JP4798964B2 - 非水電解質二次電池 - Google Patents
非水電解質二次電池 Download PDFInfo
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- JP4798964B2 JP4798964B2 JP2004158781A JP2004158781A JP4798964B2 JP 4798964 B2 JP4798964 B2 JP 4798964B2 JP 2004158781 A JP2004158781 A JP 2004158781A JP 2004158781 A JP2004158781 A JP 2004158781A JP 4798964 B2 JP4798964 B2 JP 4798964B2
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- 239000011255 nonaqueous electrolyte Substances 0.000 title claims description 19
- 229910052723 transition metal Inorganic materials 0.000 claims description 54
- 229910052744 lithium Inorganic materials 0.000 claims description 51
- 239000002905 metal composite material Substances 0.000 claims description 44
- -1 lithium transition metal Chemical class 0.000 claims description 42
- 229910018072 Al 2 O 3 Inorganic materials 0.000 claims description 36
- 239000007774 positive electrode material Substances 0.000 claims description 19
- 239000002245 particle Substances 0.000 claims description 17
- 150000003624 transition metals Chemical class 0.000 claims description 10
- 239000002131 composite material Substances 0.000 claims description 9
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 claims description 8
- KLARSDUHONHPRF-UHFFFAOYSA-N [Li].[Mn] Chemical compound [Li].[Mn] KLARSDUHONHPRF-UHFFFAOYSA-N 0.000 claims description 8
- 239000011572 manganese Substances 0.000 claims description 8
- 229910052759 nickel Inorganic materials 0.000 claims description 6
- 229910052748 manganese Inorganic materials 0.000 claims description 5
- 229910052596 spinel Inorganic materials 0.000 claims description 5
- 239000011029 spinel Substances 0.000 claims description 5
- 229910052782 aluminium Inorganic materials 0.000 claims description 4
- 229910052731 fluorine Inorganic materials 0.000 claims description 4
- 239000007773 negative electrode material Substances 0.000 claims description 4
- 229910052796 boron Inorganic materials 0.000 claims description 3
- 229910052804 chromium Inorganic materials 0.000 claims description 3
- 229910052802 copper Inorganic materials 0.000 claims description 3
- 229910052742 iron Inorganic materials 0.000 claims description 3
- 229910052749 magnesium Inorganic materials 0.000 claims description 3
- 229910052758 niobium Inorganic materials 0.000 claims description 3
- 229910052719 titanium Inorganic materials 0.000 claims description 3
- 229910052720 vanadium Inorganic materials 0.000 claims description 3
- 229910052725 zinc Inorganic materials 0.000 claims description 3
- 229910052726 zirconium Inorganic materials 0.000 claims description 3
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 claims description 2
- 229910001416 lithium ion Inorganic materials 0.000 claims description 2
- 229910052718 tin Inorganic materials 0.000 claims description 2
- 230000007704 transition Effects 0.000 claims 1
- 239000010419 fine particle Substances 0.000 description 20
- 239000011248 coating agent Substances 0.000 description 9
- 238000000576 coating method Methods 0.000 description 9
- 239000008151 electrolyte solution Substances 0.000 description 8
- 239000003513 alkali Substances 0.000 description 7
- 230000000052 comparative effect Effects 0.000 description 7
- 239000003792 electrolyte Substances 0.000 description 6
- 238000002156 mixing Methods 0.000 description 6
- 239000000203 mixture Substances 0.000 description 5
- 239000011149 active material Substances 0.000 description 4
- 239000011230 binding agent Substances 0.000 description 4
- 230000007423 decrease Effects 0.000 description 4
- 230000006866 deterioration Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- OIFBSDVPJOWBCH-UHFFFAOYSA-N Diethyl carbonate Chemical compound CCOC(=O)OCC OIFBSDVPJOWBCH-UHFFFAOYSA-N 0.000 description 3
- KMTRUDSVKNLOMY-UHFFFAOYSA-N Ethylene carbonate Chemical compound O=C1OCCO1 KMTRUDSVKNLOMY-UHFFFAOYSA-N 0.000 description 3
- 229910016476 Ni0.4Co0.3Mn0.3 Inorganic materials 0.000 description 3
- 239000003575 carbonaceous material Substances 0.000 description 3
- 150000005676 cyclic carbonates Chemical class 0.000 description 3
- 238000007599 discharging Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000005259 measurement Methods 0.000 description 3
- 238000002360 preparation method Methods 0.000 description 3
- XTHFKEDIFFGKHM-UHFFFAOYSA-N Dimethoxyethane Chemical compound COCCOC XTHFKEDIFFGKHM-UHFFFAOYSA-N 0.000 description 2
- 229910012529 LiNi0.4Co0.3Mn0.3O2 Inorganic materials 0.000 description 2
- 229910013870 LiPF 6 Inorganic materials 0.000 description 2
- WMFOQBRAJBCJND-UHFFFAOYSA-M Lithium hydroxide Chemical compound [Li+].[OH-] WMFOQBRAJBCJND-UHFFFAOYSA-M 0.000 description 2
- SECXISVLQFMRJM-UHFFFAOYSA-N N-Methylpyrrolidone Chemical compound CN1CCCC1=O SECXISVLQFMRJM-UHFFFAOYSA-N 0.000 description 2
- 239000007864 aqueous solution Substances 0.000 description 2
- 150000005678 chain carbonates Chemical class 0.000 description 2
- 239000006258 conductive agent Substances 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 239000011267 electrode slurry Substances 0.000 description 2
- 239000012046 mixed solvent Substances 0.000 description 2
- 239000011164 primary particle Substances 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 239000002002 slurry Substances 0.000 description 2
- 239000002904 solvent Substances 0.000 description 2
- 239000002562 thickening agent Substances 0.000 description 2
- ZZXUZKXVROWEIF-UHFFFAOYSA-N 1,2-butylene carbonate Chemical compound CCC1COC(=O)O1 ZZXUZKXVROWEIF-UHFFFAOYSA-N 0.000 description 1
- LZDKZFUFMNSQCJ-UHFFFAOYSA-N 1,2-diethoxyethane Chemical compound CCOCCOCC LZDKZFUFMNSQCJ-UHFFFAOYSA-N 0.000 description 1
- VAYTZRYEBVHVLE-UHFFFAOYSA-N 1,3-dioxol-2-one Chemical compound O=C1OC=CO1 VAYTZRYEBVHVLE-UHFFFAOYSA-N 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 229920002134 Carboxymethyl cellulose Polymers 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910009615 Li1.1Al0.1Mn1.8O4 Inorganic materials 0.000 description 1
- 229910015015 LiAsF 6 Inorganic materials 0.000 description 1
- 229910013063 LiBF 4 Inorganic materials 0.000 description 1
- 229910013684 LiClO 4 Inorganic materials 0.000 description 1
- 239000002033 PVDF binder Substances 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 239000012300 argon atmosphere Substances 0.000 description 1
- 239000012298 atmosphere Substances 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 239000001768 carboxy methyl cellulose Substances 0.000 description 1
- 235000010948 carboxy methyl cellulose Nutrition 0.000 description 1
- 239000008112 carboxymethyl-cellulose Substances 0.000 description 1
- 239000006182 cathode active material Substances 0.000 description 1
- 239000011889 copper foil Substances 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- IEJIGPNLZYLLBP-UHFFFAOYSA-N dimethyl carbonate Chemical compound COC(=O)OC IEJIGPNLZYLLBP-UHFFFAOYSA-N 0.000 description 1
- 239000004210 ether based solvent Substances 0.000 description 1
- JBTWLSYIZRCDFO-UHFFFAOYSA-N ethyl methyl carbonate Chemical compound CCOC(=O)OC JBTWLSYIZRCDFO-UHFFFAOYSA-N 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 239000011737 fluorine Substances 0.000 description 1
- 125000001153 fluoro group Chemical group F* 0.000 description 1
- 239000011888 foil Substances 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 239000007770 graphite material Substances 0.000 description 1
- 238000004898 kneading Methods 0.000 description 1
- ACFSQHQYDZIPRL-UHFFFAOYSA-N lithium;bis(1,1,2,2,2-pentafluoroethylsulfonyl)azanide Chemical compound [Li+].FC(F)(F)C(F)(F)S(=O)(=O)[N-]S(=O)(=O)C(F)(F)C(F)(F)F ACFSQHQYDZIPRL-UHFFFAOYSA-N 0.000 description 1
- 239000011859 microparticle Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006864 oxidative decomposition reaction Methods 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920002981 polyvinylidene fluoride Polymers 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- RUOJZAUFBMNUDX-UHFFFAOYSA-N propylene carbonate Chemical compound CC1COC(=O)O1 RUOJZAUFBMNUDX-UHFFFAOYSA-N 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000011163 secondary particle Substances 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 238000007086 side reaction Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 230000001629 suppression Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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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
- 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
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/058—Construction or manufacture
- H01M10/0587—Construction or manufacture of accumulators having only wound construction elements, i.e. wound positive electrodes, wound negative electrodes and wound separators
-
- 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
- H01M4/36—Selection of substances as active materials, active masses, active liquids
- H01M4/362—Composites
- H01M4/366—Composites as layered products
-
- 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
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- 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
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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
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- H01M4/36—Selection of substances as active materials, active masses, active liquids
- H01M4/58—Selection of substances as active materials, active masses, active liquids of inorganic compounds other than oxides or hydroxides, e.g. sulfides, selenides, tellurides, halogenides or LiCoFy; of polyanionic structures, e.g. phosphates, silicates or borates
- H01M4/583—Carbonaceous material, e.g. graphite-intercalation compounds or CFx
- H01M4/587—Carbonaceous material, e.g. graphite-intercalation compounds or CFx for inserting or intercalating light metals
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Description
〔Al2O3の微粒子で被覆したリチウム遷移金属複合酸化物の作製〕
平均二次粒子径10μmのLiNi0.4Co0.3Mn0.3O2:150gと、平均粒子径0.1μmのAl2O3:0.80g(遷移金属Ni0.4Co0.3Mn0.3に対して0.5モル%)とをホソカワミクロン(株)製メカノフュージョンAM−20FSに充填し、1500rpmで5分間混合した。混合後の粉末状態を走査型電子顕微鏡(SEM)で観察した結果、一次粒子径約1μmのリチウム遷移金属複合酸化物の表面に、Al2O3の微粒子が均一に付着していることを確認した。
上記のように作製した、Al2O3の微粒子で表面を被覆したリチウム遷移金属複合酸化物と、スピネル構造を有するリチウムマンガン複合酸化物(Li1.1Al0.1Mn1.8O4)とを重量比(リチウム遷移金属複合酸化物:リチウムマンガン複合酸化物)で7:3となるように混合して、この混合物を正極活物質として用いた。この混合物(正極活物質)と、導電剤としての炭素材料と、結着剤としてのポリフッ化ビニリデンを溶解したN−メチル−2−ピロリドン溶液を、活物質と導電剤と結着剤の重量比が90:5:5となるように混合して正極スラリーを作製した。作製したスラリーを集電体としてのアルミニウム箔上に塗布した後、乾燥し、その後圧延ローラーを用いて圧延し、集電体タブを取り付けることにより正極を作製した。
負極活物質としての黒鉛と、結着剤としてのSBRと、増粘剤としてのカルボキシメチルセルロースを溶かした水溶液を、活物質と結着剤と増粘剤の重量比が98:1:1になるように混練して負極スラリーを作製した。作製したスラリーを集電体としての銅箔上に塗布した後、乾燥し、その後圧延ローラーを用いて圧延し、集電タブを取り付けて負極を作製した。
エチレンカーボネート(EC)と、ジエチルカーボネート(DEC)とを体積比3:7で混合した溶媒に、溶質としてのLiPF6を1モル/リットルとなるように溶解し、電解液を作製した。
上記で作製した正極を作用極として用い、対極及び参照極としてリチウム金属を用い、図1に示す三電極式ビーカーセルA1を作製した。図1に示すように、ビーカーセルの容器中には電解液4が入れられており、この電解液4に、作用極1、対極2、及び参照極3が浸漬されている。また、電解液4としては、上記で作製した電解液を用いている。
上記で作製した正極及び負極を、ポリエチレン製のセパレータを介して対向するように巻取って巻取り体を作製し、アルゴン雰囲気下のグローボックス中にて、この巻取り体を電解液とともに電池缶に封入することにより、定格容量1.4Ahの円筒型18650サイズの非水電解質二次電池A2を作製した。
実施例1において、Al2O3の微粒子で表面が被覆されたリチウム遷移金属複合酸化物に代えて、Al2O3の微粒子で表面を被覆していない、すなわちAl2O3の微粒子と混合処理していないリチウム遷移金属複合酸化物(LiNi0.4Co0.3Mn0.3O2)を用いる以外は、実施例1と同様にして、三電極式ビーカーセルB1と、定格容量1.4Ahの円筒型18650サイズの非水電解質二次電池B2を作製した。
実施例1において、Al2O3の微粒子との混合処理に代えて、リチウム遷移金属複合酸化物の原料とAl2O3の微粒子とを混合し、この混合物を焼成してリチウム遷移金属複合酸化物を作製した。具体的には、Li2CO3と、(Ni0.4Co0.3Mn0.3)3O4と、Al2O3とを混合し、この混合物を空気雰囲気中で900℃で20時間焼成することによりリチウム遷移金属複合酸化物を作製した。Al2O3の含有量は、遷移金属Ni0.4Co0.3Mn0.3に対し0.5モル%である。このリチウム遷移金属複合酸化物を用いる以外は、実施例1と同様にして正極を作製し、この正極を作用極として用いる以外は、実施例1と同様にして三電極式ビーカーセルC1を作製した。
三電極式ビーカーセルA1、B1及びC1について、放電容量を測定した。放電容量の測定は、9.3mAと3.1mAの2段階充電で4.3Vまで充電した後、放電終止電圧を3.1Vに設定し、9.3mAで3.1Vまで放電したときの容量を測定し、これを放電容量とした。測定結果を表1に示す。
電池A2及びB2について、定格容量を測定した。電池の定格容量は、1400mAの定電流−定電圧(70mAカット)で4.2Vまで充電した後、放電終止電圧を3.0Vに設定し、470mAで3.0Vまで放電したときの電池容量を定格容量とした。
電池A2及びB2について、サイクル特性試験を行った。サイクル特性試験は、10W の定電力で充電終止電圧を4.2V、放電終止電圧を2.4Vとして100サイクルの充放電を行った。雰囲気温度は45℃とし、100サイクル後の定格容量を測定し、容量劣化率を算出した。容量劣化率を表2に示す。
2…対極(リチウム金属)
3…参照極(リチウム金属)
4…電解液
Claims (3)
- リチウムの吸蔵・放出が可能な正極活物質を含む正極と、リチウムの吸蔵・放出が可能な負極活物質を含む負極と、リチウムイオン伝導性を有する非水電解液とを備えた非水電解質二次電池において、前記正極活物質として、平均粒子径が0.3μm以下のAl2O3 の粒子で物理的に表面が被覆された、層状構造を有する遷移金属として少なくともNiとMnを含むリチウム遷移金属複合酸化物を用いることを特徴とする非水電解質二次電池。
- 前記正極活物質として、平均粒子径が0.3μm以下のAl 2 O 3 の粒子で物理的に表面が被覆された前記リチウム遷移金属複合酸化物と、スピネル構造を有するリチウムマンガン複合酸化物とを混合して用いることを特徴とする請求項1に記載の非水電解質二次電池。
- 前記リチウム遷移金属複合酸化物が、一般式Li〔Li a Mn x Ni y Co z M b 〕O 2 (MはB,F,Mg,Al,Ti,Cr,V,Fe,Cu,Zn,Nb,Zr,及びSnから選択される少なくとも1種類の元素であり、a,b,x,y及びzは、a+b+x+y+z=1、0≦b≦0.1、0≦x≦0.5、0≦y≦0.5、z≧0を満足する。)で表わされることを特徴とする請求項1または2に記載の非水電解質二次電池。
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JP2004158781A JP4798964B2 (ja) | 2004-05-28 | 2004-05-28 | 非水電解質二次電池 |
US11/138,272 US20050266316A1 (en) | 2004-05-28 | 2005-05-27 | Non-aqueous electrolyte secondary battery |
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JP2004158781A JP4798964B2 (ja) | 2004-05-28 | 2004-05-28 | 非水電解質二次電池 |
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US7381496B2 (en) * | 2004-05-21 | 2008-06-03 | Tiax Llc | Lithium metal oxide materials and methods of synthesis and use |
US9240593B2 (en) | 2005-04-28 | 2016-01-19 | Sumitomo Chemical Company, Limited | Active material for nonaqueous secondary battery and method for producing same |
JP5153135B2 (ja) * | 2006-03-09 | 2013-02-27 | 三洋電機株式会社 | 非水電解質二次電池 |
JP4586991B2 (ja) * | 2006-03-24 | 2010-11-24 | ソニー株式会社 | 正極活物質およびその製造方法、並びに二次電池 |
JP2008041502A (ja) * | 2006-08-08 | 2008-02-21 | Sony Corp | 非水電解質二次電池用正極、その製造方法及び非水電解質二次電池 |
JP5079291B2 (ja) * | 2006-09-21 | 2012-11-21 | パナソニック株式会社 | 非水電解質二次電池 |
JP2008135379A (ja) * | 2006-10-25 | 2008-06-12 | Sumitomo Chemical Co Ltd | リチウム二次電池 |
US20100047691A1 (en) * | 2006-10-25 | 2010-02-25 | Sumitomo Chemical Company, Limited | Lithium secondary battery |
JP4337875B2 (ja) | 2006-12-29 | 2009-09-30 | ソニー株式会社 | 正極合剤、ならびに非水電解質二次電池およびその製造方法 |
EP2028704A1 (en) * | 2007-07-11 | 2009-02-25 | Toda Kogyo Corporation | Process for producing composite cathode active material for non-aqueous electrolyte secondary cell |
JP5023912B2 (ja) * | 2007-09-19 | 2012-09-12 | トヨタ自動車株式会社 | 正極活物質の製造方法 |
US20090087731A1 (en) * | 2007-09-27 | 2009-04-02 | Atsushi Fukui | Lithium secondary battery |
JP5213103B2 (ja) * | 2007-12-19 | 2013-06-19 | 日立マクセル株式会社 | 非水電解質二次電池用正極、非水電解質二次電池および電子機器 |
JP2011034943A (ja) * | 2009-03-16 | 2011-02-17 | Sanyo Electric Co Ltd | 非水電解液二次電池 |
KR101356970B1 (ko) | 2009-05-22 | 2014-02-03 | 샤프 가부시키가이샤 | 정극 활물질, 정극 및 비수 이차 전지 |
US9373844B2 (en) | 2010-07-01 | 2016-06-21 | Sharp Kabushiki Kaisha | Positive electrode active substance containing lithium-containing metal oxide |
JP5132727B2 (ja) | 2010-07-12 | 2013-01-30 | シャープ株式会社 | 正極活物質、正極及び非水電解質二次電池 |
US10476100B2 (en) * | 2010-10-04 | 2019-11-12 | Ford Global Technologies, Llc | Lithium-containing electrode material for electrochemical cell systems |
JP2012142155A (ja) * | 2010-12-28 | 2012-07-26 | Sony Corp | リチウム二次電池、正極活物質、正極、電動工具、電動車両および電力貯蔵システム |
CN106159255A (zh) | 2011-04-14 | 2016-11-23 | 户田工业株式会社 | Li‑Ni复合氧化物颗粒粉末以及非水电解质二次电池 |
TWI600202B (zh) * | 2014-03-06 | 2017-09-21 | 烏明克公司 | 用於在汽車應用中的電池組之摻雜並且塗覆的鋰過渡金屬氧化物陰極材料 |
JP6050403B2 (ja) * | 2015-03-02 | 2016-12-21 | Jx金属株式会社 | 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 |
WO2021125286A1 (ja) * | 2019-12-17 | 2021-06-24 | Apb株式会社 | リチウムイオン電池用被覆正極活物質粒子、リチウムイオン電池用正極及びリチウムイオン電池用被覆正極活物質粒子の製造方法 |
JP2023152003A (ja) * | 2022-04-01 | 2023-10-16 | 住友金属鉱山株式会社 | リチウムイオン二次電池用正極活物質、リチウムイオン二次電池用正極活物質の製造方法 |
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CN1134851C (zh) * | 1996-07-22 | 2004-01-14 | 日本电池株式会社 | 锂电池用正极 |
JP2000251892A (ja) * | 1999-03-02 | 2000-09-14 | Toyota Central Res & Dev Lab Inc | リチウム二次電池用正極活物質およびこれを用いたリチウム二次電池 |
JP2001143703A (ja) * | 1999-11-11 | 2001-05-25 | Nichia Chem Ind Ltd | リチウム二次電池用正極活物質 |
US6737195B2 (en) * | 2000-03-13 | 2004-05-18 | Samsung Sdi Co., Ltd. | Positive active material for rechargeable lithium battery and method of preparing same |
JP4973825B2 (ja) * | 2000-11-14 | 2012-07-11 | 戸田工業株式会社 | 非水電解質二次電池用正極活物質の製造法、非水電解質二次電池 |
US6753112B2 (en) * | 2000-12-27 | 2004-06-22 | Kabushiki Kaisha Toshiba | Positive electrode active material and non-aqueous secondary battery using the same |
JP3631197B2 (ja) * | 2001-11-30 | 2005-03-23 | 三洋電機株式会社 | 非水電解質二次電池 |
JP2003257427A (ja) * | 2002-02-28 | 2003-09-12 | Sumitomo Chem Co Ltd | 非水二次電池用電極材料 |
JP2004175609A (ja) * | 2002-11-26 | 2004-06-24 | Ind Technol Res Inst | リチウムイオン電池の正極に用いるコバルト酸リチウム、その製造方法およびリチウムイオン電池 |
JP4061586B2 (ja) * | 2003-04-11 | 2008-03-19 | ソニー株式会社 | 非水電解質二次電池用正極活物質及びそれを用いた非水電解質二次電池 |
JP2005276454A (ja) * | 2004-03-23 | 2005-10-06 | Sumitomo Metal Mining Co Ltd | 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 |
JP4794866B2 (ja) * | 2004-04-08 | 2011-10-19 | パナソニック株式会社 | 非水電解質二次電池用正極活物質およびその製造方法ならびにそれを用いた非水電解質二次電池 |
-
2004
- 2004-05-28 JP JP2004158781A patent/JP4798964B2/ja not_active Expired - Fee Related
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