JP2019032954A5 - Lithium ion secondary battery - Google Patents
Lithium ion secondary battery Download PDFInfo
- Publication number
- JP2019032954A5 JP2019032954A5 JP2017152090A JP2017152090A JP2019032954A5 JP 2019032954 A5 JP2019032954 A5 JP 2019032954A5 JP 2017152090 A JP2017152090 A JP 2017152090A JP 2017152090 A JP2017152090 A JP 2017152090A JP 2019032954 A5 JP2019032954 A5 JP 2019032954A5
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- JP
- Japan
- Prior art keywords
- concentration
- magnesium
- secondary battery
- ion secondary
- surface layer
- 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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- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium Ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 title claims 6
- 229910001416 lithium ion Inorganic materials 0.000 title claims 6
- FYYHWMGAXLPEAU-UHFFFAOYSA-N magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 claims 17
- 229910052749 magnesium Inorganic materials 0.000 claims 17
- 239000011777 magnesium Substances 0.000 claims 17
- 239000002344 surface layer Substances 0.000 claims 9
- 229910052736 halogen Inorganic materials 0.000 claims 8
- 150000002367 halogens Chemical class 0.000 claims 8
- PXHVJJICTQNCMI-UHFFFAOYSA-N nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims 8
- 239000007774 positive electrode material Substances 0.000 claims 8
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 claims 4
- 229910052803 cobalt Inorganic materials 0.000 claims 4
- 239000010941 cobalt Substances 0.000 claims 4
- PWHULOQIROXLJO-UHFFFAOYSA-N manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 claims 4
- 229910052748 manganese Inorganic materials 0.000 claims 4
- 239000011572 manganese Substances 0.000 claims 4
- 229910052759 nickel Inorganic materials 0.000 claims 4
- 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
Claims (5)
前記正極活物質は、内部および表層部に、マグネシウムおよびハロゲンを有し、The positive electrode active material has magnesium and halogen inside and on the surface layer.
前記表層部のマグネシウムの濃度は、前記内部のマグネシウムの濃度より高く、The concentration of magnesium in the surface layer is higher than the concentration of magnesium inside.
前記表層部のハロゲンの濃度は、前記内部のフッ素の濃度より高いリチウムイオン二次電池。A lithium ion secondary battery in which the concentration of halogen on the surface layer is higher than the concentration of fluorine inside.
前記正極活物質は、内部および表層部に、マグネシウムを有し、The positive electrode active material has magnesium inside and on the surface layer, and has magnesium.
前記表層部のマグネシウムの濃度は、前記内部のマグネシウムの濃度より高い、リチウムイオン二次電池。A lithium ion secondary battery in which the concentration of magnesium on the surface layer is higher than the concentration of magnesium inside.
前記正極活物質は、内部、表層部、および結晶粒界およびその近傍に、マグネシウムおよびハロゲンを有し、The positive electrode active material has magnesium and halogen inside, on the surface, and at and near the grain boundaries.
前記表層部のマグネシウムの濃度は、前記内部のマグネシウムの濃度より高く、The concentration of magnesium in the surface layer is higher than the concentration of magnesium inside.
前記結晶粒界およびその近傍のマグネシウムの濃度は、前記内部のマグネシウムの濃度より高く、The concentration of magnesium at and near the grain boundaries is higher than the concentration of magnesium inside.
前記表層部のハロゲンの濃度は、前記内部のハロゲンの濃度より高く、The concentration of halogen on the surface layer is higher than the concentration of halogen inside.
前記結晶粒界およびその近傍のハロゲンの濃度は、前記内部のハロゲンの濃度より高The concentration of halogen in and near the grain boundaries is higher than the concentration of halogen inside.
いリチウムイオン二次電池。Lithium-ion secondary battery.
前記正極活物質は、内部、表層部、および結晶粒界およびその近傍に、マグネシウムを有し、The positive electrode active material has magnesium inside, on the surface layer, and at and near the grain boundaries.
前記表層部のマグネシウムの濃度は、前記内部のマグネシウムの濃度より高く、The concentration of magnesium in the surface layer is higher than the concentration of magnesium inside.
前記結晶粒界およびその近傍のマグネシウムの濃度は、前記内部のマグネシウムの濃度より高いリチウムイオン二次電池。A lithium ion secondary battery in which the concentration of magnesium at and near the grain boundaries is higher than the concentration of magnesium inside.
前記ハロゲンは、フッ素であるリチウムイオン二次電池。The halogen is a lithium ion secondary battery which is fluorine.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2017152090A JP7081908B2 (en) | 2017-08-07 | 2017-08-07 | Lithium ion secondary battery |
| JP2022085939A JP7237221B2 (en) | 2017-08-07 | 2022-05-26 | lithium ion secondary battery |
| JP2023029518A JP2023076432A (en) | 2017-08-07 | 2023-02-28 | Manufacturing method for positive electrode active material and manufacturing method for lithium ion secondary battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2017152090A JP7081908B2 (en) | 2017-08-07 | 2017-08-07 | Lithium ion secondary battery |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2022085939A Division JP7237221B2 (en) | 2017-08-07 | 2022-05-26 | lithium ion secondary battery |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| JP2019032954A JP2019032954A (en) | 2019-02-28 |
| JP2019032954A5 true JP2019032954A5 (en) | 2020-09-17 |
| JP7081908B2 JP7081908B2 (en) | 2022-06-07 |
Family
ID=65523606
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2017152090A Active JP7081908B2 (en) | 2017-08-07 | 2017-08-07 | Lithium ion secondary battery |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP7081908B2 (en) |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20210151153A (en) * | 2019-04-12 | 2021-12-13 | 가부시키가이샤 한도오따이 에네루기 켄큐쇼 | Method of manufacturing a cathode active material |
| KR102566003B1 (en) * | 2019-05-03 | 2023-08-11 | 주식회사 엘지에너지솔루션 | Method for preparing positive electrode for secondary battery, positive electrode manufactured through the method and lithium secondary battery comprising the same |
| JP7232431B2 (en) * | 2019-10-09 | 2023-03-03 | 住友電気工業株式会社 | Electrodes, battery cells, cell stacks, and redox flow battery systems |
| CN111129450B (en) | 2019-12-02 | 2023-09-29 | 华为技术有限公司 | Positive electrode material of lithium ion battery and preparation method thereof |
| US20230044210A1 (en) * | 2019-12-27 | 2023-02-09 | Semiconductor Energy Laboratory Co., Ltd. | Positive Electrode Active Material Layer, Active Material Layer, Positive Electrode, Secondary Battery, and Vehicle |
| CN115516689A (en) * | 2020-05-22 | 2022-12-23 | 株式会社半导体能源研究所 | Secondary battery and vehicle including the same |
| KR20210146521A (en) | 2020-05-27 | 2021-12-06 | 주식회사 엘지에너지솔루션 | Diagnostic method of cause of degradation of lithium secondary battery |
| CN114094061A (en) * | 2021-10-09 | 2022-02-25 | 温州大学 | Rice-grain-shaped manganese carbonate composite graphene high-performance lithium storage material and lithium battery |
| WO2023242670A1 (en) * | 2022-06-17 | 2023-12-21 | 株式会社半導体エネルギー研究所 | Lithium-ion secondary battery |
| CN115863610B (en) * | 2023-01-05 | 2024-01-30 | 厦门海辰储能科技股份有限公司 | Positive electrode material, positive electrode plate, electrode assembly, energy storage device and electric equipment |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU2003212009A1 (en) * | 2002-02-15 | 2003-09-04 | Seimi Chemical Co., Ltd. | Particulate positive electrode active material for lithium secondary cell |
| JP4259393B2 (en) * | 2003-05-15 | 2009-04-30 | 日亜化学工業株式会社 | Positive electrode active material for non-aqueous electrolyte secondary battery and non-aqueous electrolyte secondary battery |
| CN1329307C (en) * | 2003-09-16 | 2007-08-01 | 清美化学股份有限公司 | Composite oxide containing lithium, nickel, cobalt, manganese, and fluorine, process for producing the same, and lithium secondary cell employing it |
| JP4777733B2 (en) * | 2005-09-29 | 2011-09-21 | Ａｇｃセイミケミカル株式会社 | Method for producing lithium-containing composite oxide |
| JP6476776B2 (en) * | 2014-11-13 | 2019-03-06 | 日立金属株式会社 | Positive electrode active material, positive electrode, and lithium ion secondary battery |
-
2017
- 2017-08-07 JP JP2017152090A patent/JP7081908B2/en active Active
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