JP2018120812A5 - - Google Patents
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- JP2018120812A5 JP2018120812A5 JP2017012928A JP2017012928A JP2018120812A5 JP 2018120812 A5 JP2018120812 A5 JP 2018120812A5 JP 2017012928 A JP2017012928 A JP 2017012928A JP 2017012928 A JP2017012928 A JP 2017012928A JP 2018120812 A5 JP2018120812 A5 JP 2018120812A5
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- JP
- Japan
- Prior art keywords
- composite oxide
- oxide
- positive electrode
- active material
- electrode active
- 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.)
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- 239000002131 composite material Substances 0.000 claims 14
- 238000004519 manufacturing process Methods 0.000 claims 7
- 239000007774 positive electrode material Substances 0.000 claims 7
- 238000010438 heat treatment Methods 0.000 claims 5
- 229910044991 metal oxide Inorganic materials 0.000 claims 4
- 150000004706 metal oxides Chemical class 0.000 claims 4
- 150000004703 alkoxides Chemical class 0.000 claims 3
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims 3
- 229910052751 metal Inorganic materials 0.000 claims 3
- 239000002184 metal Substances 0.000 claims 3
- 239000000203 mixture Substances 0.000 claims 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims 3
- 239000011248 coating agent Substances 0.000 claims 2
- 238000000576 coating method Methods 0.000 claims 2
- 229910052731 fluorine Inorganic materials 0.000 claims 2
- 239000011737 fluorine Substances 0.000 claims 2
- YCKRFDGAMUMZLT-UHFFFAOYSA-N fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 claims 2
- WHXSMMKQMYFTQS-UHFFFAOYSA-N lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 claims 2
- 229910052744 lithium Inorganic materials 0.000 claims 2
- FYYHWMGAXLPEAU-UHFFFAOYSA-N magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 claims 2
- 229910052749 magnesium Inorganic materials 0.000 claims 2
- 239000011777 magnesium Substances 0.000 claims 2
- 229910052760 oxygen Inorganic materials 0.000 claims 2
- 239000001301 oxygen Substances 0.000 claims 2
- MYMOFIZGZYHOMD-UHFFFAOYSA-N oxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 claims 2
- 239000002245 particle Substances 0.000 claims 2
- 229910052723 transition metal Inorganic materials 0.000 claims 2
- 150000003624 transition metals Chemical class 0.000 claims 2
- RTAQQCXQSZGOHL-UHFFFAOYSA-N titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims 1
- 229910052719 titanium Inorganic materials 0.000 claims 1
- 239000010936 titanium Substances 0.000 claims 1
Claims (7)
前記第２の複合酸化物を加熱する第２の工程と、を有し、A second step of heating the second composite oxide,
前記第１の工程と、前記第２の工程と、を複数回繰り返し行い、第３の複合酸化物を作製する、正極活物質の作製方法。A method for producing a positive electrode active material, wherein the first step and the second step are repeated a plurality of times to produce a third composite oxide.
前記第１の複合酸化物の比表面積よりも、前記第３の複合酸化物の比表面積が小さい、正極活物質の作製方法。 In claim 1,
A method for producing a positive electrode active material, wherein the specific surface area of the third composite oxide is smaller than the specific surface area of the first composite oxide.
前記第１の複合酸化物の平均粒子径と、前記第３の複合酸化物の平均粒子径との差は、１０μｍ以内である、正極活物質の作製方法。 Oite to claim 1 or claim 2,
The average and particle size of the first composite oxide, the average difference between the particle diameter of the third mixed oxide is within 10 [mu] m, the method for manufacturing a positive electrode active material.
前記加熱は、７００℃以上１０００℃以下で行われる、正極活物質の作製方法。 In any one of claims 1 to 3,
The method for producing a positive electrode active material, wherein the heating is performed at 700 ° C. or higher and 1000 ° C. or lower.
前記第２の複合酸化物を加熱する第１の工程と、A first step of heating the second composite oxide;
前記第１の工程の後、第２の金属アルコキシドを含むアルコール溶液に、前記第２の複合酸化物を混合し、水蒸気を含む雰囲気中で撹拌することで、前記第２の複合酸化物が第２の金属酸化物で被覆されて第３の複合酸化物が作製される第３の工程と、After the first step, the second composite oxide is mixed with an alcohol solution containing a second metal alkoxide, and the mixture is stirred in an atmosphere containing water vapor, so that the second composite oxide becomes the second composite oxide. A third step of forming a third composite oxide by coating with the metal oxide of No. 2;
前記第３の複合酸化物を加熱する第４の工程と、A fourth step of heating the third composite oxide;
を経る、正極活物質の作製方法。, A method for producing a positive electrode active material.
前記第１の工程および前記第２の工程における加熱は、７００℃以上１０００℃以下で行われる、正極活物質の作製方法。 In claim 5,
The method for manufacturing a positive electrode active material, wherein the heating in the first step and the second step is performed at 700 ° C or higher and 1000 ° C or lower.
前記第１の金属酸化物および第２の金属酸化物はチタンを含む、正極活物質の作製方法。 In claim 5 or claim 6 ,
The first metal oxide and second metal oxide comprises titanium, a method for manufacturing a positive electrode active material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2017012928A JP6845699B2 (en) | 2017-01-27 | 2017-01-27 | Method for producing positive electrode active material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2017012928A JP6845699B2 (en) | 2017-01-27 | 2017-01-27 | Method for producing positive electrode active material |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| JP2018120812A JP2018120812A (en) | 2018-08-02 |
| JP2018120812A5 true JP2018120812A5 (en) | 2020-03-12 |
| JP6845699B2 JP6845699B2 (en) | 2021-03-24 |
Family
ID=63043145
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2017012928A Active JP6845699B2 (en) | 2017-01-27 | 2017-01-27 | Method for producing positive electrode active material |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP6845699B2 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110176596A (en) * | 2019-06-17 | 2019-08-27 | 启东启澳新材料科技发展有限公司 | A method of improving lithium battery anode coating material chemical property |
| WO2022096989A1 (en) | 2020-11-09 | 2022-05-12 | 株式会社半導体エネルギー研究所 | Positive electrode active material, lithium ion secondary battery and vehicle |
| CN118651901A (en) * | 2024-08-21 | 2024-09-17 | 河南科隆新能源股份有限公司 | Optimized repair method for surface cracks of positive electrode material precursor |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100309769B1 (en) * | 1999-06-17 | 2001-11-01 | 김순택 | Positive active material for lithium secondary battery and method of preparing the same |
| US6984469B2 (en) * | 2000-09-25 | 2006-01-10 | Samsung Sdi Co., Ltd. | Positive active material for rechargeable lithium batteries and method of preparing same |
-
2017
- 2017-01-27 JP JP2017012928A patent/JP6845699B2/en active Active
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