WO2012073551A1 - Matériau actif d'électrode positive pour une batterie au lithium-ion, électrode positive pour une batterie au lithium-ion, et batterie au lithium-ion - Google Patents

Matériau actif d'électrode positive pour une batterie au lithium-ion, électrode positive pour une batterie au lithium-ion, et batterie au lithium-ion Download PDF

Info

Publication number
WO2012073551A1
WO2012073551A1 PCT/JP2011/066727 JP2011066727W WO2012073551A1 WO 2012073551 A1 WO2012073551 A1 WO 2012073551A1 JP 2011066727 W JP2011066727 W JP 2011066727W WO 2012073551 A1 WO2012073551 A1 WO 2012073551A1
Authority
WO
WIPO (PCT)
Prior art keywords
positive electrode
ion battery
lithium
lithium ion
active material
Prior art date
Application number
PCT/JP2011/066727
Other languages
English (en)
Japanese (ja)
Inventor
小林　俊介
梶谷　芳男
Original Assignee
Jx日鉱日石金属株式会社
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Jx日鉱日石金属株式会社 filed Critical Jx日鉱日石金属株式会社
Priority to JP2012546714A priority Critical patent/JP5973352B2/ja
Publication of WO2012073551A1 publication Critical patent/WO2012073551A1/fr

Links

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
    • H01M4/52—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
    • 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
    • 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
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2004/00—Particle morphology
    • C01P2004/60—Particles characterised by their size
    • C01P2004/61—Micrometer sized, i.e. from 1-100 micrometer
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2006/00—Physical properties of inorganic compounds
    • C01P2006/12—Surface area
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2006/00—Physical properties of inorganic compounds
    • C01P2006/40—Electric properties
    • 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
    • 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
    • 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

Definitions

  • the present invention relates to a positive electrode active material for a lithium ion battery, a positive electrode for a lithium ion battery, and a lithium ion battery.
  • Lithium-containing transition metal oxides are generally used as positive electrode active materials for lithium ion batteries. Specifically, lithium cobaltate (LiCoO 2 ), lithium nickelate (LiNiO 2 ), lithium manganate (LiMn 2 O 4 ), etc., improved characteristics (higher capacity, cycle characteristics, storage characteristics, reduced internal resistance) In order to improve the rate characteristics and safety, it is underway to combine them. Lithium ion batteries for large-scale applications such as in-vehicle use and load leveling are required to have different characteristics from those of conventional mobile phones and personal computers.
  • Patent Document 1 discloses: Li x Ni 1- y My O 2- ⁇ (0.8 ⁇ x ⁇ 1.3, 0 ⁇ y ⁇ 0.5, and M is Co, Mn, Fe, Cr, V, Ti, Cu, Al, Ga, Bi, Sn, Zn, Mg, It represents at least one element selected from the group consisting of Ge, Nb, Ta, Be, B, Ca, Sc and Zr, ⁇ corresponds to oxygen deficiency or oxygen excess, ⁇ 0.1 ⁇ ⁇ 0.1
  • a method for producing a positive electrode material for a lithium secondary battery characterized in that small substances are blended at a weight ratio of 0: 100 to 100: 0. And according to this, it is described that the positive electrode material for lithium secondary batteries with various balance of rate characteristics and capacity can be easily manufactured.
  • Patent Document 1 Although the lithium nickel composite oxide described in Patent Document 1 has an excessive amount of oxygen in its composition formula, there is still room for improvement as a high-quality positive electrode active material for lithium ion batteries.
  • an object of the present invention is to provide a positive electrode active material for a lithium ion battery having good battery characteristics.
  • the present inventors have found that there is a close correlation between the amount of oxygen of the positive electrode active material and the battery characteristics. That is, it has been found that particularly good battery characteristics can be obtained when the amount of oxygen in the positive electrode active material is greater than or equal to a certain value. In addition, it has been found that better battery characteristics can be obtained by controlling the particle size distribution and angle of repose of the powder in a positive electrode active material having an oxygen amount of a certain value or more.
  • Composition formula Li (Li x Ni 1- xy M y) O 2 + ⁇
  • M is selected from Co as an essential component and Sc, Ti, V, Cr, Mn, Fe, Cu, Zn, Ga, Ge, Al, Bi, Sn, Mg, Ca, B, and Zr. 1 or more selected from the above, 0 ⁇ x ⁇ 0.1, 0 ⁇ y ⁇ 0.7, and ⁇ > 0.
  • the positive electrode active material for lithium ion batteries has a median diameter of 1 to 20 ⁇ m and a repose angle of 80 ° or less.
  • the positive electrode active material for a lithium ion battery according to the present invention has an angle of repose of 30 to 80 °.
  • the positive electrode active material for a lithium ion battery according to the present invention has an angle of repose of 50 to 80 °.
  • the positive electrode active material for a lithium ion battery according to the present invention has a median diameter of 5 to 17 ⁇ m.
  • the positive electrode active material for a lithium ion battery according to the present invention is at least one selected from Mn and Co.
  • the positive electrode active material for a lithium ion battery according to the present invention has ⁇ > 0.05 in the composition formula.
  • the positive electrode active material for a lithium ion battery according to the present invention has ⁇ > 0.1 in the composition formula.
  • the positive electrode active material for a lithium ion battery according to the present invention has a specific surface area of 0.2 to 1.0 cm 2 / g.
  • the positive electrode active material for a lithium ion battery according to the present invention has a specific surface area of 0.3 to 0.7 cm 2 / g.
  • the present invention is a positive electrode for a lithium ion battery using the positive electrode active material for a lithium ion battery according to the present invention.
  • the present invention is a lithium ion battery using the positive electrode for a lithium ion battery according to the present invention.
  • a positive electrode active material for a lithium ion battery having good battery characteristics can be provided.
  • lithium cobaltate LiCoO 2
  • lithium-containing transition metal oxides such as lithium nickelate (LiNiO 2 ) and lithium manganate (LiMn 2 O 4 ).
  • the positive electrode active material for a lithium ion battery of the present invention produced using such a material is Composition formula: Li (Li x Ni 1- xy M y) O 2 + ⁇
  • M is selected from Co as an essential component and Sc, Ti, V, Cr, Mn, Fe, Cu, Zn, Ga, Ge, Al, Bi, Sn, Mg, Ca, B, and Zr. 1 or more selected from the above, 0 ⁇ x ⁇ 0.1, 0 ⁇ y ⁇ 0.7, and ⁇ > 0.
  • M is selected from Co as an essential component and Sc, Ti, V, Cr, Mn, Fe, Cu, Zn, Ga, Ge, Al, Bi, Sn, Mg, Ca, B, and Zr. 1 or more selected from the above, 0 ⁇ x ⁇ 0.1, 0 ⁇ y ⁇ 0.7, and ⁇ > 0.
  • oxygen is expressed as O 2 + ⁇ ( ⁇ > 0) as described above in the composition formula, and is excessively contained. Battery characteristics such as rate characteristics and capacity retention are improved.
  • ⁇ is preferably ⁇ > 0.05, and more preferably ⁇ > 0.1.
  • the positive electrode active material for a lithium ion battery of the present invention is composed of primary particles, secondary particles formed by aggregation of primary particles, or a mixture of primary particles and secondary particles.
  • the median diameter (median value of the average particle diameter) of the particle size distribution of these primary particles, secondary particles formed by aggregation of the primary particles, or a mixture of primary particles and secondary particles is 1 to 20 ⁇ m. If the median diameter is 1 to 20 ⁇ m, it becomes a powder in which variation is suppressed, it is possible to uniformly apply the active material during the production of an electrode of a lithium ion battery, and furthermore, variation in electrode composition can be suppressed. For this reason, when it uses for a lithium ion battery, a rate characteristic and cycling characteristics become favorable.
  • the median diameter is preferably 5 to 17 ⁇ m.
  • the positive electrode active material for a lithium ion battery of the present invention has an angle of repose of 80 ° or less.
  • the angle of repose is an inclination angle formed between a horizontal plane and a conical deposited layer produced by gently dropping powder from above.
  • the angle of repose is an index representing the adhesive force between the powder particles, and the smaller the angle of repose angle, the weaker the cohesiveness and the better the fluidity, that is, it can be said that the repose angle has a property that is difficult to cling.
  • the angle of repose is typically 15 to 80 °, preferably 30 to 80 °, and more preferably 50 to 80 °.
  • the positive electrode active material for a lithium ion battery of the present invention has a specific surface area of 0.2 to 1.0 cm 2 / g.
  • the specific surface area is preferably 0.3 to 0.7 cm 2 / g.
  • the positive electrode for a lithium ion battery includes, for example, a positive electrode mixture prepared by mixing a positive electrode active material for a lithium ion battery having the above-described configuration, a conductive additive, and a binder from an aluminum foil or the like.
  • the current collector has a structure provided on one side or both sides.
  • the lithium ion battery which concerns on embodiment of this invention is equipped with the positive electrode for lithium ion batteries of such a structure.
  • a metal salt solution is prepared.
  • the metal is at least one selected from Ni and Sc, Ti, V, Cr, Mn, Fe, Co, Cu, Zn, Ga, Ge, Al, Bi, Sn, Mg, Ca, B, and Zr. It is.
  • the metal salt is sulfate, chloride, nitrate, acetate, etc., and nitrate is particularly preferable.
  • each metal contained in the metal salt is adjusted so as to have a desired molar ratio. Thereby, the molar ratio of each metal in the positive electrode active material is determined.
  • lithium carbonate is suspended in pure water, and then the metal salt solution of the metal is added to prepare a metal carbonate solution slurry. At this time, fine particles of lithium-containing carbonate precipitate in the slurry. If the lithium compound does not react during heat treatment such as sulfate or chloride as a metal salt, it is washed with a saturated lithium carbonate solution and then filtered off. When the lithium compound reacts as a lithium raw material during the heat treatment, such as nitrate or acetate, it can be used as a calcined precursor by washing and drying as it is without washing. Next, the lithium-containing carbonate separated by filtration is dried to obtain a lithium salt composite (precursor for lithium ion battery positive electrode material) powder.
  • a lithium salt composite precursor for lithium ion battery positive electrode material
  • the precursor powder for a lithium ion battery positive electrode material obtained by drying is classified using a sieve or a commercially available classifier or the like to obtain only powder having a particle size of 1 to 30 ⁇ m.
  • a firing container having a capacity of a predetermined size is prepared, and the powder of the precursor for a lithium ion battery positive electrode material having a particle diameter of 1 to 30 ⁇ m is filled in the firing container.
  • the firing container filled with the precursor powder for the lithium ion battery positive electrode material is transferred to a firing furnace and fired. Firing is performed by heating and holding in an oxygen atmosphere for a predetermined time. Further, it is preferable to perform baking under a pressure of 101 to 202 KPa because the amount of oxygen in the composition further increases.
  • the powder is taken out from the firing container and pulverized using a commercially available pulverizer or the like to obtain a positive electrode active material powder. The crushing at this time is performed by appropriately adjusting the crushing strength and crushing time so that a desired median diameter and angle of repose can be obtained.
  • Examples 1 to 15 First, after suspending lithium carbonate of the input amount shown in Table 1 in 3.2 liters of pure water, 4.8 liter of metal salt solution was charged. Here, the nitrate hydrate of each metal was adjusted so that each metal might become the composition ratio of Table 1, and the total metal mole number might be set to 14 mol. Incidentally, a suspension of lithium carbonate, the product (lithium ion secondary battery positive electrode material, i.e. a cathode active material) x with Li (Li x Ni 1-xy M y) O 2 + ⁇ becomes a value shown in Table 1 Each of which is calculated by the following equation.
  • W (g) 73.9 ⁇ 14 ⁇ (1 + 0.5 ⁇ (1 + X) / (1-X) ⁇ ⁇ A
  • “A” is a numerical value to be multiplied in order to subtract the amount of lithium from the lithium compound other than lithium carbonate remaining in the raw material after filtration from the amount of suspension in addition to the amount necessary for the precipitation reaction. is there.
  • “A” is 0.9 when lithium salt reacts as a firing raw material such as nitrate or acetate, and “1” when lithium salt does not react as a firing raw material such as sulfate or chloride. 0.
  • fine particles of lithium-containing carbonate were precipitated in the solution, and this precipitate was filtered off using a filter press.
  • the precipitate was dried to obtain a lithium-containing carbonate (a precursor for a lithium ion battery positive electrode material).
  • the lithium carbonate obtained by drying was sieved and classified into particles having a particle size of 1 to 30 ⁇ m.
  • a firing container was prepared, and this firing container was filled with a lithium-containing carbonate.
  • the firing container was placed in an oxygen atmosphere furnace under atmospheric pressure, heated and held at the firing temperature shown in Table 1 for 10 hours, and then cooled to obtain an oxide.
  • the obtained oxide was pulverized to a median particle size of 1 to 20 ⁇ m using a small pulverizer (Hosokawa Micron ACM-2EC) to obtain a powder of a lithium ion secondary battery positive electrode material.
  • Example 16 Example 16 was carried out except that each raw material had a composition as shown in Table 1, the metal salt was chloride, lithium-containing carbonate was precipitated, washed with a saturated lithium carbonate solution, and filtered. The same treatment as in Examples 1 to 15 was performed.
  • Example 17 Example 17 was carried out except that each material of the raw material had the composition shown in Table 1, the metal salt was sulfate, the lithium-containing carbonate was precipitated, washed with a saturated lithium carbonate solution, and filtered. The same treatment as in Examples 1 to 15 was performed.
  • Example 18 As Example 18, the same processing as in Examples 1 to 15 was performed, except that each metal of the raw material had a composition as shown in Table 1 and calcination was performed not under atmospheric pressure but under a pressure of 120 KPa.
  • Comparative Examples 1 to 3 each metal of the raw material has a composition as shown in Table 1, classification is not performed after drying the precursor, and the final oxide is crushed so that the median diameter is 1 ⁇ m or less or 20 ⁇ m or more. The same processing as in Examples 1 to 15 was performed, except that the above processing was performed.
  • Comparative Examples 4 to 7 As Comparative Examples 4 to 7, the same processing as in Comparative Example 1 was performed, except that each metal of the raw material had the composition shown in Table 1 and the firing process was performed in an air atmosphere furnace instead of an oxygen atmosphere furnace.
  • Each positive electrode material, conductive material, and binder are weighed in a ratio of 85: 8: 7, and the positive electrode material and the conductive material are mixed into a slurry in which the binder is dissolved in an organic solvent (N-methylpyrrolidone). And coated on an Al foil, dried and pressed to obtain a positive electrode. Subsequently, a 2032 type coin cell for evaluation with Li as the counter electrode was prepared, and 1M-LiPF 6 dissolved in EC-DMC (1: 1) was used as the electrolyte, and the current density was 0.2C. The discharge capacity was measured.

Abstract

L'invention concerne un matériau actif d'électrode positive pour des batteries au lithium-ion représenté par la formule de composition Li(LixNi1-x-yMy)O2+α (dans la formule, M est Co (en tant que composant essentiel) et un ou plusieurs éléments choisis parmi Sc, Ti, V, Cr, Mn, Fe, Cu, Zn, Ga, Ge, Al, Bi, Sn, Mg, Ca, B et Zr, avec 0 ≤ x ≤ 0,1, 0 < y ≤ 0,7 et α > 0), et a un diamètre médian de la distribution de dimensions de particules de 1-20 µm et un angle de repos de 80° ou moins.
PCT/JP2011/066727 2010-12-03 2011-07-22 Matériau actif d'électrode positive pour une batterie au lithium-ion, électrode positive pour une batterie au lithium-ion, et batterie au lithium-ion WO2012073551A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2012546714A JP5973352B2 (ja) 2010-12-03 2011-07-22 リチウムイオン電池用正極活物質、リチウムイオン電池用正極、及び、リチウムイオン電池

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2010270586 2010-12-03
JP2010-270586 2010-12-03

Publications (1)

Publication Number Publication Date
WO2012073551A1 true WO2012073551A1 (fr) 2012-06-07

Family

ID=46171507

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2011/066727 WO2012073551A1 (fr) 2010-12-03 2011-07-22 Matériau actif d'électrode positive pour une batterie au lithium-ion, électrode positive pour une batterie au lithium-ion, et batterie au lithium-ion

Country Status (3)

Country Link
JP (1) JP5973352B2 (fr)
TW (1) TWI520423B (fr)
WO (1) WO2012073551A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2021095305A (ja) * 2019-12-17 2021-06-24 住友化学株式会社 リチウム金属複合酸化物粉末、リチウム二次電池用正極活物質、リチウム二次電池用正極及びリチウム二次電池

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006054159A (ja) * 2004-07-15 2006-02-23 Sumitomo Metal Mining Co Ltd 非水系二次電池用正極活物質およびその製造方法
JP2006127955A (ja) * 2004-10-29 2006-05-18 Sumitomo Metal Mining Co Ltd 非水系二次電池用正極活物質およびその製造方法
JP2007257890A (ja) * 2006-03-20 2007-10-04 Nissan Motor Co Ltd 非水電解質リチウムイオン電池用正極材料およびこれを用いた電池
WO2007142275A1 (fr) * 2006-06-09 2007-12-13 Agc Seimi Chemical Co., Ltd. Matériau actif d'électrode positive pour batterie rechargeable à électrolyte non aqueux et son procédé de fabrication
JP2009245955A (ja) * 2005-02-08 2009-10-22 Mitsubishi Chemicals Corp リチウム二次電池正極材料用リチウムニッケルマンガン系複合酸化物粉体及びその製造方法、並びにそれを用いたリチウム二次電池用正極及びリチウム二次電池

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4211865B2 (ja) * 2006-12-06 2009-01-21 戸田工業株式会社 非水電解質二次電池用Ｌｉ−Ｎｉ複合酸化物粒子粉末及びその製造方法、並びに非水電解質二次電池
WO2009099158A1 (fr) * 2008-02-06 2009-08-13 Agc Seimi Chemical Co., Ltd. Procédé pour produire une poudre granulaire pour un matériau actif d'électrode positive de batterie secondaire lithium-ion

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006054159A (ja) * 2004-07-15 2006-02-23 Sumitomo Metal Mining Co Ltd 非水系二次電池用正極活物質およびその製造方法
JP2006127955A (ja) * 2004-10-29 2006-05-18 Sumitomo Metal Mining Co Ltd 非水系二次電池用正極活物質およびその製造方法
JP2009245955A (ja) * 2005-02-08 2009-10-22 Mitsubishi Chemicals Corp リチウム二次電池正極材料用リチウムニッケルマンガン系複合酸化物粉体及びその製造方法、並びにそれを用いたリチウム二次電池用正極及びリチウム二次電池
JP2007257890A (ja) * 2006-03-20 2007-10-04 Nissan Motor Co Ltd 非水電解質リチウムイオン電池用正極材料およびこれを用いた電池
WO2007142275A1 (fr) * 2006-06-09 2007-12-13 Agc Seimi Chemical Co., Ltd. Matériau actif d'électrode positive pour batterie rechargeable à électrolyte non aqueux et son procédé de fabrication

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2021095305A (ja) * 2019-12-17 2021-06-24 住友化学株式会社 リチウム金属複合酸化物粉末、リチウム二次電池用正極活物質、リチウム二次電池用正極及びリチウム二次電池
WO2021125271A1 (fr) * 2019-12-17 2021-06-24 住友化学株式会社 Poudre d'oxyde composite de lithium-métal, matériau actif d'électrode positive pour batteries rechargeables au lithium, électrode positive pour batteries rechargeables au lithium, et batterie rechargeable au lithium

Also Published As

Publication number Publication date
JP5973352B2 (ja) 2016-08-23
JPWO2012073551A1 (ja) 2014-05-19
TW201228084A (en) 2012-07-01
TWI520423B (zh) 2016-02-01

Similar Documents

Publication Publication Date Title
US10122012B2 (en) Positive electrode active material for lithium-ion battery, a positive electrode for lithium-ion battery, and lithium-ion battery
JP5819200B2 (ja) リチウムイオン電池用正極活物質、リチウムイオン電池用正極、及び、リチウムイオン電池
TWI453981B (zh) A lithium ion battery positive electrode active material, positive electrode for a lithium ion battery, and a lithium ion battery
JP5963745B2 (ja) リチウムイオン電池用正極活物質、リチウムイオン電池用正極、及び、リチウムイオン電池
JP5985818B2 (ja) リチウムイオン電池用正極活物質、リチウムイオン電池用正極、及び、リチウムイオン電池
WO2013111379A1 (fr) Matière active d&#39;électrode positive ainsi qu&#39;électrode positive pour batterie au lithium-ion, et batterie au lithium-ion
WO2013111378A1 (fr) Matière active d&#39;électrode positive ainsi qu&#39;électrode positive pour batterie au lithium-ion, et batterie au lithium-ion
JP6026404B2 (ja) リチウムイオン電池用正極活物質、リチウムイオン電池用正極、及び、リチウムイオン電池
JP6030546B2 (ja) リチウムイオン電池用正極活物質、リチウムイオン電池用正極、及び、リチウムイオン電池
JP5805104B2 (ja) リチウムイオン電池用正極活物質、リチウムイオン電池用正極、及び、リチウムイオン電池
JP6243600B2 (ja) リチウムイオン電池用正極活物質、リチウムイオン電池用正極、及び、リチウムイオン電池
JP5973352B2 (ja) リチウムイオン電池用正極活物質、リチウムイオン電池用正極、及び、リチウムイオン電池
JP5985819B2 (ja) リチウムイオン電池用正極活物質、リチウムイオン電池用正極、及び、リチウムイオン電池
TWI469934B (zh) A positive electrode active material for a lithium ion battery, a positive electrode for a lithium ion battery, and a lithium ion battery
TWI460912B (zh) A positive electrode active material for a lithium ion battery, a positive electrode for a lithium ion battery, and a lithium ion battery

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 11844933

Country of ref document: EP

Kind code of ref document: A1

ENP Entry into the national phase

Ref document number: 2012546714

Country of ref document: JP

Kind code of ref document: A

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 11844933

Country of ref document: EP

Kind code of ref document: A1