JP5665742B2 - 充電式リチウム電池用のカソード活性材料としてのリチウム金属ホスフェート/炭素ナノコンポジット - Google Patents
充電式リチウム電池用のカソード活性材料としてのリチウム金属ホスフェート/炭素ナノコンポジット Download PDFInfo
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Description
a)リン酸またはリン酸塩またはリン酸エステルを含む活性化剤をセルロース質前駆体に含浸するステップ、
b)含浸セルロース質前駆体を約450℃から約800℃の温度まで加熱することによって大比表面積のリン酸化炭素を生成するステップ、
c)こうして得られたリン酸化炭素をリチウム、遷移金属、任意選択のドーパントおよび必要であれば追加のホスフェートの前駆体と混合するステップ、
d)ステップc)の混合物を約450℃から約800℃の温度まで加熱することによってリチウム金属ホスフェートと炭素とのナノコンポジットを生成するステップを含む。
セルロース粉末(2g)を85%H3PO4(2g)と水(4g)の溶液で含浸し、空気中で周囲温度から470℃まで1時間以内で加熱した。硫酸/硝酸で試料を温浸した後、得られた活性化炭素のリン含量をリンモリブデンブルー法によって測定した結果は9.1mmolP/gであった。
Claims (9)
- 充電式電池のカソード活性材料としてのリチウム金属ホスフェート/炭素ナノコンポジットを合成するための方法であって、リン酸化炭素と、リチウムおよび遷移金属の前駆体を混合し反応させることを含む方法。
- 以下のステップ:
a)リン酸またはリン酸塩またはリン酸エステルを含む活性化剤をセルロース質前駆体に含浸するステップ、
b)含浸セルロース質前駆体を加熱することによって大比表面積のリン酸化炭素を生成するステップ、
c)前記リン酸化炭素をリチウムおよび遷移金属の前駆体と混合するステップ、
d)ステップc)の混合物を加熱することによってリチウム金属ホスフェートと炭素のナノコンポジットを生成するステップ
を含む、請求項1に記載の方法。 - セルロース質前駆体が、木材、農業残渣、ナッツ殻、ナッツ種、果実核、木綿、麻、ジュート、樹皮、コルク、セルロースパルプ、紙またはそれらの混合物である、請求項2に記載の方法。
- セルロース質前駆体が、セルロースパルプ、紙もしくは木綿またはそれらの混合物である、請求項2に記載の方法。
- セルロース質前駆体が、0.1から5.0の範囲の含浸比(ホスフェートまたはリン酸とセルロース質前駆体の乾燥基準の重量比)で、オルトリン酸H3PO4を用いて含浸される、請求項2に記載の方法。
- グラファイト化触媒がステップa)で添加される、請求項2に記載の方法。
- ステップa)の含浸セルロース質前駆体が、450℃から1000℃の範囲の温度まで加熱される、請求項2に記載の方法。
- 含浸セルロース質前駆体が発泡される、請求項7に記載の方法。
- 炭素が、炭素−酸素−リン(C−O−P)ブリッジを介してリチウム金属ホスフェートと共有結合している、請求項1に従って得られるリチウム金属ホスフェート/炭素ナノコンポジット。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
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IB2008053142 | 2008-08-05 | ||
IBPCT/IB2008/053142 | 2008-08-05 | ||
PCT/IB2009/053300 WO2010015969A2 (en) | 2008-08-05 | 2009-07-29 | Lithium metal phosphate/carbon nanocomposites as cathode active materials for rechargeable lithium batteries |
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JP2011530153A JP2011530153A (ja) | 2011-12-15 |
JP2011530153A5 JP2011530153A5 (ja) | 2012-09-13 |
JP5665742B2 true JP5665742B2 (ja) | 2015-02-04 |
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JP2011521664A Expired - Fee Related JP5665742B2 (ja) | 2008-08-05 | 2009-07-29 | 充電式リチウム電池用のカソード活性材料としてのリチウム金属ホスフェート/炭素ナノコンポジット |
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US (1) | US8435677B2 (ja) |
EP (1) | EP2331458B1 (ja) |
JP (1) | JP5665742B2 (ja) |
KR (1) | KR101628416B1 (ja) |
CN (1) | CN102137811A (ja) |
CA (1) | CA2732854C (ja) |
WO (1) | WO2010015969A2 (ja) |
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WO2009127901A1 (en) * | 2008-04-14 | 2009-10-22 | High Power Lithium S.A. | Lithium metal phosphate/carbon nanocomposites as cathode active materials for secondary lithium batteries |
US10293329B2 (en) * | 2008-06-18 | 2019-05-21 | Board Of Trustees Of The University Of Arkansas | Doped-carbon composites, synthesizing methods and applications of the same |
CN101752561B (zh) * | 2009-12-11 | 2012-08-22 | 宁波艾能锂电材料科技股份有限公司 | 石墨烯改性磷酸铁锂正极活性材料及其制备方法以及锂离子二次电池 |
DE112011103395T5 (de) | 2010-10-08 | 2013-08-14 | Semiconductor Energy Laboratory Co., Ltd. | Verfahren zum Herstellen eines Positivelektrodenaktivmaterials für eine Energiespeichervorrichtung und Energiespeichervorrichtung |
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KR102289992B1 (ko) | 2015-03-09 | 2021-08-18 | 다이헤이요 세멘토 가부시키가이샤 | 이차전지용 양극 활물질 및 그 제조방법 |
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KR101871174B1 (ko) * | 2016-12-06 | 2018-07-02 | 대한민국 | 커피콩 추출물을 이용한 활성 탄소의 제조방법 및 이를 포함하는 전지용 전극 |
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-
2009
- 2009-07-29 EP EP09786743.6A patent/EP2331458B1/en not_active Not-in-force
- 2009-07-29 JP JP2011521664A patent/JP5665742B2/ja not_active Expired - Fee Related
- 2009-07-29 CN CN2009801293863A patent/CN102137811A/zh active Pending
- 2009-07-29 KR KR1020117005203A patent/KR101628416B1/ko not_active IP Right Cessation
- 2009-07-29 US US13/057,252 patent/US8435677B2/en not_active Expired - Fee Related
- 2009-07-29 CA CA2732854A patent/CA2732854C/en not_active Expired - Fee Related
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CA2732854C (en) | 2016-10-25 |
US20110136014A1 (en) | 2011-06-09 |
JP2011530153A (ja) | 2011-12-15 |
EP2331458B1 (en) | 2018-12-12 |
CA2732854A1 (en) | 2010-02-11 |
US8435677B2 (en) | 2013-05-07 |
KR101628416B1 (ko) | 2016-06-08 |
WO2010015969A3 (en) | 2010-12-02 |
KR20110053985A (ko) | 2011-05-24 |
EP2331458A2 (en) | 2011-06-15 |
CN102137811A (zh) | 2011-07-27 |
WO2010015969A2 (en) | 2010-02-11 |
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