JP2017152370A - 正極活物質、および、電池 - Google Patents
正極活物質、および、電池 Download PDFInfo
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- JP2017152370A JP2017152370A JP2017016672A JP2017016672A JP2017152370A JP 2017152370 A JP2017152370 A JP 2017152370A JP 2017016672 A JP2017016672 A JP 2017016672A JP 2017016672 A JP2017016672 A JP 2017016672A JP 2017152370 A JP2017152370 A JP 2017152370A
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- 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
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- 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
- H01M4/485—Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of mixed oxides or hydroxides for inserting or intercalating light metals, e.g. LiTi2O4 or LiTi2OxFy
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
- C01G45/00—Compounds of manganese
- C01G45/12—Complex oxides containing manganese and at least one other metal element
- C01G45/1221—Manganates or manganites with trivalent manganese, tetravalent manganese or mixtures thereof
- C01G45/1228—Manganates or manganites with trivalent manganese, tetravalent manganese or mixtures thereof of the type (MnO2)-, e.g. LiMnO2 or Li(MxMn1-x)O2
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
- C01G51/00—Compounds of cobalt
- C01G51/40—Complex oxides containing cobalt and at least one other metal element
- C01G51/42—Complex oxides containing cobalt and at least one other metal element containing alkali metals, e.g. LiCoO2
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
- C01G53/00—Compounds of nickel
- C01G53/40—Complex oxides containing nickel and at least one other metal element
- C01G53/42—Complex oxides containing nickel and at least one other metal element containing alkali metals, e.g. LiNiO2
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- 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
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- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2002/00—Crystal-structural characteristics
- C01P2002/70—Crystal-structural characteristics defined by measured X-ray, neutron or electron diffraction data
- C01P2002/72—Crystal-structural characteristics defined by measured X-ray, neutron or electron diffraction data by d-values or two theta-values, e.g. as X-ray diagram
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2002/00—Crystal-structural characteristics
- C01P2002/70—Crystal-structural characteristics defined by measured X-ray, neutron or electron diffraction data
- C01P2002/76—Crystal-structural characteristics defined by measured X-ray, neutron or electron diffraction data by a space-group or by other symmetry indications
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- 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
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- 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
- H01M2004/026—Electrodes composed of, or comprising, active material characterised by the polarity
- H01M2004/028—Positive electrodes
-
- 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
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- Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
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- Chemical Kinetics & Catalysis (AREA)
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- Manufacturing & Machinery (AREA)
- Battery Electrode And Active Subsutance (AREA)
- Secondary Cells (AREA)
Abstract
Description
LixMeyO2・・・式(1)
ここで、前記MeはMn、Nb、Ti、Ni、Co、Fe、Sn、Cu、Mo、Bi、V、Crからなる群より選択される一種または二種以上の元素であり、
かつ、下記の条件、
0.5≦x/y≦3.0、
1.5≦x+y≦2.3、
を満たす。
実施の形態1における正極活物質は、空間群Fm−3mに属する結晶構造を有し、下記の組成式(1)により表される化合物を含む。
LixMeyO2・・・式(1)
ここで、前記MeはMn、Nb、Ti、Ni、Co、Fe、Sn、Cu、Mo、Bi、V、Crからなる群より選択される一種または二種以上の元素である。
かつ、実施の形態1における正極活物質においては、上述の化合物は、組成式(1)において、下記の条件、
0.5≦x/y≦3.0、
1.5≦x+y≦2.3、
を満たす。
以下に、実施の形態1の正極活物質に含まれる上述の化合物の製造方法の一例が、説明される。
以下、実施の形態2が説明される。なお、上述の実施の形態1と重複する説明は、適宜、省略される。
[正極活物質の作製]
Li2OとMn2O3とNb2O5をLi2O/Mn2O3/Nb2O5=6/3/1のモル比でそれぞれ秤量した。
次に、70質量部の上述の化合物と、20質量部の導電剤と、10質量部のポリフッ化ビニリデン(PVDF)と、適量の2−メチルピロリドン(NMP)とを、混合した。これにより、正極合剤スラリーを得た。
上述の実施例1から、前駆体を、それぞれ変えた。
前駆体として、Li2O2とLiCoO2とを用いた。
公知の方法を用いて、空間群R3−Mに属するLiNiO2を合成した。
公知の方法を用いて、空間群R3−Mに属するLiCoO2を合成した。
Li2CO3とMn2O3とNb2O5をLi2CO3/Mn2O3/Nb2O5=0.6/0.3/0.1のモル比でそれぞれ秤量した。
上述の比較例1から、前駆体を、それぞれ変えた。
公知の方法を用いて、空間群R3−Mに属するLiNiO2を合成した。
正極に対する電流密度を1.0mA/cm2に設定し、5.2Vの電圧に達するまで、実施例1の電池を充電した。
11 ケース
12 正極集電体
13 正極活物質層
14 セパレータ
15 封口板
16 負極集電体
17 負極活物質層
18 ガスケット
21 正極
22 負極
Claims (8)
- 空間群Fm−3mに属する結晶構造を有し、下記の組成式(1)により表され、粉末X線回折(XRD)における(200)面の回折ピークの2θでの半値幅が0.9°以上かつ2.4°以下である化合物を含む正極活物質。
LixMeyO2・・・式(1)、
(ここで、前記MeはMn、Nb、Ti、Ni、Co、Fe、Sn、Cu、Mo、Bi、V、Crからなる群より選択される一種または二種以上の元素であり、
かつ、下記の条件、
0.5≦x/y≦3.0、
1.5≦x+y≦2.3、
を満たす。) - 前記MeはMnを含む、
請求項1に記載の正極活物質。 - 粉末X線回折(XRD)において、(200)面の回折ピークの2θでの半値幅が、1.5°以上かつ2.2°以下である、
請求項1または2に記載の正極活物質。 - 1.5≦x/y≦2.0、を満たす、
請求項1から3のいずれかに記載の正極活物質。 - 1.9≦x+y≦2.0、を満たす、
請求項1から4のいずれかに記載の正極活物質。 - 請求項1から5のいずれかに記載の正極活物質を含む正極と、
負極と、
電解質と、
を備える、
電池。 - 前記正極は、前記正極活物質を主成分として含む正極活物質層を備える、
請求項6に記載の電池。 - 前記負極は、リチウムを吸蔵および放出しうる負極活物質を含み、
前記電解質は、非水電解液である、
請求項6または7に記載の電池。
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2016029413 | 2016-02-19 | ||
| JP2016029413 | 2016-02-19 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2017152370A true JP2017152370A (ja) | 2017-08-31 |
| JP6876956B2 JP6876956B2 (ja) | 2021-05-26 |
Family
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2017016672A Active JP6876956B2 (ja) | 2016-02-19 | 2017-02-01 | 正極活物質、および、電池 |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US20170244104A1 (ja) |
| JP (1) | JP6876956B2 (ja) |
| CN (1) | CN107104232B (ja) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2017202954A (ja) * | 2016-05-11 | 2017-11-16 | 株式会社Gsユアサ | 複合酸化物、非水電解質二次電池用正極活物質、非水電解二次電池用正極、非水電解質二次電池、複合酸化物の製造方法及び非水電解質二次電池の製造方法 |
| JPWO2022070896A1 (ja) * | 2020-09-30 | 2022-04-07 | ||
| WO2025063203A1 (ja) * | 2023-09-21 | 2025-03-27 | 株式会社プロテリアル | リチウムイオン二次電池用正極活物質の前駆体及びその製造方法、並びにリチウムイオン二次電池用正極活物質及びその製造方法 |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10280092B2 (en) * | 2016-07-28 | 2019-05-07 | Wildcat Discovery Technologies, Inc | Oxides for high energy cathode materials |
| GB2591433B (en) | 2019-10-22 | 2024-07-10 | Dyson Technology Ltd | A cathode composition |
| GB2589063B (en) | 2019-10-22 | 2024-11-20 | Dyson Technology Ltd | A cathode composition |
| GB2613895B (en) * | 2021-12-20 | 2024-12-18 | Dyson Technology Ltd | A cathode composition |
| GB2613896A (en) * | 2021-12-20 | 2023-06-21 | Dyson Technology Ltd | A cathode composition |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2015032515A (ja) * | 2013-08-05 | 2015-02-16 | 国立大学法人 東京大学 | 遷移金属固溶アルカリ金属化合物 |
| JP2017027881A (ja) * | 2015-07-27 | 2017-02-02 | 株式会社Gsユアサ | 非水電解質電池用正極活物質 |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6482374B1 (en) * | 1999-06-16 | 2002-11-19 | Nanogram Corporation | Methods for producing lithium metal oxide particles |
| JP5486516B2 (ja) * | 2009-02-05 | 2014-05-07 | Agcセイミケミカル株式会社 | リチウムイオン二次電池用正極活物質用の表面修飾リチウム含有複合酸化物及びその製造方法 |
| CN102576869B (zh) * | 2009-09-30 | 2016-01-20 | 户田工业株式会社 | 正极活性物质颗粒粉末及其制造方法、以及非水电解质二次电池 |
| JP6011838B2 (ja) * | 2011-08-31 | 2016-10-19 | トヨタ自動車株式会社 | リチウム二次電池 |
| EP4160739A1 (en) * | 2012-10-02 | 2023-04-05 | Massachusetts Institute Of Technology | High-capacity positive electrode active material |
| US9692043B2 (en) * | 2013-03-27 | 2017-06-27 | Tokyo University Of Science Educational Foundation Administrative Organization | Active material for nonaqueous electrolyte energy storage device |
| JP6471025B2 (ja) * | 2014-06-27 | 2019-02-13 | 住友化学株式会社 | リチウム含有複合酸化物およびその製造方法 |
-
2016
- 2016-12-02 CN CN201611096306.7A patent/CN107104232B/zh active Active
-
2017
- 2017-01-16 US US15/406,825 patent/US20170244104A1/en not_active Abandoned
- 2017-02-01 JP JP2017016672A patent/JP6876956B2/ja active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2015032515A (ja) * | 2013-08-05 | 2015-02-16 | 国立大学法人 東京大学 | 遷移金属固溶アルカリ金属化合物 |
| JP2017027881A (ja) * | 2015-07-27 | 2017-02-02 | 株式会社Gsユアサ | 非水電解質電池用正極活物質 |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2017202954A (ja) * | 2016-05-11 | 2017-11-16 | 株式会社Gsユアサ | 複合酸化物、非水電解質二次電池用正極活物質、非水電解二次電池用正極、非水電解質二次電池、複合酸化物の製造方法及び非水電解質二次電池の製造方法 |
| JPWO2022070896A1 (ja) * | 2020-09-30 | 2022-04-07 | ||
| WO2022070896A1 (ja) * | 2020-09-30 | 2022-04-07 | パナソニックIpマネジメント株式会社 | 二次電池用正極活物質および二次電池 |
| WO2025063203A1 (ja) * | 2023-09-21 | 2025-03-27 | 株式会社プロテリアル | リチウムイオン二次電池用正極活物質の前駆体及びその製造方法、並びにリチウムイオン二次電池用正極活物質及びその製造方法 |
Also Published As
| Publication number | Publication date |
|---|---|
| US20170244104A1 (en) | 2017-08-24 |
| CN107104232B (zh) | 2022-01-07 |
| CN107104232A (zh) | 2017-08-29 |
| JP6876956B2 (ja) | 2021-05-26 |
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