JP6876955B2 - 正極活物質、および、電池 - Google Patents
正極活物質、および、電池 Download PDFInfo
- Publication number
- JP6876955B2 JP6876955B2 JP2017016671A JP2017016671A JP6876955B2 JP 6876955 B2 JP6876955 B2 JP 6876955B2 JP 2017016671 A JP2017016671 A JP 2017016671A JP 2017016671 A JP2017016671 A JP 2017016671A JP 6876955 B2 JP6876955 B2 JP 6876955B2
- Authority
- JP
- Japan
- Prior art keywords
- positive electrode
- active material
- electrode active
- battery
- energy density
- 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
Images
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
- H01M4/48—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
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
- C01G45/00—Compounds of manganese
- C01G45/12—Manganates manganites or permanganates
- C01G45/1221—Manganates or manganites with a manganese oxidation state of Mn(III), Mn(IV) or mixtures thereof
- C01G45/1228—Manganates or manganites with a manganese oxidation state of Mn(III), Mn(IV) or mixtures thereof of the type [MnO2]n-, e.g. LiMnO2, Li[MxMn1-x]O2
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
- C01G51/00—Compounds of cobalt
- C01G51/40—Cobaltates
- C01G51/42—Cobaltates containing alkali metals, e.g. LiCoO2
- C01G51/44—Cobaltates containing alkali metals, e.g. LiCoO2 containing manganese
- C01G51/50—Cobaltates containing alkali metals, e.g. LiCoO2 containing manganese of the type [MnO2]n-, e.g. Li(CoxMn1-x)O2, Li(MyCoxMn1-x-y)O2
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
- C01G53/00—Compounds of nickel
- C01G53/40—Nickelates
- C01G53/42—Nickelates containing alkali metals, e.g. LiNiO2
- C01G53/44—Nickelates containing alkali metals, e.g. LiNiO2 containing manganese
- C01G53/50—Nickelates containing alkali metals, e.g. LiNiO2 containing manganese of the type [MnO2]n-, e.g. Li(NixMn1-x)O2, Li(MyNixMn1-x-y)O2
-
- 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
-
- 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
- C01P2002/72—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
-
- 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
-
- 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
- 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
Description
LixMeyO2・・・式(1)
ここで、前記MeはMnであるか、または、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とMnであるか、または、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とNiとMnであるか、または、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であるか、または、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とMnであるか、または、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とNiとMnであるか、または、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]
公知の方法でリチウム複合マンガン酸化物(Li2MnO3)を得た。
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。
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。
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 (6)
- 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正極活物質。
LixMeyO2・・・式(1)
(ここで、前記MeはMnであるか、または、Co、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とMnであるか、または、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とNiとMn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。) - 1.5≦x/y≦2.0、を満たす、
請求項1に記載の正極活物質。 - 1.9≦x+y≦2.0、を満たす、
請求項1または2に記載の正極活物質。 - 請求項1から3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4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4または5に記載の電池。
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2016029412 | 2016-02-19 | ||
JP2016029412 | 2016-02-19 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2017152369A JP2017152369A (ja) | 2017-08-31 |
JP6876955B2 true JP6876955B2 (ja) | 2021-05-26 |
Family
ID=59630183
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2017016671A Active JP6876955B2 (ja) | 2016-02-19 | 2017-02-01 | 正極活物質、および、電池 |
Country Status (3)
Country | Link |
---|---|
US (1) | US20170244103A1 (ja) |
JP (1) | JP6876955B2 (ja) |
CN (1) | CN107104231A (ja) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP6609217B2 (ja) * | 2016-05-11 | 2019-11-20 | 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、非水電解質二次電池用正極、非水電解質二次電池及び複合酸化物の製造方法 |
EP3745422A4 (en) * | 2018-01-26 | 2021-03-10 | Panasonic Intellectual Property Management Co., Ltd. | SOLID ELECTROLYTE AND BATTERY |
EP3745518B1 (en) * | 2018-01-26 | 2022-04-13 | Panasonic Intellectual Property Management Co., Ltd. | Battery |
EP4014265A4 (en) * | 2019-08-13 | 2023-09-13 | The Regents of the University of California | LITHIUM-MANGANESE OXIDES OR OXYFLUORIDES WITH DISORDERED ROCK SALT STRUCTURES |
US20230335729A1 (en) * | 2020-08-31 | 2023-10-19 | Panasonic Intellectual Property Management Co., Ltd. | Positive electrode active material for secondary batteries, and secondary battery |
EP4224578A4 (en) * | 2020-09-30 | 2024-04-03 | Panasonic Ip Man Co Ltd | POSITIVE ELECTRODE ACTIVE MATERIAL FOR SECONDARY BATTERIES AND SECONDARY BATTERY |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3611189B2 (ja) * | 2000-03-03 | 2005-01-19 | 日産自動車株式会社 | 非水電解質二次電池用正極活物質および非水電解質二次電池 |
WO2006123572A1 (ja) * | 2005-05-17 | 2006-11-23 | Sony Corporation | 正極活物質およびその製造方法、並びに電池 |
JP4735982B2 (ja) * | 2006-11-16 | 2011-07-27 | 独立行政法人産業技術総合研究所 | リチウム−鉄−マンガン複合酸化物 |
JP5673932B2 (ja) * | 2010-10-28 | 2015-02-18 | 独立行政法人産業技術総合研究所 | 立方晶岩塩型構造を有するリチウムマンガン系複合酸化物およびその製造方法 |
CN102219262B (zh) * | 2011-05-10 | 2013-04-03 | 北京科技大学 | 一种改进的低热固相反应制备层状富锂锰镍氧化物的方法 |
EP3944374B1 (en) * | 2012-10-02 | 2023-06-21 | Massachusetts Institute Of Technology | High-capacity positive electrode active material |
JP6721954B2 (ja) * | 2015-07-27 | 2020-07-15 | 株式会社Gsユアサ | 非水電解質電池用正極活物質 |
-
2016
- 2016-11-15 CN CN201611026656.6A patent/CN107104231A/zh active Pending
-
2017
- 2017-01-16 US US15/406,842 patent/US20170244103A1/en not_active Abandoned
- 2017-02-01 JP JP2017016671A patent/JP6876955B2/ja active Active
Also Published As
Publication number | Publication date |
---|---|
US20170244103A1 (en) | 2017-08-24 |
CN107104231A (zh) | 2017-08-29 |
JP2017152369A (ja) | 2017-08-31 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JP6952247B2 (ja) | 正極活物質、および、電池 | |
JP6872705B2 (ja) | 正極活物質、および、電池 | |
JP6979586B2 (ja) | 電池用正極活物質、および、電池用正極活物質を用いた電池 | |
JP6964246B2 (ja) | 正極活物質、および、正極活物質を用いた電池 | |
JP6952251B2 (ja) | 電池用正極活物質、および、電池 | |
JP6846627B2 (ja) | 正極活物質、および、電池 | |
JP6876955B2 (ja) | 正極活物質、および、電池 | |
JP6979594B2 (ja) | 正極活物質、および、電池 | |
JP6990854B2 (ja) | 正極活物質、および、電池 | |
JP6941811B2 (ja) | 電池用正極活物質、および、電池 | |
JP6876956B2 (ja) | 正極活物質、および、電池 | |
US20210005883A1 (en) | Positive-electrode active material and battery | |
JPWO2018220882A1 (ja) | 正極活物質、および、電池 | |
JP6861400B2 (ja) | 正極活物質、および、電池 | |
JP2021073666A (ja) | 正極活物質、および、電池 | |
JP2017004941A (ja) | 電池用正極活物質、および、電池 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
A621 | Written request for application examination |
Free format text: JAPANESE INTERMEDIATE CODE: A621 Effective date: 20191227 |
|
A977 | Report on retrieval |
Free format text: JAPANESE INTERMEDIATE CODE: A971007 Effective date: 20200812 |
|
A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20200818 |
|
A521 | Written amendment |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20201012 |
|
TRDD | Decision of grant or rejection written | ||
A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 20210323 |
|
A61 | First payment of annual fees (during grant procedure) |
Free format text: JAPANESE INTERMEDIATE CODE: A61 Effective date: 20210409 |
|
R151 | Written notification of patent or utility model registration |
Ref document number: 6876955 Country of ref document: JP Free format text: JAPANESE INTERMEDIATE CODE: R151 |