WO2011108652A1 - Matériau actif d'électrode positive pour batterie au lithium-ion, électrode positive pour batterie au lithium-ion, et batterie au lithium-ion - Google Patents

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

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Publication number
WO2011108652A1
WO2011108652A1 PCT/JP2011/054933 JP2011054933W WO2011108652A1 WO 2011108652 A1 WO2011108652 A1 WO 2011108652A1 JP 2011054933 W JP2011054933 W JP 2011054933W WO 2011108652 A1 WO2011108652 A1 WO 2011108652A1
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WO
WIPO (PCT)
Prior art keywords
positive electrode
lithium ion
ion battery
active material
electrode active
Prior art date
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PCT/JP2011/054933
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English (en)
Japanese (ja)
Inventor
博人 佐藤
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.)
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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 JP2012503251A priority Critical patent/JPWO2011108652A1/ja
Publication of WO2011108652A1 publication Critical patent/WO2011108652A1/fr

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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
    • 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
    • H01M4/13—Electrodes for accumulators with non-aqueous electrolyte, e.g. for lithium-accumulators; Processes of manufacture thereof
    • H01M4/131—Electrodes based on mixed oxides or hydroxides, or on mixtures of oxides or hydroxides, e.g. LiCoOx
    • 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
    • H01M2004/021—Physical characteristics, e.g. porosity, surface area
    • 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 positive electrode active material for a lithium ion battery according to the present invention has a T1 of 220 ° C. or higher.
  • 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.
  • 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.
  • T2 ⁇ T1 between the first exothermic peak temperature T1 (° C.) obtained by differential scanning calorimetry (DSC) performed in step 1 and a temperature T2 (° C.) that is 1 ⁇ 2 of the first exothermic peak intensity. Satisfies ⁇ T ⁇ 10 (° C.). Further, ⁇ T ⁇ 12 (° C.) is preferable, and ⁇ T ⁇ 14 (° C.) is more preferable.
  • the first exothermic peak temperature T1 (° C.) is preferably 220 ° C. or higher.
  • 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 heat treatment, such as nitrate or acetate, it can be used as a calcining precursor without being washed, filtered off as it is, and dried. Next, the lithium-containing carbonate separated by filtration is dried to obtain a powder of a lithium salt composite (a precursor for a lithium ion battery positive electrode active material).
  • a lithium salt composite a precursor for a lithium ion battery positive electrode active material
  • a firing container having a predetermined capacity is prepared, and this firing container is filled with a precursor powder for a lithium ion battery positive electrode active material.
  • the firing container filled with the precursor powder for the lithium ion battery positive electrode active 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 firing temperature is appropriately set according to the amount of Li in the positive electrode active material precursor used as a raw material. Specifically, since sintering is likely to proceed when the amount of Li is large, the optimum value of the firing temperature is shifted to a lower side than when Li is small.
  • Examples 1 to 6 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.
  • the suspended amount of lithium carbonate was such that the product (lithium ion secondary battery positive electrode material, ie, positive electrode active material) was Li x (Ni y M 1-y ) O z and x was the value shown in Table 1. Are respectively calculated by the following equations.
  • W (g) 73.9 ⁇ 14 ⁇ (1 + 0.5X) ⁇ 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.

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Inorganic Chemistry (AREA)
  • Battery Electrode And Active Subsutance (AREA)
  • Inorganic Compounds Of Heavy Metals (AREA)

Abstract

La présente invention concerne un matériau actif d'électrode positive pour une batterie au lithium-ion, grâce auquel il est possible de proposer une batterie au lithium-ion qui offre une sécurité remarquable. Le matériau actif d'électrode positive pour batterie au lithium-ion possède une structure stratifiée représentée par la formule de composition : Lix(NiyM1-y)Oz (dans la formule, M est Mn et Co, x se trouve dans la plage allant de 0,9 à 1,2, y se trouve dans la plage allant de 0,7 à 0,75, et z se trouve dans la plage allant de 1,8 à 2,4). Après qu'une batterie au lithium-ion obtenue en utilisant un mélange d'électrode positive préparé en utilisant 91 % en poids de matériau actif d'électrode positive, 4,2 % en poids de liant et 4,8 % de matériau conducteur est chargée jusqu'à ce que la tension atteigne 4,3 V, la différence Δ T = T1 - T2 (T2 < T1) décrite ci-dessous satisfait ΔT ≥ 10 (°C). T1 est une première température maximum exothermique (°C) obtenue par calorimétrie à balayage différentiel (« differential scanning calorimetry » ou DSC) à un taux d'augmentation de température de 5 °C/minute de 1,0 mg de mélange d'électrode positive conjointement avec un électrolyte obtenu en dissolvant 1M-LiPF6 dans un solvant mélangé de carbonate d'éthylène (EC) - carbonate de diméthyle (DMC) (rapport volumique 1 : 1), et T2 est une température (°C) à la moitié de la première intensité maximum exothermique.
PCT/JP2011/054933 2010-03-04 2011-03-03 Matériau actif d'électrode positive pour batterie au lithium-ion, électrode positive pour batterie au lithium-ion, et batterie au lithium-ion WO2011108652A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2012503251A JPWO2011108652A1 (ja) 2010-03-04 2011-03-03 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
JP2010-048068 2010-03-04
JP2010048068 2010-03-04

Publications (1)

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WO2011108652A1 true WO2011108652A1 (fr) 2011-09-09

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JP (1) JPWO2011108652A1 (fr)
TW (1) TWI424607B (fr)
WO (1) WO2011108652A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2021042990A1 (fr) * 2019-09-02 2021-03-11 宁德时代新能源科技股份有限公司 Matériau actif d'électrode positive, son procédé de préparation, feuille d'électrode positive, batterie secondaire au lithium-ion et module de batterie associé, bloc-batterie et dispositif associé

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH11307094A (ja) * 1998-04-20 1999-11-05 Chuo Denki Kogyo Co Ltd リチウム二次電池用正極活物質とリチウム二次電池
JP2002063901A (ja) * 2000-08-14 2002-02-28 Mitsui Chemicals Inc リチウム二次電池用正極活物質、その製法およびそれを用いた電池
JP2002164053A (ja) * 2000-09-25 2002-06-07 Samsung Sdi Co Ltd リチウム二次電池用正極活物質及びその製造方法
WO2002086993A1 (fr) * 2001-04-20 2002-10-31 Yuasa Corporation Matiere active anodique et son procede de production, anode pour pile secondaire a electrolyte non aqueux et pile secondaire a electrolyte non aqueux
JP2004227790A (ja) * 2003-01-20 2004-08-12 Nichia Chem Ind Ltd 非水電解液二次電池用正極活物質
JP2005302628A (ja) * 2004-04-15 2005-10-27 Toshiba Corp 非水電解質電池用正極活物質、正極及び非水電解質電池
JP2005332707A (ja) * 2004-05-20 2005-12-02 Toshiba Corp 非水電解質電池用正極及び非水電解質電池
JP2006156126A (ja) * 2004-11-29 2006-06-15 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

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002289261A (ja) * 2001-01-16 2002-10-04 Matsushita Electric Ind Co Ltd 非水電解質二次電池
JP2000149945A (ja) * 1998-11-10 2000-05-30 Hitachi Ltd リチウムイオン二次電池
KR100660759B1 (ko) * 2005-03-11 2006-12-22 제일모직주식회사 비수계 전해질 리튬 이차전지용 양극활물질, 그 제조방법및 그를 포함하는 리튬 이차전지

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH11307094A (ja) * 1998-04-20 1999-11-05 Chuo Denki Kogyo Co Ltd リチウム二次電池用正極活物質とリチウム二次電池
JP2002063901A (ja) * 2000-08-14 2002-02-28 Mitsui Chemicals Inc リチウム二次電池用正極活物質、その製法およびそれを用いた電池
JP2002164053A (ja) * 2000-09-25 2002-06-07 Samsung Sdi Co Ltd リチウム二次電池用正極活物質及びその製造方法
WO2002086993A1 (fr) * 2001-04-20 2002-10-31 Yuasa Corporation Matiere active anodique et son procede de production, anode pour pile secondaire a electrolyte non aqueux et pile secondaire a electrolyte non aqueux
JP2004227790A (ja) * 2003-01-20 2004-08-12 Nichia Chem Ind Ltd 非水電解液二次電池用正極活物質
JP2005302628A (ja) * 2004-04-15 2005-10-27 Toshiba Corp 非水電解質電池用正極活物質、正極及び非水電解質電池
JP2005332707A (ja) * 2004-05-20 2005-12-02 Toshiba Corp 非水電解質電池用正極及び非水電解質電池
JP2006156126A (ja) * 2004-11-29 2006-06-15 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

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2021042990A1 (fr) * 2019-09-02 2021-03-11 宁德时代新能源科技股份有限公司 Matériau actif d'électrode positive, son procédé de préparation, feuille d'électrode positive, batterie secondaire au lithium-ion et module de batterie associé, bloc-batterie et dispositif associé
US11613474B2 (en) 2019-09-02 2023-03-28 Contemporary Amperex Technology Co., Limited Positive electrode active material, method for preparation thereof, positive electrode plate, lithium-ion secondary battery and related battery module, battery pack and apparatus
US11760657B2 (en) 2019-09-02 2023-09-19 Contemporary Amperex Technology Co., Limited Positive electrode active material, method for preparation thereof, positive electrode plate, lithium-ion secondary battery and related battery module, battery pack and apparatus

Also Published As

Publication number Publication date
TWI424607B (zh) 2014-01-21
JPWO2011108652A1 (ja) 2013-06-27
TW201205944A (en) 2012-02-01

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