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Carbon/carbon-silicon carbide gradient composite material sagger and preparation method and application thereof
The invention relates to a carbon/carbon-silicon carbide gradient composite material sagger and a preparation method and application thereof, and belongs to the technical field of lithium battery electrode preparation. The preparation method comprises the following steps: preparing a carbon/carbon-silicon carbide gradient composite material sagger from a silicon-containing carbon fiber composite preform through a chemical vapor co-deposition densification process and a chemical vapor co-deposition coating process; the silicon-containing carbon fiber composite sagger prefabricated part is prepared by spraying or impregnating a carbon fiber prefabricated part with resin of a silicon-containing precursor and/or a silicon-containing organic binder. According to the prepared carbon/carbon-silicon carbide gradient composite material sagger, gradient is formed in the radial direction from inside to outside, the surface carbon content and the reaction speed of the sagger surface and oxygen at the high temperature are reduced, the problems that an existing sagger for a lithium battery is high in strength and prone to oxidation are fundamentally solved, and the service life of the sagger is effectively prolonged.
本申请涉及一种炭/炭‑碳化硅梯度复合材料匣钵及其制备方法与应用，属于锂电池电极制备技术领域。其制备方法包括：含硅炭纤维复合预制件经化学气相共沉积增密工艺、化学气相共沉积涂层工艺制得炭/炭‑碳化硅梯度复合材料匣钵；所述含硅炭纤维复合匣钵预制件由炭纤维预制件喷淋或浸渍含硅前驱体的树脂和/或含硅有机粘结剂制得。本发明制得的炭/炭‑碳化硅梯度复合材料匣钵，由内而外、径向形成梯度，降低了表面炭含量以及高温下匣钵表面与氧的反应速度，从根本上解决目前锂电用匣钵的强度和易氧化问题，有效提高匣钵的使用寿命。
Carbon/carbon-silicon carbide gradient composite material sagger and preparation method and application thereof
The invention relates to a carbon/carbon-silicon carbide gradient composite material sagger and a preparation method and application thereof, and belongs to the technical field of lithium battery electrode preparation. The preparation method comprises the following steps: preparing a carbon/carbon-silicon carbide gradient composite material sagger from a silicon-containing carbon fiber composite preform through a chemical vapor co-deposition densification process and a chemical vapor co-deposition coating process; the silicon-containing carbon fiber composite sagger prefabricated part is prepared by spraying or impregnating a carbon fiber prefabricated part with resin of a silicon-containing precursor and/or a silicon-containing organic binder. According to the prepared carbon/carbon-silicon carbide gradient composite material sagger, gradient is formed in the radial direction from inside to outside, the surface carbon content and the reaction speed of the sagger surface and oxygen at the high temperature are reduced, the problems that an existing sagger for a lithium battery is high in strength and prone to oxidation are fundamentally solved, and the service life of the sagger is effectively prolonged.
本申请涉及一种炭/炭‑碳化硅梯度复合材料匣钵及其制备方法与应用，属于锂电池电极制备技术领域。其制备方法包括：含硅炭纤维复合预制件经化学气相共沉积增密工艺、化学气相共沉积涂层工艺制得炭/炭‑碳化硅梯度复合材料匣钵；所述含硅炭纤维复合匣钵预制件由炭纤维预制件喷淋或浸渍含硅前驱体的树脂和/或含硅有机粘结剂制得。本发明制得的炭/炭‑碳化硅梯度复合材料匣钵，由内而外、径向形成梯度，降低了表面炭含量以及高温下匣钵表面与氧的反应速度，从根本上解决目前锂电用匣钵的强度和易氧化问题，有效提高匣钵的使用寿命。
Carbon/carbon-silicon carbide gradient composite material sagger and preparation method and application thereof
一种炭/炭-碳化硅梯度复合材料匣钵及其制备方法与应用
CHEN HAIWEI (author) / TAN YUEHONG (author)
2024-12-17
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
/
F27D
Einzelheiten oder Zubehör für Industrieöfen, Schachtöfen, Brennöfen oder Retorten, soweit sie nicht auf eine Ofenart eingeschränkt sind
,
DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
/
H01M
Verfahren oder Mittel, z.B. Batterien, für die direkte Umwandlung von chemischer in elektrische Energie
,
PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
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