JP2019114561A - 正極活物質、その製造方法およびそれを含むリチウム二次電池 - Google Patents
正極活物質、その製造方法およびそれを含むリチウム二次電池 Download PDFInfo
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- C01G45/1221—Manganates or manganites with a manganese oxidation state of Mn(III), Mn(IV) or mixtures thereof
- C01G45/125—Manganates or manganites with a manganese oxidation state of Mn(III), Mn(IV) or mixtures thereof of the type[MnO3]n-, e.g. Li2MnO3, Li2[MxMn1-xO3], (La,Sr)MnO3
- C01G45/1257—Manganates or manganites with a manganese oxidation state of Mn(III), Mn(IV) or mixtures thereof of the type[MnO3]n-, e.g. Li2MnO3, Li2[MxMn1-xO3], (La,Sr)MnO3 containing lithium, e.g. Li2MnO3, Li2[MxMn1-xO3
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- 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
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- H01M4/139—Processes of manufacture
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- H—ELECTRICITY
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- 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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- H—ELECTRICITY
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- 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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- H01M4/62—Selection of inactive substances as ingredients for active masses, e.g. binders, fillers
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Abstract
Description
<実施例1>
<実施例2>
<実施例3>
Claims (15)
- 層状構造のLi2MnO3を含むリチウム過量のリチウム金属複合化合物からなり、
フルオロ化合物がドーピングされ、
FWHM(半値幅)値が0.164°〜0.185°の範囲内にある正極活物質。 - 前記リチウム金属複合化合物は、化学式Li1+αNixCoyMnzO2(ここで、0.1<α≦1、0<x+y+z≦1)で表される、請求項1に記載の正極活物質。
- 前記リチウム金属複合化合物は、菱面体晶LiMO2(ここで、MはNi、CoおよびMnからなる群から選択される1つ以上の金属)−単斜晶Li2MnO3の混合構造である、請求項1に記載の正極活物質。
- 前記リチウム金属複合化合物は、前記Li2MnO3を20%以上含む、請求項1に記載の正極活物質。
- 前記正極活物質は、c軸の長さが14.241オングストローム〜14.2429オングストロームの範囲内にある、請求項1に記載の正極活物質。
- 前記フルオロ化合物は、LiF、NaF、KF、MgF2、CaF2、CuF2、CdF2、FeF2、MnF2、MgF2、NiF2、PbF2、SnF2、SrF2、XeF2、ZnF2、AlF3、BF3、BiF3、CeF3、CrF3、FeF3、InF3、LaF3、MnF3、NdF3、VOF3、YF3、CeF4、GeF4、HfF4、SiF4、SnF4、TiF4、VF4、ZrF4、VF5、NbF5、SbF5、TaF5、BiF5、MoF6、ReF6、SF6、WF6、NH4Fまたはこれらの混合物からなる群から選択されるいずれか1つである、請求項1に記載の正極活物質。
- 前記フルオロ化合物は、0.02〜0.06molドーピングされる、請求項1に記載の正極活物質。
- 層状構造のLi2MnO3を含むリチウム過量のリチウム金属複合化合物からなり、FWHM(半値幅)値が0.164°〜0.185°の範囲内にある正極活物質の製造方法であって、
遷移金属化合物前駆体を合成するステップ;および
前記遷移金属化合物前駆体とリチウム供給源およびフルオロ化合物を混合した後に800℃以下で熱処理するステップ;
を含む正極活物質の製造方法。 - 前記リチウム金属複合化合物は、化学式Li1+αNixCoyMnzO2(ここで、0.1<α≦1、0<x+y+z≦1)で表される、請求項8に記載の正極活物質の製造方法。
- 前記熱処理は、700℃で行われる、請求項8に記載の正極活物質の製造方法。
- 前記正極活物質は、c軸の長さが14.241オングストローム〜14.2429オングストロームの範囲内にある、請求項8に記載の正極活物質の製造方法。
- 前記フルオロ化合物は、LiF、NaF、KF、MgF2、CaF2、CuF2、CdF2、FeF2、MnF2、MgF2、NiF2、PbF2、SnF2、SrF2、XeF2、ZnF2、AlF3、BF3、BiF3、CeF3、CrF3、FeF3、InF3、LaF3、MnF3、NdF3、VOF3、YF3、CeF4、GeF4、HfF4、SiF4、SnF4、TiF4、VF4、ZrF4、VF5、NbF5、SbF5、TaF5、BiF5、MoF6、ReF6、SF6、WF6、NH4Fまたはこれらの混合物からなる群から選択されるいずれか1つである、請求項8に記載の正極活物質の製造方法。
- 前記フルオロ化合物は、0.02〜0.06molドーピングされる、請求項8に記載の正極活物質の製造方法。
- 前記遷移金属化合物前駆体は、pH10〜12の範囲内で合成される、請求項8に記載の正極活物質の製造方法。
- 請求項1〜7のいずれか一項に記載の正極活物質を含む正極;
負極活物質を含む負極;および
前記正極と前記負極との間に存在する電解質;
を含むリチウム二次電池。
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KR10-2012-0133278 | 2012-11-22 | ||
KR1020120133278A KR20140066052A (ko) | 2012-11-22 | 2012-11-22 | 양극 활물질, 이의 제조방법 및 이를 포함하는 리튬 이차 전지 |
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JP2019073464A Pending JP2019114561A (ja) | 2012-11-22 | 2019-04-08 | 正極活物質、その製造方法およびそれを含むリチウム二次電池 |
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US (1) | US9908786B2 (ja) |
EP (1) | EP2736106A3 (ja) |
JP (2) | JP2014107269A (ja) |
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KR102152366B1 (ko) | 2013-12-30 | 2020-09-04 | 삼성에스디아이 주식회사 | 리튬 이차전지용 양극 활물질, 이의 제조 방법 및 이를 포함하는 리튬 이차전지 |
US9716265B2 (en) | 2014-08-01 | 2017-07-25 | Apple Inc. | High-density precursor for manufacture of composite metal oxide cathodes for Li-ion batteries |
DE102015211110A1 (de) | 2015-06-17 | 2016-12-22 | Robert Bosch Gmbh | Aktivmaterial für eine Kathode einer Batteriezelle, Kathode und Batteriezelle |
US10297821B2 (en) | 2015-09-30 | 2019-05-21 | Apple Inc. | Cathode-active materials, their precursors, and methods of forming |
JP6914483B2 (ja) * | 2015-12-15 | 2021-08-04 | 株式会社Gsユアサ | リチウム二次電池用正極活物質、前駆体の製造方法、リチウム二次電池用正極及びリチウム二次電池 |
CN114068898A (zh) | 2016-03-14 | 2022-02-18 | 苹果公司 | 用于锂离子电池的阴极活性材料 |
US10297823B2 (en) | 2016-09-20 | 2019-05-21 | Apple Inc. | Cathode active materials having improved particle morphologies |
CN109715562B (zh) | 2016-09-21 | 2022-03-11 | 苹果公司 | 用于锂离子电池的表面稳定阴极材料及其合成方法 |
DE102016223246A1 (de) * | 2016-11-24 | 2018-05-24 | Robert Bosch Gmbh | Aktivmaterial für eine positive Elektrode einer Batteriezelle, positive Elektrode und Batteriezelle |
WO2019244955A1 (ja) | 2018-06-21 | 2019-12-26 | 株式会社Gsユアサ | 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活物質の製造方法、非水電解質二次電池用正極、非水電解質二次電池、非水電解質二次電池の製造方法、及び非水電解質二次電池の使用方法 |
US11695108B2 (en) | 2018-08-02 | 2023-07-04 | Apple Inc. | Oxide mixture and complex oxide coatings for cathode materials |
US11749799B2 (en) | 2018-08-17 | 2023-09-05 | Apple Inc. | Coatings for cathode active materials |
KR102426254B1 (ko) * | 2019-03-28 | 2022-07-28 | 삼성에스디아이 주식회사 | 리튬 이차전지용 전해질 첨가제를 포함하는 리튬 이차전지 |
US12074321B2 (en) | 2019-08-21 | 2024-08-27 | Apple Inc. | Cathode active materials for lithium ion batteries |
US11757096B2 (en) | 2019-08-21 | 2023-09-12 | Apple Inc. | Aluminum-doped lithium cobalt manganese oxide batteries |
CN110642303A (zh) * | 2019-08-30 | 2020-01-03 | 广东新凌嘉新能源股份有限公司 | 一种改进的动力三元圆柱锂电池正极材料及其制备方法 |
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CN112271280B (zh) * | 2020-10-22 | 2023-01-13 | 欣旺达电动汽车电池有限公司 | 复合正极材料及其制备方法和锂离子电池 |
DE102022213054B3 (de) | 2022-12-05 | 2024-03-28 | Volkswagen Aktiengesellschaft | Kathodenmaterial, Verfahren zu dessen Herstellung und Verwendung des Kathodenmaterials |
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JP2012038562A (ja) * | 2010-08-06 | 2012-02-23 | Tdk Corp | 前駆体、活物質の製造方法及びリチウムイオン二次電池 |
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EP2736106A3 (en) | 2014-08-06 |
US20140141331A1 (en) | 2014-05-22 |
KR20140066052A (ko) | 2014-05-30 |
CN103840150A (zh) | 2014-06-04 |
US9908786B2 (en) | 2018-03-06 |
EP2736106A2 (en) | 2014-05-28 |
JP2014107269A (ja) | 2014-06-09 |
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