CN105702940B - 一种包覆镍钴锰酸锂正极材料的方法 - Google Patents
一种包覆镍钴锰酸锂正极材料的方法 Download PDFInfo
- Publication number
- CN105702940B CN105702940B CN201610285141.1A CN201610285141A CN105702940B CN 105702940 B CN105702940 B CN 105702940B CN 201610285141 A CN201610285141 A CN 201610285141A CN 105702940 B CN105702940 B CN 105702940B
- Authority
- CN
- China
- Prior art keywords
- positive electrode
- lithium manganate
- cathode material
- cobalt lithium
- solution
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000000034 method Methods 0.000 title claims abstract description 24
- 238000005253 cladding Methods 0.000 title claims abstract description 12
- HFCVPDYCRZVZDF-UHFFFAOYSA-N [Li+].[Co+2].[Ni+2].[O-][Mn]([O-])(=O)=O Chemical compound [Li+].[Co+2].[Ni+2].[O-][Mn]([O-])(=O)=O HFCVPDYCRZVZDF-UHFFFAOYSA-N 0.000 title claims abstract description 11
- 239000010406 cathode material Substances 0.000 title claims abstract description 11
- 238000005245 sintering Methods 0.000 claims abstract description 19
- 229910013421 LiNixCoyMn1-x-yO2 Inorganic materials 0.000 claims abstract description 17
- 229910013427 LiNixCoyMn1−x−yO2 Inorganic materials 0.000 claims abstract description 17
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 17
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 17
- 239000007790 solid phase Substances 0.000 claims abstract description 10
- 239000000243 solution Substances 0.000 claims description 15
- WMFOQBRAJBCJND-UHFFFAOYSA-M Lithium hydroxide Chemical compound [Li+].[OH-] WMFOQBRAJBCJND-UHFFFAOYSA-M 0.000 claims description 10
- 239000000843 powder Substances 0.000 claims description 5
- 239000007921 spray Substances 0.000 claims description 5
- 238000010792 warming Methods 0.000 claims description 5
- 239000011259 mixed solution Substances 0.000 claims description 4
- 239000002243 precursor Substances 0.000 claims description 3
- 125000001967 indiganyl group Chemical group [H][In]([H])[*] 0.000 claims 1
- 230000001939 inductive effect Effects 0.000 claims 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 abstract description 11
- 229910052593 corundum Inorganic materials 0.000 abstract description 11
- 229910001845 yogo sapphire Inorganic materials 0.000 abstract description 11
- 239000000463 material Substances 0.000 abstract description 9
- 238000002360 preparation method Methods 0.000 abstract description 8
- 238000001694 spray drying Methods 0.000 abstract description 8
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 229910001416 lithium ion Inorganic materials 0.000 description 12
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 11
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 4
- 229910052744 lithium Inorganic materials 0.000 description 4
- 238000011056 performance test Methods 0.000 description 4
- 230000002572 peristaltic effect Effects 0.000 description 4
- 229910013716 LiNi Inorganic materials 0.000 description 3
- 239000013078 crystal Substances 0.000 description 3
- OVAQODDUFGFVPR-UHFFFAOYSA-N lithium cobalt(2+) dioxido(dioxo)manganese Chemical compound [Li+].[Mn](=O)(=O)([O-])[O-].[Co+2] OVAQODDUFGFVPR-UHFFFAOYSA-N 0.000 description 3
- 238000002156 mixing Methods 0.000 description 3
- 239000002002 slurry Substances 0.000 description 3
- 208000011580 syndromic disease Diseases 0.000 description 3
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000001354 calcination Methods 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 229910001453 nickel ion Inorganic materials 0.000 description 2
- 238000003786 synthesis reaction Methods 0.000 description 2
- FUJCRWPEOMXPAD-UHFFFAOYSA-N Li2O Inorganic materials [Li+].[Li+].[O-2] FUJCRWPEOMXPAD-UHFFFAOYSA-N 0.000 description 1
- 229910032387 LiCoO2 Inorganic materials 0.000 description 1
- 229910002993 LiMnO2 Inorganic materials 0.000 description 1
- 229910003005 LiNiO2 Inorganic materials 0.000 description 1
- SMZOGRDCAXLAAR-UHFFFAOYSA-N aluminium isopropoxide Chemical class [Al+3].CC(C)[O-].CC(C)[O-].CC(C)[O-] SMZOGRDCAXLAAR-UHFFFAOYSA-N 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 239000010405 anode material Substances 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 235000019994 cava Nutrition 0.000 description 1
- 238000000975 co-precipitation Methods 0.000 description 1
- XUCJHNOBJLKZNU-UHFFFAOYSA-M dilithium;hydroxide Chemical compound [Li+].[Li+].[OH-] XUCJHNOBJLKZNU-UHFFFAOYSA-M 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003837 high-temperature calcination Methods 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000008707 rearrangement Effects 0.000 description 1
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
-
- 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
- H01M4/48—Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides
- H01M4/50—Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of manganese
- H01M4/505—Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of manganese of mixed oxides or hydroxides containing manganese for inserting or intercalating light metals, e.g. LiMn2O4 or LiMn2OxFy
-
- 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
- H01M4/48—Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides
- H01M4/52—Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of nickel, cobalt or iron
- H01M4/525—Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of nickel, cobalt or iron of mixed oxides or hydroxides containing iron, cobalt or nickel for inserting or intercalating light metals, e.g. LiNiO2, LiCoO2 or LiCoOxFy
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Composite Materials (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Battery Electrode And Active Subsutance (AREA)
Abstract
本发明涉及一种包覆镍钴锰酸锂正极材料的方法，包括以下步骤：1)铝溶胶的制备；2)LiNixCoyMn1‑x‑yO2正极材料与铝溶胶匀浆后，喷雾干燥法造粒形成前驱体；3)前驱体固相烧结得到Al2O3包覆在LiNixCoyMn1‑x‑yO2正极材料；本发明工艺简单，成本低，适于工业化生产，推广LiNixCoyMn1‑x‑yO2正极材料在动力电池领域的应用，提高材料的倍率性能。
Description
技术领域
本发明涉及锂离子电池制造技术领域，具体涉及一种包覆镍钴锰酸锂正极材料的方法。
背景技术
锂离子电池作为新一代储能电池，正在各种消费类电子产品领域得到迅猛发展，并且在电动汽车、电动交通工具和航天领域显示出潜在的应用价值。而锂离子电池的性能和成本在很大程度上取决于正极材料。目前，锂离子电池负极材料的比容量达到正极材料的两倍，从而正极材料比容量较低已经成为制约锂离子电池发展的瓶颈，因此研究锂离子电池正极材料，对于发展和改进锂离子电池具有重要的现实意义。
镍钴锰酸锂LiNixCoyMn1-x-yO2正极材料，综合LiNiO2、LiCoO2、LiMnO2三种正极材料的优势，具有高容量、高电压平台、更好的热稳定性，市场应用前景广阔。但是镍钴锰酸锂三元材料还不能完全取代现有的锂离子电池正极材料，主要原因有两点：目前工业上生产的三元材料多采用共沉淀法制备前驱体，然后通过干法或湿法混锂，最后经过高温煅烧制备三元材料。其一：采用干法或湿法混锂导致前驱体与锂的混合不够均匀，且颗粒粒径不易控制，使得最终产品的稳定性难以控制；其二镍钴锰酸锂是在850℃以上高温经一定时间的保温煅烧合成，在煅烧过程中晶粒会快速长大，且粒度难以控制，导致材料的首次放电容量及循环性能受到负面影响；其三：锂离子与镍离子半径相近，在充放电过程中镍离子容易占据锂离子位置发生晶体结构坍塌。晶体结构的坍塌不仅破坏Li+的传输通道，而且电池在脱出Li2O后离子重排受阻，八面体空位被占，放电后没有足够的位置供锂离子嵌入，造成析锂，严重影响了电性能的发挥。
发明内容
本发明的目的在于提供一种喷雾干燥法制备Al2O3包覆镍钴锰酸锂正极材料的方法，推广LiNixCoyMn1-x-yO2正极材料在动力电池领域的应用，通过喷雾干燥法将Al2O3均匀包覆在LiNixCoyMn1-x-yO2正极材料表面，提高材料的倍率性能。
喷雾干燥法制备Al2O3包覆LiNixCoyMn1-x-yO2正极材料的工艺流程包括以下三个步骤：1.铝溶胶的制备；2.LiNixCoyMn1-x-yO2正极材料与铝溶胶匀浆后，喷雾干燥法造粒形成前驱体；3.前驱体固相烧结得到Al2O3包覆在LiNixCoyMn1-x-yO2正极材料。
本发明的喷雾干燥法制备Al2O3包覆镍钴锰酸锂正极材料的方法，包括如下步骤：
1)将LiOH配制成的溶液B加入到Al(NO3)3·9H2O和C6H8O7·H2O配制而成的混合溶液A中并不断搅拌，控制pH，制成铝溶胶；
2)称量LiNixCoyMn1-x-yO2正极材料，缓慢加入到铝溶胶中，搅拌反应一段时间，用蠕动泵将其输入到喷雾干燥机中，设置好参数，得到Al(OH)3包覆的LiNixCoyMn1-x-yO2正极材料前驱体；
3)将前驱体粉末放入气氛炉中进行固相烧结，设置烧结制度和烧结时间，得到Al2O3包覆LiNixCoyMn1-x-yO2正极材料。
上述方案中，步骤1)中所述溶液A的质量比为4.69:2.64，溶液B的浓度为8％，控制其pH在9.8～10.2。
上述方案中，步骤2)中所述搅拌反应时间为2-3小时，参数设置如下：
进风温度150～200℃、出风温度：80～90℃、引风机频率：30～40Hz。
上述方案中，步骤3)中所述烧结制度如下：以2～3℃/min的速率升温至600℃，600℃恒温烧结8-10小时，随炉冷却至室温。
本发明具备的有益效果总结如下：
(1)工艺简单；
(2)成本低；
(3)适合工业化生产。
附图说明
图1是本发明实施例1制备的未经包覆的LiNixCoyMn1-x-yO2正极材料的SEM照片；
图2是本发明实施例1制备的样品1的SEM照片；
图3是本发明实施例2准备的样品2的SEM照片；
图4是本发明实施例3准备的样品3的SEM照片；
图5是本发明实施例3不同倍率下放电容量测试结果。
具体实施方式
下面结合附图和实施例对本发明作进一步详细说明。
实施例1
铝溶胶的制备：准确称量18.76g Al(NO3)3·9H2O、10.56gC6H8O7·H2O配制成500mL混合溶液A，8％LiOH溶液B 200mL，将B溶液加入到A溶液中并不断搅拌，控制其pH在9.8～10.2，制成铝溶胶-01。
前驱体的制备：准确称量200.0g LiNixCoyMn1-x-yO2正极材料，缓慢加入到铝溶胶-01，搅拌反应2-3小时形成均匀料浆，用蠕动泵将其泵入喷雾干燥机，参数设置如下：进风温度200℃、出风温度：90℃、引风机频率：40Hz，得到Al(OH)3包覆的LiNixCoyMn1-x-yO2正极材料前驱体。
前驱体的固相烧结：将前驱体-01粉末放入气氛炉中进行固相烧结，烧结制度如下：以3℃/min的速率升温至600℃，600℃恒温烧结8-10小时，随炉冷却至室温，得到Al2O3包覆LiNixCoyMn1-x-yO2正极材料图2，对其进行SEM和电池性能测试。
实施例2
铝溶胶的制备：准确称量10.21g异丙醇铝、配制成500mL混合溶液A，8％LiOH溶液B200mL，将B溶液加入到A溶液中并不断搅拌，控制其pH在8.0～9.0，制成铝溶胶-02。
前驱体的制备：准确称量200.0g LiNixCoyMn1-x-yO2正极材料，缓慢加入到铝溶胶-02，搅拌反应2-3小时形成均匀料浆，用蠕动泵将其泵入喷雾干燥机，参数设置如下：进风温度200℃、出风温度：90℃、引风机频率：40Hz，得到Al(OH)3包覆的LiNixCoyMn1-x-yO2正极材料前驱体。
前驱体的固相烧结：将前驱体-02粉末放入气氛炉中进行固相烧结，烧结制度如下：以3℃/min的速率升温至600℃，600℃恒温烧结8-10小时，随炉冷却至室温，得到Al2O3包覆LiNixCoyMn1-x-yO2正极材料图3，对其进行SEM和电池性能测试。
实施例3
铝溶胶的制备：准确称量18.76g Al(NO3)3·9H2O配制成500mL混合溶液A，8％LiOH溶液B 200mL，将B溶液加入到A溶液中并不断搅拌，控制其pH在7.0～8.0，制成铝溶胶-03。
前驱体的制备：准确称量200.0g LiNixCoyMn1-x-yO2正极材料，缓慢加入到铝溶胶-03，搅拌反应2-3小时形成均匀料浆，用蠕动泵将其泵入喷雾干燥机，参数设置如下：进风温度200℃、出风温度：90℃、引风机频率：40Hz，得到Al(OH)3包覆的LiNixCoyMn1-x-yO2正极材料前驱体。
前驱体的固相烧结：将前驱体-01粉末放入气氛炉中进行固相烧结，烧结制度如下：以3℃/min的速率升温至600℃，600℃恒温烧结8-10小时，随炉冷却至室温，得到Al2O3包覆LiNixCoyMn1-x-yO2正极材料图4，对其进行SEM和电性能测试，图5即为上述四种样品不同倍率下放电容量下的测试结果。
本发明的喷雾干燥法制备Al2O3包覆镍钴锰酸锂正极材料的方法，对本方法合成的样品进行倍率性能测试数据显示，在1.0C、2.0C、3.0C倍率电流下，样品1和样品3的放电比容量高于对比样品的未经包覆的LiNixCoyMn1-x-yO2正极材料，而在4.0C、5.0C、6.0C倍率电流下，样品1、样品2和样品3的放电比容量均优于对比样品的未经包覆的LiNixCoyMn1-x-yO2正极材料。因此，本发明的喷雾干燥法制备的Al2O3包覆镍钴锰酸锂正极材料具有优异的倍率性能。
Claims (3)
1.一种包覆镍钴锰酸锂正极材料的方法，其特征在于，包括如下步骤：
1)将LiOH配制成的溶液B加入到Al(NO3)3·9H2O和C6H8O7·H2O配制而成的混合溶液A中并不断搅拌，控制pH，制成铝溶胶；
2)称量LiNixCoyMn1-x-yO2正极材料，缓慢加入到铝溶胶中，搅拌反应一段时间，用蠕动泵将其输入到喷雾干燥机中，设置好参数，得到Al(OH)3包覆的LiNixCoyMn1-x-yO2正极材料前驱体；
3)将前驱体粉末放入气氛炉中进行固相烧结，设置烧结制度和烧结时间，得到Al2O3包覆LiNixCoyMn1-x-yO2正极材料；
步骤3)中所述烧结制度如下：以2～3℃/min的速率升温至600℃，600℃恒温烧结8-10小时，随炉冷却至室温。
2.根据权利要求1所述的包覆镍钴锰酸锂正极材料的方法，其特征在于：步骤1)中所述溶液A中Al(NO3)3·9H2O和C6H8O7·H2O的质量比为4.69:2.64，溶液B的浓度为8％，控制其pH在9.8～10.2。
3.根据权利要求1所述的包覆镍钴锰酸锂正极材料的方法，其特征在于：步骤2)中所述搅拌反应时间为2-3小时，参数设置如下：进风温度150～200℃、出风温度：80～90℃、引风机频率：30～40Hz。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610285141.1A CN105702940B (zh) | 2016-04-29 | 2016-04-29 | 一种包覆镍钴锰酸锂正极材料的方法 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610285141.1A CN105702940B (zh) | 2016-04-29 | 2016-04-29 | 一种包覆镍钴锰酸锂正极材料的方法 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105702940A CN105702940A (zh) | 2016-06-22 |
| CN105702940B true CN105702940B (zh) | 2018-09-21 |
Family
ID=56216666
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610285141.1A Active CN105702940B (zh) | 2016-04-29 | 2016-04-29 | 一种包覆镍钴锰酸锂正极材料的方法 |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105702940B (zh) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106450199A (zh) * | 2016-10-24 | 2017-02-22 | 东莞市联洲知识产权运营管理有限公司 | 一种安全环保的高倍率锂离子电池的制备方法 |
| CN107946578B (zh) * | 2017-11-27 | 2020-07-17 | 中南大学 | 一种钴酸锂包覆的镍钴铝酸锂正极材料及其制备方法 |
| CN108123122B (zh) * | 2017-12-19 | 2020-06-19 | 青岛乾运高科新材料股份有限公司 | Ncm622正极材料包覆改性方法 |
| CN108807951B (zh) * | 2018-08-08 | 2021-07-30 | 清远佳致新材料研究院有限公司 | 一种锂电池正极活性材料的制备方法 |
| US20210328218A1 (en) * | 2018-10-02 | 2021-10-21 | Basf Se | Process for making a partially coated electrode active material |
| CN114388747A (zh) * | 2020-10-19 | 2022-04-22 | 天津国安盟固利新材料科技股份有限公司 | 一种纳米单晶三元材料及其制备方法 |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102306751A (zh) * | 2011-08-04 | 2012-01-04 | 深圳市天骄科技开发有限公司 | 锂离子电池正极材料湿法包覆铝的制备方法 |
| CN103618064A (zh) * | 2013-11-08 | 2014-03-05 | 宁夏共享集团有限责任公司 | 一种氧化铝复合镍钴锰酸锂三元材料的制备方法 |
| CN105006566A (zh) * | 2015-08-31 | 2015-10-28 | 宁波金和锂电材料有限公司 | 一种改性正极材料及其制备方法和锂离子电池 |
-
2016
- 2016-04-29 CN CN201610285141.1A patent/CN105702940B/zh active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102306751A (zh) * | 2011-08-04 | 2012-01-04 | 深圳市天骄科技开发有限公司 | 锂离子电池正极材料湿法包覆铝的制备方法 |
| CN103618064A (zh) * | 2013-11-08 | 2014-03-05 | 宁夏共享集团有限责任公司 | 一种氧化铝复合镍钴锰酸锂三元材料的制备方法 |
| CN105006566A (zh) * | 2015-08-31 | 2015-10-28 | 宁波金和锂电材料有限公司 | 一种改性正极材料及其制备方法和锂离子电池 |
Non-Patent Citations (1)
| Title |
|---|
| "不同铝源羟基氧化铝除氟性能及机理研究";张勤虎等;《工业用水与废水》;20150831;第46卷(第4期);23-28 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105702940A (zh) | 2016-06-22 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105702940B (zh) | 一种包覆镍钴锰酸锂正极材料的方法 | |
| US10446830B2 (en) | High-voltage ternary positive electrode material for lithium-ion battery and preparation method thereof | |
| US10916767B2 (en) | Carbon-coated ternary positive electrode material, preparation method therefor, and lithium ion battery | |
| CN107346824B (zh) | 一种梯度三元正极材料的制备方法及其应用 | |
| CN103178258B (zh) | 氧化铝包覆改性锂镍钴锰氧正极材料的制备方法 | |
| CN102723481B (zh) | 一种掺杂微量钨元素的高压锂电池正极材料及其制备方法 | |
| CN109786666A (zh) | 一种氮掺杂碳包覆硅纳米颗粒复合材料、制备方法及应用 | |
| JP7109334B2 (ja) | 全固体リチウムイオン電池用正極の製造方法及び全固体リチウムイオン電池の製造方法 | |
| US20120326078A1 (en) | Method of preparing cathode active material for lithium secondary batteries and lithium secondary batteries using the same | |
| CN104577061B (zh) | 电池、负极材料及其制备方法 | |
| CN109411735A (zh) | 一种正极材料及其制备方法和锂离子电池 | |
| CN105958063B (zh) | 一种锂离子电池用镍钴铝正极材料的制备方法 | |
| CN109167050A (zh) | 低成本高容量551530型三元正极材料的生产方法 | |
| CN104716317A (zh) | 一种钠离子电池NaxMnO2正极材料的合成方法 | |
| CN104852046B (zh) | 纳米片状磷酸锰铁锂材料及其制备方法和应用 | |
| CN104362334A (zh) | 硅酸锂包覆锂离子电池富锂层状正极材料的制备方法 | |
| CN106784837A (zh) | 一种氧化铝包覆锂离子电池正极材料的制备方法 | |
| CN106784748B (zh) | 一种硅基镍钴锰锂三元锂电池电极材料及其制备方法 | |
| CN109509874A (zh) | 一种三氧化钼包覆富锂锰基正极材料的制备方法 | |
| CN104953109B (zh) | 一种提升耐高温性能的核壳结构锰酸锂及其合成方法 | |
| CN106067545B (zh) | 一种用偏铝酸钠作原料包覆层状正极材料制备方法 | |
| CN113363444B (zh) | 一种纳米钛酸锂包覆改性石墨负极材料、其制备方法及其应用 | |
| CN108306008A (zh) | 一种镍钴铝酸锂及其复合材料的制备方法 | |
| CN103094566A (zh) | 一种溶胶凝胶法制备锂离子电池正极材料碳包覆磷酸钒锂 | |
| CN108221051A (zh) | 高镍的镍钴锰三元单晶材料、制备方法及其应用 |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: Covering method for nickel and cobalt lithium manganate anode material Effective date of registration: 20200629 Granted publication date: 20180921 Pledgee: China Construction Bank Corporation Qingdao Zhongshan Road sub branch Pledgor: QINGDAO QIANYUN HIGH-TECH NEW MATERIAL Co.,Ltd. Registration number: Y2020370010025 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right |