JP7397110B2 - Cntパルプのネットワークにより画定された構造物を製造するための系および方法 - Google Patents
Cntパルプのネットワークにより画定された構造物を製造するための系および方法 Download PDFInfo
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- JP7397110B2 JP7397110B2 JP2022030702A JP2022030702A JP7397110B2 JP 7397110 B2 JP7397110 B2 JP 7397110B2 JP 2022030702 A JP2022030702 A JP 2022030702A JP 2022030702 A JP2022030702 A JP 2022030702A JP 7397110 B2 JP7397110 B2 JP 7397110B2
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- cnt pulp
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Description
本願は、これにより、この特許の内容全体を参照によって本願明細書に引用したものとする、2016年11月15日に出願された、米国特許出願(USC Utility Application)第15/351,912号に対する恩典および優先権を請求する。
はまた、前記分散物を硬化して、CNTパルプネットワークをその中に形成されている構造物を形成する工程を含み、前記CNTパルプは前記ネットワークを介して前記構造物全体の電子伝達を可能にするために十分な量を提供される。
様々な実施態様に従って、その中にカーボンナノチューブ(CNT)パルプネットワークを有する構造物を製造するための、改善された組成物および方法が提供される。様々な実施態様に従って、前記組成物および方法は、CNTパルプネットワークにより画定された本体と、活性物質と、前記活性物質および前記CNTパルプネットワークを結合する結合剤とを有する構造物を含む場合がある。幾つかの実施態様において、前記構造物は、活性物質と、溶媒と、結合剤との中に分散されたCNTパルプを含む分散物を硬化する工程により形成される場合がある。
うちの1種以上を含む場合がある。
)」、(2)高い完成度を有するチューブを与える場合がある高温法の「アーク放電法」、および(3)「レーザーアブレーション法」:を含む。
to failure)は、本発明において、約10重量%ないし最大約25重量%の範囲の場合がある。
うな液体、または、排気2007の上流で回収されなかったナノ物質を回収するためのフィルター中を通過させられる場合がある。更に、前記排気ガスは、前記排気ガスの様々な成分を不活化するために、火炎で処理される場合があり、例えば反応性水素は酸化されて水を形成する場合がある。
そして前記活性物質粒子を相互接続させるために、より大量の物質が必要とされ、それにより、活性物質の量を低減させ、従って、前記構造物の性能を低下させるであろう。
約1.0重量%の結合剤、および約50重量%の活性物質を含む場合がある。他の実施態様において、前記分散物は、約pH=3にバッファーされた水中に、約0.5重量%のCNTパルプ、約2.2重量%の結合剤、約50重量%の活性物質、約5重量%のエタノールを含む場合がある。
状を有するあらゆる組成物を使用する場合があることは明白であるろう。
定はされない。前記結合剤は、例えば、ポリビニリデンフルオリド(PVDF)、スチレンブタジエンゴム(SBR)、カルボキシメチルセルロース(CMC)、その他の適切な分散性ポリマー、またはそれらの組み合わせの場合がある。幾つかの実施態様において、第2の活性層103は、スーパーキャパシターまたは擬似キャパシター中の電極を含む場合があり、そして前記活性物質は、例えば、黒鉛、グラフェン、炭素繊維、カーボンナノチューブまたはそれらのあらゆる組み合わせのような、導電多孔質物質を含む場合がある。
成せず、従って2Cの放電率においては約50mAh/gの比較的低い容量を示す。しかし、C/2およびC/10のようなより低い放電率においては、約0.25重量%のCNTパルプの複合体は、従来技術の4重量%のカーボンブラック技術品の性能に釣り合うことが可能である。更に図7に示されるように、他の複合体はそれぞれ、2Cの放電率において約110mAh/gの同様な容量を示すが、約0.5重量%のCNTパルプ複合体および約0.75重量%のCNTパルプ複合体は、C/10のような比較的低い放電率においては、比較的高い容量(前記カーボンブラックで約120mAhに比較して約140mAh)を示す。従って、図7に示されるように、CNTパルプネットワークで形成された構造物は、2Cの放電率(高電力印加)に対して、従来のカーボンブラック組成物に比較して、8分の1の低い濃度の(すなわち、約0.5重量%対約4重量%)導電添加剤で浸透閾値を達成する場合がある。より低い電力印加に対しては、16分の1の低い濃度が適切である。
よびカソードを使用するするあらゆる電池全体の、より強い柔軟性を可能にする。電池の柔軟性は、装着可能な電子機器および個人用コンピューターを含む広範な用途に有用な場合がある。しかし、電池の真の柔軟性を得るためには、前記アノードおよび前記カソードは機械的に堅牢で柔軟でなければならない。図9Aは、LFP中約5重量%のカーボンブラック添加剤を有する従来のカソードの画像であり、そして図9Bは、LFP中約1重量%のCNTパルプを有する本開示のカソード構造物の画像である。図9Aに示されるように、従来のカソードは、2.5cm直径のジベル(dowel)の周囲に巻かれると亀裂する。それに対し図9Bに示されるように、約1重量%のCNTパルプのカソードは、0.32cmのドエルの周囲に巻かれるときにも亀裂しない。本開示を考慮すると、CNTパルプを含む他のいずれかの組成物が、様々な実施態様に従って使用される場合があることは明白であろう。一般に、柔軟性と容量との間には二律背反(trade-off)が存在するようであるが、CNTおよび結合剤の割合の増加は更なる柔軟性をもたらす場合がある。しかし、すべての組成物において、CNTパルプ物質の含有は、電池の活性物質に、従来のカーボンブラックまたはCNT粉末添加剤によっては得られることができない柔軟性および強度を与える場合がある。
ノスケール層で被覆するために前記CVD反応器を加熱する工程1205を含む。
Claims (5)
- 化学蒸着法(CVD)反応器中に一定量のCNTパルプを投入する工程と、
前記CVD反応器内の前記CNTパルプ上にシランガスを流す工程と、
前記CNTパルプをシリコンのナノスケール層で被覆するために、前記CNTパルプを加熱する工程と
を含み、前記CNTパルプは、1mm超の長さを有するCNTから得られた相互接続されたカーボンナノチューブの3次元の拡張ネットワークを有する、前記CNTパルプ上にナノスケールのシリコン層を形成する方法。 - 更に、前記CVD反応器内の前記CNTパルプ上に、前記シランガスと一緒にアルゴンガスまたは水素ガスの少なくとも一方を流す工程を含む、請求項1に記載の方法。
- シリコン被膜の前記ナノスケール層は50ナノメートル未満である、請求項1に記載の方法。
- 前記CVD反応器は、ホットウォール抵抗加熱炉であり、そして前記加熱する工程は更に、前記CVD反応器を抵抗加熱する工程を含む、請求項1に記載の方法。
- 前記CVD反応器は、コールドウォール流動床反応器であり、そして前記CNTパルプを加熱する工程は更に、誘電加熱またはマイクロウェーブ加熱のうちの少なくとも一方を含む、請求項1に記載の方法。
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US15/351,912 | 2016-11-15 | ||
US15/351,912 US10581082B2 (en) | 2016-11-15 | 2016-11-15 | Systems and methods for making structures defined by CNT pulp networks |
JP2019546761A JP7197497B2 (ja) | 2016-11-15 | 2017-11-07 | Cntパルプのネットワークにより画定された構造物を製造するための系および方法 |
PCT/US2017/060277 WO2018093603A1 (en) | 2016-11-15 | 2017-11-07 | Systems and methods for making structures defined by cnt pulp networks |
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