JP2012505504A - 変性複合酸化物を活性物質として含む電極 - Google Patents
変性複合酸化物を活性物質として含む電極 Download PDFInfo
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Abstract
Description
・三座グラフトによって固定される基[例えばRP又は(RO)P];
・二座グラフトによって固定される基[例えばRP(OR)、R2P又は(RO)2P];
・単座グラフトによって固定される基[例えばP(OR)3、RP(OR)2及びR2P(OR)]:
であることができる(ここで、基Rは水素、1〜10個の炭素原子を有するアルキル基及びフェニル基から選択される同一の又は異なる基であり、この基は置換、付加、縮合又は重合によって反応し得る官能基を有する置換基1個以上を随意に有していてよい)。
・「未変性複合酸化物」とは、その表面上にOH基を持つ複合酸化物、即ち通常の貯蔵条件下、空気及び/又は湿気の存在下にある時のような複合酸化物を意味する;
・「変性複合酸化物」とは、リン含有試薬で処理した後に得られる材料、即ち表面上に上で定義したリン含有基を有する複合酸化物を意味する。
・変性複合酸化物の粒子:50〜90重量%、好ましくは70重量%、
・電子伝導特性を付与する材料:10〜30重量%、好ましくは30重量%、及び
・随意としての機械的特性を付与する材料:最大10重量%
を含むことができる。
未変性のLiV3O8の粒子に基づく電極の表面の50サイクル後の顕微鏡写真(左の顕微鏡写真)及びLiV3O8−PPOの粒子に基づく電極の表面の70サイクル後の顕微鏡写真(右の顕微鏡写真)を示す。
Claims (20)
- 電極材料を有する電気伝導性支持体を含む電極であって、前記電極材料が複合酸化物の粒子から成る活性物質を含み且つこの複合酸化物の粒子がその表面上に共有結合で固定された有機リン含有基を有すること、並びに前記の複合酸化物の粒子の表面上の前記有機リン含有基の被覆率が40〜60%の範囲であることを特徴とする、前記電極。
- 前記の複合酸化物の粒子の表面上の前記有機リン含有基の被覆率が50%ほどであることを特徴とする、請求項1に記載の電極。
- 前記有機リン含有基が三座グラフト、二座グラフト又は単座グラフトによって固定されたことを特徴とする、請求項1又は2に記載の電極。
- 前記有機リン含有基がRP、(RO)P、RP(OR)、R2P、(RO)2P、RP(OR)2、(RO)3P、R2P(OR)(ここで、基Rは水素、1〜10個の炭素原子を有するアルキル基及びフェニル基から選択される同一の又は異なる基であり、この基は置換、付加、縮合又は重合によって反応し得る官能基を有する置換基1個以上を随意に有していてよい)から選択されることを特徴とする、請求項1〜3のいずれかに記載の電極。
- 前記の複合酸化物の粒子がLiV3O8、LiMn2O4、LiCoO2、LiMPO4(M=Fe、Mn又はCo)、Li2MSiO4(M=Fe、Mn又はCo)、LiFeBO3、Li4Ti5O12、LiMn2O4、LiNi1-y-zMnyCozAltO2(0<y<1;0<z<1;0<t<1)、V2O5、MnO2、LiFePO4F、Li3V2(PO4)3及びLiVPO4Fの粒子から選択されることを特徴とする、請求項1〜4のいずれかに記載の電極。
- 前記活性物質がイオン伝導特性を付与する材料、電子伝導特性を付与する材料及び随意としての機械的特性を付与する材料から選択される少なくとも1種の成分をさらに含むことを特徴とする、請求項1〜5のいずれかに記載の電極。
- 前記のイオン伝導特性を付与する材料がリチウム塩であることを特徴とする、請求項6に記載の電極。
- 前記の電子伝導特性を付与する材料がカーボンであることを特徴とする、請求項6に記載の電極。
- 前記の機械的特性を付与する材料が有機バインダーであることを特徴とする、請求項6に記載の電極。
- 前記電極材料が変性された複合酸化物の粒子50〜90重量%、電子伝導特性を付与する材料10〜30重量%及び随意としての機械的特性を付与する材料10重量%以下を含むことを特徴とする、請求項6に記載の電極。
- 前記電極材料が変性された複合酸化物の粒子70重量%及び電子伝導特性を付与する材料30重量%を含むことを特徴とする、請求項9に記載の電極。
- 前記電気伝導性支持体が陽極についてはアルミニウム製の集電体であり、陰極については銅製の集電体であることを特徴とする、請求項1〜11のいずれかに記載の電極。
- 請求項1〜12のいずれかに記載の電極の製造方法であって、複合酸化物とP=O基を有するリン含有試薬との反応によって変性複合酸化物を調製することから成る工程及び得られた変性複合酸化物を電気伝導性支持体上に付着させる工程を含むことを特徴とする、前記方法。
- 前記リン含有試薬が式R3-n(RO)nP=O(ここで、nは1〜3の範囲の整数であり、基Rは水素、1〜10個の炭素原子を有するアルキル基及びフェニル基から選択される同一の又は異なる基であり、この基は置換、付加、縮合又は重合によって反応し得る官能基を有する置換基1個以上を随意に有していてよい)に相当することを特徴とする、請求項13に記載の方法。
- 前記リン含有試薬がフェニルホスホン酸(PPO)であることを特徴とする、請求項13又は14に記載の方法。
- 前記の変性複合酸化物の調製工程を24時間実施することを特徴とする、請求項13〜15のいずれかに記載の方法。
- 溶剤中の溶液状のリチウム塩を含む電解質によって隔てられた陽極及び陰極を含み、その機能が前記電極間のリチウムイオンの可逆的循環によって保証されるリチウムバッテリーであって、前記電極の少なくとも一方が請求項1〜12のいずれかに記載の電極であることを特徴とする、前記リチウムバッテリー。
- 前記の請求項1〜12のいずれかに記載の電極が陽極であることを特徴とする、請求項17に記載のバッテリー。
- 前記陰極が金属リチウム又はβ−LiAl、γ−LiAl、Li−Pb、Li−Cd−Pb、Li−Sn、Li−Sn−Cd及びLi−Sn合金から選択されるリチウム合金から成ることを特徴とする、請求項18に記載のバッテリー。
- 前記陰極が有機バインダー及び低いレドックス電位においてリチウムイオンを可逆的に導入することができる材料を含むことを特徴とする、請求項18に記載のバッテリー。
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FR0805572A FR2937185B1 (fr) | 2008-10-09 | 2008-10-09 | Electrode comprenant un oxyde complexe modifie comme matiere active. |
FR0805572 | 2008-10-09 | ||
PCT/FR2009/051906 WO2010040950A1 (fr) | 2008-10-09 | 2009-10-07 | Electrode comprenant un oxyde complexe modifie comme matiere active |
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US (1) | US20120077081A9 (ja) |
EP (1) | EP2351126B1 (ja) |
JP (1) | JP2012505504A (ja) |
KR (1) | KR20110070900A (ja) |
CN (1) | CN102210048B (ja) |
CA (1) | CA2739699C (ja) |
ES (1) | ES2439270T3 (ja) |
FR (1) | FR2937185B1 (ja) |
WO (1) | WO2010040950A1 (ja) |
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JP2012234665A (ja) * | 2011-04-28 | 2012-11-29 | Nippon Zeon Co Ltd | リチウム二次電池用負極スラリー組成物、リチウム二次電池用負極の製造方法、リチウム二次電池用負極及びリチウム二次電池 |
JP2013084565A (ja) * | 2011-09-30 | 2013-05-09 | Fuji Heavy Ind Ltd | 正極材料、これを用いたリチウムイオン二次電池、及び正極材料の製造方法 |
JP2015018775A (ja) * | 2013-07-12 | 2015-01-29 | 日本電気株式会社 | 二次電池用負極およびその製造方法、それを用いた二次電池 |
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CA2506104A1 (en) * | 2005-05-06 | 2006-11-06 | Michel Gauthier | Surface modified redox compounds and composite electrode obtain from them |
JP5082308B2 (ja) * | 2006-07-03 | 2012-11-28 | ソニー株式会社 | 正極活物質およびその製造方法、並びに非水電解質二次電池 |
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2008
- 2008-10-09 FR FR0805572A patent/FR2937185B1/fr not_active Expired - Fee Related
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2009
- 2009-10-07 KR KR1020117010611A patent/KR20110070900A/ko not_active Application Discontinuation
- 2009-10-07 WO PCT/FR2009/051906 patent/WO2010040950A1/fr active Application Filing
- 2009-10-07 EP EP09755977.7A patent/EP2351126B1/fr not_active Not-in-force
- 2009-10-07 CN CN200980144619.7A patent/CN102210048B/zh not_active Expired - Fee Related
- 2009-10-07 US US13/122,592 patent/US20120077081A9/en not_active Abandoned
- 2009-10-07 ES ES09755977.7T patent/ES2439270T3/es active Active
- 2009-10-07 CA CA2739699A patent/CA2739699C/fr not_active Expired - Fee Related
- 2009-10-07 JP JP2011530527A patent/JP2012505504A/ja active Pending
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JP2002216768A (ja) * | 2001-01-18 | 2002-08-02 | Hitachi Maxell Ltd | 非水二次電池 |
JP2002270184A (ja) * | 2001-03-14 | 2002-09-20 | Hitachi Maxell Ltd | 非水二次電池 |
JP2003045433A (ja) * | 2001-07-30 | 2003-02-14 | Hitachi Maxell Ltd | 非水二次電池 |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
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JP2012234665A (ja) * | 2011-04-28 | 2012-11-29 | Nippon Zeon Co Ltd | リチウム二次電池用負極スラリー組成物、リチウム二次電池用負極の製造方法、リチウム二次電池用負極及びリチウム二次電池 |
JP2013084565A (ja) * | 2011-09-30 | 2013-05-09 | Fuji Heavy Ind Ltd | 正極材料、これを用いたリチウムイオン二次電池、及び正極材料の製造方法 |
US8802293B2 (en) | 2011-09-30 | 2014-08-12 | Fuji Jukogyo Kabushiki Kaisha | Positive electrode material |
JP2015018775A (ja) * | 2013-07-12 | 2015-01-29 | 日本電気株式会社 | 二次電池用負極およびその製造方法、それを用いた二次電池 |
Also Published As
Publication number | Publication date |
---|---|
EP2351126A1 (fr) | 2011-08-03 |
FR2937185B1 (fr) | 2011-02-25 |
EP2351126B1 (fr) | 2013-09-11 |
FR2937185A1 (fr) | 2010-04-16 |
WO2010040950A1 (fr) | 2010-04-15 |
CN102210048A (zh) | 2011-10-05 |
ES2439270T3 (es) | 2014-01-22 |
CA2739699C (fr) | 2017-01-17 |
CA2739699A1 (fr) | 2010-04-15 |
CN102210048B (zh) | 2014-04-30 |
KR20110070900A (ko) | 2011-06-24 |
US20120077081A9 (en) | 2012-03-29 |
US20110250497A1 (en) | 2011-10-13 |
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