
2. silicon-carbon cathode slurry and preparation method thereof, is characterized in that: a kind of concrete steps of silicon-carbon cathode slurry preparation method are:
(1) acrylonitrile multi-component copolymer LA type water-based binders for electrodes and deionized water add in planetary mixer and stir, and prepare binder solution stand for standby use;
(2) carbon black Super-p conductive agent powder and single armed carbon nano-tube suspension emulsion put into planetary ball mill wet ball-milling;
(3) the two kinds of conductive agents mixed and silicon-carbon/carbon nano-tube composite negative pole material are put into planetary mixer and are carried out thick material stirring;
(4) add binder solution mix and blend, finally add deionized water and stirring and regulate cathode size viscosity, 150 ~ 200 mesh sieves crossed by slurry.
3. a kind of silicon-carbon cathode slurry preparation method as claimed in claim 2, is characterized in that: the acrylonitrile multi-component copolymer LA type water-based binders for electrodes described in step (1) and deionized water add with mass ratio 1:2 ~ 3, mixing time 1 ~ 2h.
4. a kind of silicon-carbon cathode slurry preparation method as claimed in claim 2, is characterized in that: the carbon black Super-p conductive agent powder described in step (2) and single armed carbon nano-tube suspension emulsion add with mass ratio 1:55 ~ 56, mixing time 1 ~ 2h.
5. a kind of silicon-carbon cathode slurry preparation method as claimed in claim 2, is characterized in that: mix two kinds of conductive agents described in step (3) and silicon-carbon/carbon nano-tube composite negative pole material add with mass ratio 1:1.8 ~ 1.9, mixing time 1 ~ 2h.
6. a kind of silicon-carbon cathode slurry preparation method as claimed in claim 2, it is characterized in that: the binder solution added described in step (4) and silicon-carbon/carbon nano-tube composite negative pole material add with mass ratio 1:1.3 ~ 1.4, mixing time 2 ~ 3h, cathode size viscosity is adjusted to 2000 ~ 6000mpa.s.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510737797.8A CN105406039B (en) | 2015-11-03 | 2015-11-03 | A kind of silicon-carbon cathode slurry and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510737797.8A CN105406039B (en) | 2015-11-03 | 2015-11-03 | A kind of silicon-carbon cathode slurry and preparation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105406039A true CN105406039A (en) | 2016-03-16 |
| CN105406039B CN105406039B (en) | 2018-03-30 |
Family
ID=55471402
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510737797.8A Active CN105406039B (en) | 2015-11-03 | 2015-11-03 | A kind of silicon-carbon cathode slurry and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105406039B (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106560943A (en) * | 2016-08-17 | 2017-04-12 | 深圳市优特利电源有限公司 | Silicon-carbon negative electrode and preparation method thereof, and lithium ion battery |
| CN106560940A (en) * | 2016-08-17 | 2017-04-12 | 深圳市优特利电源有限公司 | High volume capacity silicon carbon negative electrode and preparation method thereof, and lithium ion battery |
| CN108321340A (en) * | 2018-02-06 | 2018-07-24 | 北京国能电池科技股份有限公司 | The stirring means of ceramic slurry |
| CN109075377A (en) * | 2016-04-28 | 2018-12-21 | 日产自动车株式会社 | Non-aqueous electrolyte secondary battery |
| CN109686979A (en) * | 2018-12-12 | 2019-04-26 | 陕西煤业化工技术研究院有限责任公司 | A kind of silicon-carbon cathode material slurry and preparation method thereof |
| CN110190249A (en) * | 2019-04-19 | 2019-08-30 | 合肥国轩高科动力能源有限公司 | Slurry mixing method of silicon-carbon cathode |
| CN112133911A (en) * | 2020-10-09 | 2020-12-25 | 浙江锋锂新能源科技有限公司 | Lithium ion battery cathode slurry and preparation method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1770515A (en) * | 2005-08-22 | 2006-05-10 | 中国科学院成都有机化学有限公司 | Anode, cathode material conductive agent for lithium-ion secondary battery and preparation method thereof |
| CN102683034A (en) * | 2012-04-28 | 2012-09-19 | 中国科学院电工研究所 | Method for preparing super capacitor electrode plate |
| CN102903896A (en) * | 2012-10-22 | 2013-01-30 | 深圳清华大学研究院 | Silicon carbon composite negative electrode material for lithium ion battery as well as preparation method and applications of material |
-
2015
- 2015-11-03 CN CN201510737797.8A patent/CN105406039B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1770515A (en) * | 2005-08-22 | 2006-05-10 | 中国科学院成都有机化学有限公司 | Anode, cathode material conductive agent for lithium-ion secondary battery and preparation method thereof |
| CN102683034A (en) * | 2012-04-28 | 2012-09-19 | 中国科学院电工研究所 | Method for preparing super capacitor electrode plate |
| CN102903896A (en) * | 2012-10-22 | 2013-01-30 | 深圳清华大学研究院 | Silicon carbon composite negative electrode material for lithium ion battery as well as preparation method and applications of material |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109075377A (en) * | 2016-04-28 | 2018-12-21 | 日产自动车株式会社 | Non-aqueous electrolyte secondary battery |
| CN109075377B (en) * | 2016-04-28 | 2020-08-25 | 远景Aesc日本有限公司 | Nonaqueous electrolyte secondary battery |
| CN106560943A (en) * | 2016-08-17 | 2017-04-12 | 深圳市优特利电源有限公司 | Silicon-carbon negative electrode and preparation method thereof, and lithium ion battery |
| CN106560940A (en) * | 2016-08-17 | 2017-04-12 | 深圳市优特利电源有限公司 | High volume capacity silicon carbon negative electrode and preparation method thereof, and lithium ion battery |
| CN108321340A (en) * | 2018-02-06 | 2018-07-24 | 北京国能电池科技股份有限公司 | The stirring means of ceramic slurry |
| CN109686979A (en) * | 2018-12-12 | 2019-04-26 | 陕西煤业化工技术研究院有限责任公司 | A kind of silicon-carbon cathode material slurry and preparation method thereof |
| CN109686979B (en) * | 2018-12-12 | 2021-07-06 | 陕西煤业化工技术研究院有限责任公司 | Silicon-carbon anode material slurry and preparation method thereof |
| CN110190249A (en) * | 2019-04-19 | 2019-08-30 | 合肥国轩高科动力能源有限公司 | Slurry mixing method of silicon-carbon cathode |
| CN112133911A (en) * | 2020-10-09 | 2020-12-25 | 浙江锋锂新能源科技有限公司 | Lithium ion battery cathode slurry and preparation method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105406039B (en) | 2018-03-30 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105406039A (en) | Silicon-carbon anode paste and preparation method thereof | |
| CN107634208A (en) | A kind of preparation method of lithium ion battery silicon-carbon cathode material | |
| CN106229505A (en) | A kind of high-density spherical nano lithium iron phosphate material and preparation method thereof and the lithium ion battery comprising it | |
| CN104934579B (en) | A kind of porous graphite doping and the preparation method of carbon coating graphite cathode material | |
| CN106025194B (en) | A kind of black phosphorus base composite negative pole material and preparation method thereof | |
| CN104617269A (en) | Silicon alloy composite anode material, preparation method and lithium ion battery | |
| CN106784671A (en) | A kind of preparation method of anode material for lithium-ion batteries | |
| CN106299267B (en) | A kind of preparation method of titanium phosphate lithium titanate cathode material | |
| CN103682307B (en) | Nickel ion doped/lithium titanate battery and preparation method thereof | |
| Chen et al. | Electrochemical performance of carbon nanotube-modified LiFePO4 cathodes for Li-ion batteries | |
| CN105470474A (en) | Composite negative electrode material of high-capacity lithium ion battery and preparation method of composite negative electrode material | |
| CN106207177A (en) | Containing artificial SEI floor height volume and capacity ratio and the silicon-carbon cathode material of cycle performance | |
| CN103311541A (en) | Composite cathode material for lithium ion batteries and preparation method thereof | |
| CN103682413A (en) | High-rate long-cycle-life lithium iron phosphate battery and preparation method thereof | |
| CN107394206A (en) | A kind of lithium ion battery aqueous positive-pole slurry and preparation method thereof | |
| CN105355849A (en) | Lithium battery cathode additive, lithium ion battery, preparation method and uses thereof | |
| CN108155343A (en) | Lithium ion battery pulping process | |
| CN108598386A (en) | Iron manganese phosphate for lithium base composite positive pole and preparation method thereof | |
| CN105390683A (en) | Sulfur-based negative electrode material of lithium ion batteries and application thereof | |
| CN114497508A (en) | Power type artificial graphite composite material and preparation method thereof | |
| CN114613974A (en) | Long-life quick-charging type lithium ion battery cathode material and preparation method thereof | |
| CN104183836B (en) | A kind of lithium-sulfur cell anode composite material | |
| CN105047917A (en) | Preparation method of lithium iron phosphate battery cathode material | |
| CN107732192A (en) | Used as negative electrode of Li-ion battery Si-C composite material and preparation method thereof | |
| CN102237524B (en) | The acid of Surface coating cobalt lithium, preparation method and lithium ion battery |
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 |
Address after: Five road high tech Zone 277000 Shandong city of Zaozhuang province Thailand Fuyuan Industrial Park, No. 319 Shandong Seiko Electronic Technology Co. Ltd. Applicant after: Shandong Seiko Electronic Technology Co.,Ltd. Address before: Thailand Industrial Park, Zaozhuang District of Shandong city in Zaozhuang province paid 277000 Xuecheng District 1. Applicant before: Shandong Seiko Electronic Technology Co.,Ltd. |
|
| COR | Change of bibliographic data | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 277800 No. x6699, Guangming Road, high tech Zone, Zaozhuang City, Shandong Province (north of the junction of Guangming Road and Huaxin Road) Patentee after: Shandong Jinggong Electronic Technology Co.,Ltd. Address before: Shandong Jinggong Electronic Technology Co., Ltd., No. 319, Fuyuan 5th Road, Thailand Industrial Park, Zaozhuang Hi tech Zone, Shandong 277000 Patentee before: Shandong Seiko Electronic Technology Co.,Ltd. |