CN104538640A - Lithium ion battery anode slurry and preparation method thereof - Google Patents
Lithium ion battery anode slurry and preparation method thereof Download PDFInfo
- Publication number
- CN104538640A CN104538640A CN201510000787.6A CN201510000787A CN104538640A CN 104538640 A CN104538640 A CN 104538640A CN 201510000787 A CN201510000787 A CN 201510000787A CN 104538640 A CN104538640 A CN 104538640A
- Authority
- CN
- China
- Prior art keywords
- ion battery
- lithium ion
- additive
- slurry
- battery anode
- 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
-
- 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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Abstract
The invention relates to lithium ion battery anode slurry and a preparation method of the lithium ion battery anode slurry. The lithium ion battery anode slurry comprises an anode material, binder, a solvent, a conductive agent and an additive, the slurry can be prepared in the atmospheric environment with the relative humidity being 0-70%rh, and the additive is a cycloanhydride additive. The cycloanhydride additive is added to the anode material agent mixing process and is used for adjusting the PH value of the slurry and effectively solving the problem of gelatum in the agent mixing process. Meanwhile, the effect that the anode material is evenly coated with the additive is achieved by utilizing the agent mixing process, in-situ coating of the anode material is further achieved in the charging and discharging processes, the surface activity of the anode material is reduced, oxygenolysis of the electrolyte is restrained, and the problem of matching between the anode material and the electrolyte is solved.
Description
Technical field
The present invention relates to a kind of lithium ion battery anode glue size and preparation method thereof.
Background technology
The development of pure electric drive automobile and intelligent electronic device in the urgent need to have more high-energy-density, more long-life can charge and discharge energy-storage battery, and the proportion of the energy density of battery shared by the theoretical energy density of battery and non-active material determines.Improve battery energy density except reducing the proportion of non-active material, depend mainly on the exploitation of high-energy-density electrode material system.Because the capacity of current lithium ion battery negative material is far above positive electrode, therefore the energy density of battery is mainly limited to positive electrode, the specific energy improving positive electrode can be roughly the specific capacity improving material from the viewpoint of two: one, and two is the doff lithium current potentials improving material.From these two aspects, nickelic or high voltage ternary material, high power capacity are lithium-rich manganese-based
xli
2mnO
3(1 –
x) LiMO
2with high-voltage spinel LiNi
0.5mn
1.5o
4positive electrode for representative is the focus of Recent study.The content improving Ni in ternary material can improve specific capacity effectively, nickelic high ph-values material easily absorbs water, when being exposed in air and moisture, the surperficial chemical resistance of material sharply reduces, and due to higher pH value, the polymerization of NMP-PVDF slurry can cause the gel of cell size, brings serious processing problems (CN102082261A) to battery manufacturing process; Meanwhile, high nickel content can cause the side reaction of positive electrode and electrolyte more obvious.
In addition, under high voltage condition, conventional electrolyte is except autoxidation decomposition reaction occurs, also can in positive electrode oxidation Decomposition on the surface, positive electrode containing transition metals more serves catalytic action and facilitates the oxidation of electrolyte, finally cause the rising of the internal resistance of cell, cycle performance destroys, and decreases the useful life of battery.The matching problem of electrolyte seriously hinders the development of high-voltage lithium ion batteries.In general, solving the use problem of this type of high voltage material, is all use positive pole film for additive in conventional electrolysis liquid, meets the user demand (power technology, 2012,8:1235-1238) of high voltage material further.CN103094616A discloses maleic anhydride and derivative thereof as high-voltage electrolyte additive, the HOMO energy of this kind of additive is a little more than the HOMO energy of electrolyte molecule, can prior to electrolyte in positive electrode surface film forming, effectively improve positive electrode surface characteristic, thus the contact reduced because of electrolyte and material surface active sites and the electrolyte decomposition that causes, do not affect material property performance simultaneously.
Summary of the invention
The object of the invention is to: provide a kind of positive electrode that can effectively solve to close lithium ion battery anode glue size of the gel problem of slurry and the matching problem of positive electrode and electrolyte when starching and preparation method thereof.
To achieve these goals, the invention provides following technical scheme:
A kind of lithium ion battery anode glue size, comprising: positive electrode, binding agent, solvent, conductive agent and additive; Described additive is cyclic acid anhydride class additive.
Further, the preparation of described slurry and coating process can be operated in the atmospheric environment of 0-70%rh in relative humidity.
Further, described cyclic acid anhydride class additive is one or more in maleic acid anhydride, succinic anhydride, glutaric anhydride, adipic anhydride, pimelic acid acid anhydride, citraconic anhydride, itaconic anhydride and phthalic anhydride; The consumption of described additive is the 0.01-3% of positive electrode weight.
Further, described positive electrode is one or more in LiFePO4, lithium ferric manganese phosphate, lithium manganese phosphate, LiMn2O4, element material, high-voltage lithium nickel manganate anode material, the rich lithium material of high power capacity manganese base.
Further, described binding agent comprises one or both in polyvinylidene fluoride, polytetrafluoroethylene.
Further, described solvent is one or more in 1-METHYLPYRROLIDONE, dimethyl formamide, diethylformamide, dimethyl sulfoxide (DMSO) and oxolane.
Further, described conductive agent is one or more in acetylene black, carbon black and graphite.
The preparation method of above-mentioned lithium ion battery anode glue size, comprises following step:
(1) join in solvent by disposable for additive, under normal temperature, uniform stirring 0.5-1 is little dissolves completely up to additive, add binding agent again, temperature controls between 30-60 DEG C, stir under 500-2000 rev/min of condition that 3-5 is little to be dissolved completely up to binding agent, with the final vacuum froth breaking 0.5-1 hour obtained glue containing additive;
(2) conductive agent is joined in the glue of preparation in step (1), high-speed stirred 1-2 hour under 1000-2000 rev/min of condition, divide again and add positive electrode 2-5 time, add rear all with the rotating speed of 500-1500 rev/min stirring 30-60 minute at every turn, after positive electrode all adds, high-speed stirred 2-8 hour under 1500-3000 rev/min of condition, obtains cell size;
(3) by after above-mentioned cell size vacuum froth breaking, after 80-200 eye mesh screen filters twice, described lithium ion battery anode glue size is namely obtained.
Preferably, according to slurry viscosity and solid content requirement, appropriate solvent is added in the slurry obtained in step (2) process, 1-3 hour is stirred with the rotating speed of 1000-1500 rev/min, after vacuum froth breaking, namely slurry obtains described lithium ion battery anode glue size after 80-200 eye mesh screen filters twice.
Beneficial effect of the present invention is: the present invention closes the derivative anhydrides additive adding cyclic acid anhydride class additive or cyclic acid anhydride in slurry process at positive electrode, regulates slurry pH value, effectively solves the gel problem of slurry during positive electrode conjunction slurry; Simultaneously, utilize and close evenly coated to positive electrode of slurry process implementation additive, thus realize the in-stiu coating of positive electrode in charge and discharge process further, reduce the surface activity of positive electrode, suppress the oxidation Decomposition of electrolyte, solve the matching problem of positive electrode and electrolyte.So the present invention, by being closed in slurry process at electrode by additive, not only can improve the stability of slurry, also can improve the interface stability of electrode material and electrolyte simultaneously.
embodiment:
Below in conjunction with embodiment, the present invention is further described, but does not limit the invention to these embodiments.One skilled in the art would recognize that all alternatives, improvement project and the equivalents that present invention encompasses and may comprise in Claims scope.
embodiment 1
The atmospheric humidity utilizing dehumidifier to control to close slurry and coating environment is 50%rh; join in 150 kg 1-METHYLPYRROLIDONEs (NMP) by disposable for 1 kg succinic anhydride; in high speed conjunction pulp grinder, stirring at normal temperature 0.5 is little dissolves completely up to succinic anhydride; shut down again and add binding agent PVDF (HSV900) (7.8 kg); control temperature is at 56 DEG C; under transferring 1800 revs/min of conditions to, high-speed stirred 4 is little dissolves completely up to binding agent, with final vacuum froth breaking 1 hour obtained glue containing additive succinic anhydride.Then in glue, add Super P (6.9 kg), KS-6 (0.8 kg), stir 0.5 hour under rotation 500 revs/min of conditions, then stir 1 hour under 1500 revs/min of conditions, then divide 2 times to add LiNi
0.85co
0.10al
0.05o
2ternary material (160kg), add at every turn and all stir 30 minutes with the rotating speed of 500 revs/min afterwards, subsequently, high-speed stirred 5 hours under 2200 revs/min of conditions, after vacuum froth breaking, namely slurry obtains described lithium ion battery anode glue size after 150 eye mesh screens filter twice, and have no obvious gelatin phenomenon, slurry normally can complete coating on aluminium foil.
embodiment 2
The atmospheric humidity utilizing dehumidifier to control to close slurry and coating environment is 65%rh; join in 180 kg 1-METHYLPYRROLIDONEs (NMP) by disposable for 2 kg itaconic anhydrides; in high speed conjunction pulp grinder, stirring at normal temperature 0.5 is little dissolves completely up to itaconic anhydride; shut down again and add binding agent PVDF (HSV900) (7.8 kg); control temperature is at 56 DEG C; under transferring 1800 revs/min of conditions to, high-speed stirred 4 is little dissolves completely up to binding agent, with final vacuum froth breaking 1 hour obtained glue containing additive itaconic anhydride.Then in glue, add Super P (6.9 kg), KS-6 (0.8 kg), stir 0.5 hour under rotation 500 revs/min of conditions, then stir 1 hour under 1500 revs/min of conditions, then divide 2 times to add high-voltage anode material LiNi
0.5mn
1.5o
4(160kg), add at every turn and all stir 30 minutes with the rotating speed of 800 revs/min afterwards, subsequently, high-speed stirred 8 hours under 1800 revs/min of conditions, after vacuum froth breaking, namely slurry obtains described lithium ion battery anode glue size after 120 eye mesh screens filter twice, and have no obvious gelatin phenomenon, slurry can normally be coated with.
By the anode pole piece, metal lithium sheet, 25umPE base barrier film and the 1M LiPF that make after coating
6eC/DMC (3/7 vol) is assembled into CR2016 button cell, at 3.5-4.9V(vs Li/Li
+) voltage range in carry out discharge and recharge, half-cell normal temperature 1C circulates 950 capacity attenuations to 81% of initial capacity, and the battery normal temperature 1C not adding itaconic anhydride additive in slurry circulates and just decays to 80% of initial capacity for 430 times; Anode pole piece after circulation detects through XPS, positive pole nickel ion doped pole piece containing additive in slurry is the elemental signals such as high-visible nickel, manganese still, and it is not obvious not add the element XPS signals such as additivated anode pole piece surface nickel, manganese, illustrate that in slurry, additive plays the in-stiu coating effect to positive electrode, effectively reduces the interface side reaction of positive electrode and electrolyte.
embodiment 3
The atmospheric humidity utilizing dehumidifier to control to close slurry and coating environment is 30%rh; join in 160 kg 1-METHYLPYRROLIDONEs (NMP) by disposable for 0.5 kg phthalic anhydride; in high speed conjunction pulp grinder, stirring at normal temperature 1 is little dissolves completely up to phthalic anhydride; shut down again and add binding agent PVDF (HSV900) (7.8 kg); control temperature is at 56 DEG C; under transferring 1800 revs/min of conditions to, high-speed stirred 4 is little dissolves completely up to binding agent, with final vacuum froth breaking 0.5 hour obtained glue containing additive phthalic anhydride.Then in glue, add Super P (6.9 kg), KS-6 (0.8 kg), stir 0.5 hour under rotation 500 revs/min of conditions, then stir 1 hour under 1500 revs/min of conditions, then divide and add lithium ferric manganese phosphate and ternary material (LiNi for 5 times
0.6co
0.2mn
0.2o
2) mixed powder (160kg), add at every turn and all stir 30 minutes with the rotating speed of 500 revs/min afterwards, subsequently, high-speed stirred 8 hours under 1800 revs/min of conditions, after vacuum froth breaking, namely slurry obtains described lithium ion battery anode glue size after 150 eye mesh screens filter twice.
embodiment 4
The atmospheric humidity utilizing dehumidifier to control to close slurry and coating environment is 40%rh; join in 160 kg dimethyl formamides by disposable for 0.5 kg glutaric anhydride; in high speed conjunction pulp grinder, stirring at normal temperature 1 is little dissolves completely up to glutaric anhydride; shut down again and add polyfluortetraethylene of binding element (7.8 kg); control temperature is at 56 DEG C; under transferring 1800 revs/min of conditions to, high-speed stirred 2.5 is little dissolves completely up to binding agent, with final vacuum froth breaking 0.5 hour obtained glue containing additive glutaric anhydride.Then in glue, add Super P (3.9 kg), KS-6 (0.5 kg), stir 0.5 hour under rotation 500 revs/min of conditions, then stir 2 hours under 1500 revs/min of conditions, then divide and add LiMn2O4 and ternary material (LiNi for 5 times
0.5co
0.2mn
0.3o
2) mixed powder (160kg), add at every turn and all stir 1 hour with the rotating speed of 500 revs/min afterwards, subsequently, high-speed stirred 5 hours under 2500 revs/min of conditions, slurry is after adding dimethyl formamide adjusting viscosity and mooring in 8000, vacuum froth breaking, namely obtains described lithium ion battery anode glue size after 120 eye mesh screens filter twice.
Claims (7)
1. a lithium ion battery anode glue size, is characterized in that, comprising: positive electrode, binding agent, solvent, conductive agent and additive; Described additive can play the effect of closing and regulating slurry pH value in slurry process, and effect coated to positive pole material in situ in battery charge and discharge process.
2. lithium ion battery anode glue size according to claim 1, is characterized in that the preparation of described slurry and coating process can be operated in the atmospheric environment of 0-70%rh in relative humidity.
3. lithium ion battery anode glue size according to claim 1, it is characterized in that described additive is cyclic acid anhydride class additive, comprise one or more in maleic acid anhydride, succinic anhydride, glutaric anhydride, adipic anhydride, pimelic acid acid anhydride, citraconic anhydride, itaconic anhydride and phthalic anhydride.
4. lithium ion battery anode glue size according to claim 1, is characterized in that, the consumption of described additive is the 0.01-3% of positive electrode weight.
5. lithium ion battery anode glue size according to claim 1, it is characterized in that, described positive electrode is one or more in LiFePO4, lithium ferric manganese phosphate, lithium manganese phosphate, LiMn2O4, element material, high-voltage lithium nickel manganate anode material, the rich lithium material of high power capacity manganese base.
6. lithium ion battery anode glue size according to claim 1, is characterized in that, described binding agent comprise in polyvinylidene fluoride, polytetrafluoroethylene one or both.
7. lithium ion battery anode glue size according to claim 1, is characterized in that, described solvent is one or more in 1-METHYLPYRROLIDONE, dimethyl formamide, diethylformamide, dimethyl sulfoxide (DMSO) and oxolane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510000787.6A CN104538640A (en) | 2015-01-04 | 2015-01-04 | Lithium ion battery anode slurry and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510000787.6A CN104538640A (en) | 2015-01-04 | 2015-01-04 | Lithium ion battery anode slurry and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104538640A true CN104538640A (en) | 2015-04-22 |
Family
ID=52854135
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510000787.6A Pending CN104538640A (en) | 2015-01-04 | 2015-01-04 | Lithium ion battery anode slurry and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104538640A (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104966815A (en) * | 2015-05-08 | 2015-10-07 | 广州锂宝新材料有限公司 | Positive electrode material electrode sheet preparation composition, method and prepared electrode sheet |
| CN105336918A (en) * | 2015-09-28 | 2016-02-17 | 厦门钨业股份有限公司 | Preparation method of lithium ion battery high-nickel positive electrode material slurry |
| CN106025175A (en) * | 2016-06-15 | 2016-10-12 | 中国科学院宁波材料技术与工程研究所 | Battery slurry, battery pole piece and preparation method of battery pole piece |
| CN107180955A (en) * | 2017-05-25 | 2017-09-19 | 西藏杭能新能源科技有限公司 | A kind of preparation method of the rich lithium metal oxide anode composite electrodes of nickle cobalt lithium manganate NCM |
| CN109119632A (en) * | 2017-06-26 | 2019-01-01 | 宁德时代新能源科技股份有限公司 | Positive electrode slurry, positive plate and lithium ion battery |
| CN111864198A (en) * | 2020-08-21 | 2020-10-30 | 安瑞创新(厦门)能源有限公司 | Ternary material composite lithium manganese iron phosphate cathode material and preparation method thereof |
| CN113036146A (en) * | 2021-03-10 | 2021-06-25 | 哈尔滨万鑫石墨谷科技有限公司 | Carbon nanotube conductive slurry and preparation method and application thereof |
| CN113839010A (en) * | 2020-06-08 | 2021-12-24 | 丰田自动车株式会社 | Method for manufacturing electrode and method for manufacturing all-solid-state battery |
| CN117117156A (en) * | 2023-10-23 | 2023-11-24 | 宜宾锂宝新材料有限公司 | Ternary material-lithium manganate composite material, preparation method and lithium battery |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003242981A (en) * | 2002-02-14 | 2003-08-29 | Hitachi Maxell Ltd | Non-aqueous electrolyte battery and its manufacturing method |
| CN102569723A (en) * | 2012-02-13 | 2012-07-11 | 华为技术有限公司 | Lithium ion battery positive electrode material and preparation method thereof, positive electrode and lithium ion battery |
| CN103094556A (en) * | 2013-01-30 | 2013-05-08 | 浙江超威创元实业有限公司 | Method for preparing positive electrode slurry of lithium ion battery |
| CN103779567A (en) * | 2014-01-26 | 2014-05-07 | 江苏品德环保科技有限公司 | Secondary battery with active substance for improving anode |
-
2015
- 2015-01-04 CN CN201510000787.6A patent/CN104538640A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003242981A (en) * | 2002-02-14 | 2003-08-29 | Hitachi Maxell Ltd | Non-aqueous electrolyte battery and its manufacturing method |
| CN102569723A (en) * | 2012-02-13 | 2012-07-11 | 华为技术有限公司 | Lithium ion battery positive electrode material and preparation method thereof, positive electrode and lithium ion battery |
| CN103094556A (en) * | 2013-01-30 | 2013-05-08 | 浙江超威创元实业有限公司 | Method for preparing positive electrode slurry of lithium ion battery |
| CN103779567A (en) * | 2014-01-26 | 2014-05-07 | 江苏品德环保科技有限公司 | Secondary battery with active substance for improving anode |
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104966815A (en) * | 2015-05-08 | 2015-10-07 | 广州锂宝新材料有限公司 | Positive electrode material electrode sheet preparation composition, method and prepared electrode sheet |
| CN105336918A (en) * | 2015-09-28 | 2016-02-17 | 厦门钨业股份有限公司 | Preparation method of lithium ion battery high-nickel positive electrode material slurry |
| CN105336918B (en) * | 2015-09-28 | 2018-02-16 | 厦门厦钨新能源材料有限公司 | A kind of preparation method of the nickelic system's positive electrode slurry of lithium ion battery |
| CN106025175A (en) * | 2016-06-15 | 2016-10-12 | 中国科学院宁波材料技术与工程研究所 | Battery slurry, battery pole piece and preparation method of battery pole piece |
| US10978693B2 (en) | 2016-06-15 | 2021-04-13 | Ningbo Institute Of Materials Technology And Engineering, Chinese Academy Of Sciences | Battery paste, battery electrode plate, and preparation method therefor |
| CN107180955A (en) * | 2017-05-25 | 2017-09-19 | 西藏杭能新能源科技有限公司 | A kind of preparation method of the rich lithium metal oxide anode composite electrodes of nickle cobalt lithium manganate NCM |
| CN109119632A (en) * | 2017-06-26 | 2019-01-01 | 宁德时代新能源科技股份有限公司 | Positive electrode slurry, positive plate and lithium ion battery |
| CN113839010A (en) * | 2020-06-08 | 2021-12-24 | 丰田自动车株式会社 | Method for manufacturing electrode and method for manufacturing all-solid-state battery |
| CN111864198A (en) * | 2020-08-21 | 2020-10-30 | 安瑞创新(厦门)能源有限公司 | Ternary material composite lithium manganese iron phosphate cathode material and preparation method thereof |
| CN111864198B (en) * | 2020-08-21 | 2021-08-03 | 安瑞创新(厦门)能源有限公司 | Ternary material composite lithium manganese iron phosphate cathode material and preparation method thereof |
| CN113036146A (en) * | 2021-03-10 | 2021-06-25 | 哈尔滨万鑫石墨谷科技有限公司 | Carbon nanotube conductive slurry and preparation method and application thereof |
| CN113036146B (en) * | 2021-03-10 | 2022-06-28 | 哈尔滨万鑫石墨谷科技有限公司 | Carbon nano tube conductive slurry and preparation method and application thereof |
| CN117117156A (en) * | 2023-10-23 | 2023-11-24 | 宜宾锂宝新材料有限公司 | Ternary material-lithium manganate composite material, preparation method and lithium battery |
| CN117117156B (en) * | 2023-10-23 | 2024-01-19 | 宜宾锂宝新材料有限公司 | Ternary material-lithium manganate composite material, preparation method and lithium battery |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104538640A (en) | Lithium ion battery anode slurry and preparation method thereof | |
| CN101295788B (en) | Active material, electrode, battery, and method of manufacturing active material | |
| JP4778526B2 (en) | Method for producing positive electrode sheet for lithium ion battery, and positive electrode sheet and lithium ion battery produced by the method | |
| CN103700820B (en) | A kind of lithium ion selenium battery with long service life | |
| US10026955B2 (en) | Method for producing positive electrode active material layer for lithium ion battery, and positive electrode active material layer for lithium ion battery | |
| JP5732545B2 (en) | Method for producing positive electrode active material for lithium ion battery containing graphene-like structural material | |
| CN110299513B (en) | Preparation method of lithium-philic negative electrode, lithium-philic negative electrode and lithium battery | |
| CN108172893B (en) | Lithium ion battery | |
| CN110911644A (en) | Lithium ion positive coating and lithium ion battery | |
| CN112490518B (en) | Positive electrode lithium supplement additive, preparation method thereof, positive electrode and lithium ion battery | |
| CN112701277A (en) | Lithium ion battery prelithiation additive and application thereof | |
| CN105470461A (en) | High-nickel base cathode paste for lithium-ion battery and preparation method of high-nickel base cathode paste | |
| CN102412387A (en) | Positive pole of lithium ion battery, and manufacturing method for positive pole, and lithium ion battery | |
| JP2002042812A (en) | Positive electrode active material for lithium secondary battery and lithium secondary battery using the same | |
| CN114497498B (en) | Electrochemical device and electronic device | |
| CN108155384B (en) | Inorganic binder lithium ion battery | |
| CN111313008B (en) | Magnesium-containing lithium-rich manganese-based positive electrode and preparation method thereof | |
| KR101667967B1 (en) | Cathode slurry for electrochemical device, cathode manufactured using the slurry, and a method of making the cathode | |
| CN115312783B (en) | Coating method of lithium ion battery anode material | |
| CN113823768B (en) | Preparation method of solid-state battery | |
| CN116759535B (en) | Electrochemical device and electronic apparatus | |
| JP2002033101A (en) | Lithium-manganese oxide and lithium secondary battery using it | |
| CN106025346B (en) | The battery of lithium ion battery composite cathode material and preparation method thereof and assembling | |
| JPH09293509A (en) | Positive electrode material for nonaqueous electrolyte secondary battery and its manufacture | |
| CN101908653A (en) | Titanium-manganese battery |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information |
Address after: 230000 Yaohai Industrial Zone, Hefei New District, Anhui, No. D weft Road, No. 7 Applicant after: Hefei Guoxuan High-Tech Power Energy Co., Ltd. Address before: 230000 Yaohai Industrial Zone, Hefei New District, Anhui, No. D weft Road, No. 7 Applicant before: Hefei Guoxuan High-Tech Power Energy Co., Ltd. |
|
| COR | Change of bibliographic data | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20150422 |
|
| RJ01 | Rejection of invention patent application after publication |