JP7042759B2 - 電気化学的ストレージ用の複合材料 - Google Patents
電気化学的ストレージ用の複合材料 Download PDFInfo
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Description
アノード製造のための以下の例となるプロセスは、概して、構成要素を一緒に混合するステップと、それらの構成要素を除去可能な基板上にキャストするステップ、乾燥するステップと、硬化するステップと、基板を除去するステップと、次に、得られた試料を熱分解するステップと、を含む。典型的には、N-メチルー2-ピロリドン(NMP)が、溶媒として使用され、任意の混合物の粘度を変更し、ドクターブレード手法を使用して、それをキャスタブルにする。
図12は、金属箔支持層を備えない、4.3cm×4.3cmの複合アノード膜の写真である。複合アノード膜は、約30マイクロメートルの厚さを有し、約15.8重量のPI 2611由来の炭素、約10.5重量%のグラファイト粒子、および約73.7重量%のケイ素の組成を有する。
101、102、103、104、105 ブロック
Claims (9)
- 電池電極に使用する複合材料膜の形成方法であって、
前駆体およびケイ素粒子を含む混合物を提供するステップと、
前記前駆体を、マトリクス相として硬質炭素を含む一種または複数種の炭素相に変換するために、前記混合物を熱分解するステップであって、前記ケイ素粒子と前記硬質炭素との間にケイ素炭化物層が形成される、ステップとを含み、
前記前駆体を熱分解するステップの結果、前記混合物が、自立複合材料膜を形成し、
前記ケイ素粒子が、前記複合材料膜の全体にわたって分散されており、
前記一種または複数種の炭素相が、前記複合材料膜の10重量%~25重量%の硬質炭素を含み、
前記複合材料膜が、50重量%以上70重量%以下のケイ素粒子を含む、方法。 - 基板上に前記混合物をキャストするステップと、
前記混合物を乾燥するステップとをさらに含む、請求項1に記載の方法。 - ホットプレス中に乾燥された前記混合物を配置するステップをさらに含む、請求項2に記載の方法。
- 前記混合物を提供するステップが、10nmから40μmの平均最大寸法を有するケイ素粒子を提供するステップを含む、請求項1から3の何れか一項に記載の方法。
- 前記混合物を提供するステップが、前記混合物中に導電性粒子を提供するステップを含む、請求項1から4の何れか一項に記載の方法。
- 前記混合物を提供するステップが、前記混合物中に銅、ニッケルまたはステンレス鋼の粒子を提供するステップを含む、請求項1から5の何れか一項に記載の方法。
- 前記複合材料膜が、電気化学的に活性である、請求項1から6の何れか一項に記載の方法。
- 前記炭素相の少なくとも1つが、電気化学的に活性であり、かつ導電性である、請求項1から7の何れか一項に記載の方法。
- 前記炭素相の少なくとも1つが、連続相である、請求項1から8の何れか一項に記載の方法。
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JP2021208154A JP2022031371A (ja) | 2010-01-18 | 2021-12-22 | 電気化学的ストレージ用の複合材料 |
JP2023197393A JP2024014999A (ja) | 2010-01-18 | 2023-11-21 | 電気化学的ストレージ用の複合材料 |
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US61/315,845 | 2010-03-19 |
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