JP2017532748A - グラフェン系炭素粒子を含むリチウムイオンバッテリ電極 - Google Patents
グラフェン系炭素粒子を含むリチウムイオンバッテリ電極 Download PDFInfo
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Abstract
Description
本願は、米国特許出願第14/348,280号(2014年3月28日出願)の一部継続出願であり、該出願は、国際出願/US2012/057811(2012年9月28日出願)の国内段階であり、該出願は、米国特許出願第13/249,315号(2011年9月30日出願、現在、2013年7月16日発行米国特許第8,486,363号)および米国特許出願第13/309,894号(2011年12月2日出願、現在、2013年7月16日発行米国特許第8,486,364号)に対する優先権を主張し、上記出願の全ては、参照により本明細書に引用される。
本発明は、グラフェン系炭素粒子を含むリチウムイオンバッテリ電極に関する。
溶媒等級のN−メチル−2−ピロリドン(Ashland、570.7グラム)が、プラスチック容器に添加された。Cowles Bladeを用いて撹拌する間、Kynar HSV 900 PVDF(Arkema、29.3グラム)が、少しずつ添加された。撹拌は、PVDFが完全に溶解されるまで継続された。複数の試料が、表1に列挙されるように、32.79グラムのPVDF結合剤溶液を、種々のタイプおよび量の炭素質添加剤と混合することによって調製された。粉末を直接添加する代わりに、アクリル系分散剤が、グラフェン系炭素粒子のために使用された。試料番号1−6において使用された熱的に生産されたグラフェン系炭素粒子は、米国特許出願第13/309,894号に開示される、前駆体材料としてメタンを利用する熱生産方法によって生産された。試料番号1−6の熱的に生産されたグラフェン系炭素粒子はさらに、いずれの残留低分子量炭化水素汚染物質も抽出するために、トルエン溶液を用いて処理された。試料番号7−12において使用されたxGNP−C300グラフェン系炭素粒子および試料番号13−18において使用されたxGNP−C700グラフェン系炭素粒子は、XG Sciencesから商業的に利用可能であった。試料番号19−24において使用されたGraphene X Technologies製グラフェン系炭素粒子は、Graphene Technologyから商業的に利用可能であった。試料番号4−6、10−12、16−18、22−24、および25−27において使用されたカーボンブラック粒子は、TimcalからのC−Nergy Super C65粒子であった。
Claims (17)
- リチウムイオンバッテリ電極材料であって、
リチウム含有活性材料と、
熱的に生産されたグラフェン系炭素粒子と、
結合剤と
を含む、リチウムイオンバッテリ電極材料。 - 80〜99.5重量パーセントの前記リチウム含有材料と、0.5〜10重量パーセントの前記熱的に生産されたグラフェン系炭素粒子と、0.5〜10重量%の前記結合剤とを含む、請求項1に記載のリチウムイオンバッテリ電極材料。
- 前記リチウム含有活性材料は、87〜99重量パーセントを成し、前記熱的に生産されたグラフェン系炭素粒子は、1〜8重量パーセントを成す、請求項1に記載のリチウムイオンバッテリ電極材料。
- 前記リチウム含有活性材料は、リン酸鉄リチウム、コバルト酸リチウム、ニッケルコバルトアルミン酸リチウム、マンガン酸リチウム、ニッケルコバルトマンガン酸リチウム、またはそれらの組み合わせを含む、請求項1に記載のリチウムイオンバッテリ電極材料。
- 前記熱的に生産されたグラフェン系炭素粒子は、3:1を上回るアスペクト比を有し、3,500℃を上回る温度を有する熱区域において生産される、請求項1に記載のリチウムイオンバッテリ電極材料。
- 前記熱的に生産されたグラフェン系炭素粒子は、0.3〜6ナノメートルの平均厚さを有する、請求項1に記載のリチウムイオンバッテリ電極材料。
- 前記熱的に生産されたグラフェン系炭素粒子は、グラムあたり70平方メートルを上回るBET比表面積を有する、請求項1に記載のリチウムイオンバッテリ電極材料。
- 前記結合剤は、PVDF、アクリル、またはそれらの組み合わせから選択されるポリマーを含む、請求項1に記載のリチウムイオンバッテリ電極材料。
- 分散剤をさらに含む、請求項1に記載のリチウムイオンバッテリ電極材料。
- 前記バッテリ電極材料は、導電性基板上の層として提供される、請求項1に記載のリチウムイオンバッテリ電極材料。
- 前記バッテリ電極材料の層は、10〜500ミクロンの厚さを有する、請求項10に記載のリチウムイオンバッテリ電極材料。
- 前記バッテリ電極材料の層は、20〜200ミクロンの厚さを有する、請求項10に記載のリチウムイオンバッテリ電極材料。
- 前記バッテリ電極材料は、240オーム/平方未満の電気抵抗率を有する、請求項1に記載のリチウムイオンバッテリ電極材料。
- 前記バッテリ電極材料は、100オーム/平方未満の電気抵抗率を有する、請求項1に記載のリチウムイオンバッテリ電極材料。
- リチウムイオンバッテリカソード材料であって、
リチウム含有活性材料と、
グラフェン系炭素粒子と、
結合剤と
を含み、前記材料は、200オーム/平方未満の電気抵抗率を有する、リチウムイオンバッテリカソード材料。 - リチウムイオンバッテリであって、
アノードと、
カソードと、
前記アノードと前記カソードとの間のセパレータと、
前記アノードおよび前記カソードと接触する電解質と
を備え、前記カソードは、リチウム含有活性材料、熱的に生産されたグラフェン系炭素粒子、および結合剤のコーティングを備えている、
リチウムイオンバッテリ。 - 前記カソードコーティングは、金属フォイルを備えている導電性基板上に提供される、請求項16に記載のリチウムイオンバッテリ。
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US14/530,007 US9761903B2 (en) | 2011-09-30 | 2014-10-31 | Lithium ion battery electrodes including graphenic carbon particles |
US14/530,007 | 2014-10-31 | ||
PCT/US2015/058235 WO2016069996A2 (en) | 2014-10-31 | 2015-10-30 | Lithium ion battery electrodes including graphenic carbon particles |
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JP2021103313A Division JP2021144955A (ja) | 2014-10-31 | 2021-06-22 | グラフェン系炭素粒子を含むリチウムイオンバッテリ電極 |
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JP2014528897A (ja) * | 2011-09-30 | 2014-10-30 | ピーピージー・インダストリーズ・オハイオ・インコーポレイテッドPPG Industries Ohio,Inc. | 炭化水素前駆体物質を利用するグラフェン系炭素粒子の作製 |
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Cited By (4)
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KR20210114514A (ko) * | 2019-02-20 | 2021-09-23 | 피피지 인더스트리즈 오하이오 인코포레이티드 | 그래핀 탄소 나노입자 및 분산제 수지를 함유한 분산물 |
JP2022521587A (ja) * | 2019-02-20 | 2022-04-11 | ピーピージー・インダストリーズ・オハイオ・インコーポレイテッド | グラフェン炭素ナノ粒子及び分散剤樹脂を含有する分散液 |
KR102616754B1 (ko) * | 2019-02-20 | 2023-12-20 | 피피지 인더스트리즈 오하이오 인코포레이티드 | 그래핀 탄소 나노입자 및 분산제 수지를 함유한 분산물 |
JP7447135B2 (ja) | 2019-02-20 | 2024-03-11 | ピーピージー・インダストリーズ・オハイオ・インコーポレイテッド | グラフェン炭素ナノ粒子及び分散剤樹脂を含有する分散液 |
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KR102379403B1 (ko) | 2022-03-25 |
JP6937689B2 (ja) | 2021-09-22 |
KR20190108195A (ko) | 2019-09-23 |
KR20170069287A (ko) | 2017-06-20 |
JP2021144955A (ja) | 2021-09-24 |
WO2016069996A2 (en) | 2016-05-06 |
CN107004829A (zh) | 2017-08-01 |
EP3213362A2 (en) | 2017-09-06 |
CN107004829B (zh) | 2022-07-12 |
TW201622214A (zh) | 2016-06-16 |
TWI621297B (zh) | 2018-04-11 |
WO2016069996A3 (en) | 2016-12-29 |
JP2019071304A (ja) | 2019-05-09 |
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