Invention Application
- Patent Title: CARBONACEOUS COMPOSITE MATERIALS WITH SNOWBALL-LIKE MORPHOLOGY
- Patent Title (中): 具有类球形结构的含碳复合材料
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Application No.: PCT/EP2016/075423Application Date: 2016-10-21
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Publication No.: WO2017068147A1Publication Date: 2017-04-27
- Inventor: SPAHR, Michael , ULMANN, Pirmin , ZÜRCHER, Simone , PACHECO BENITO, Sergio
- Applicant: IMERYS GRAPHITE & CARBON SWITZERLAND LTD.
- Applicant Address: Strada Industriale 6743 Bodio CH
- Assignee: IMERYS GRAPHITE & CARBON SWITZERLAND LTD.
- Current Assignee: IMERYS GRAPHITE & CARBON SWITZERLAND LTD.
- Current Assignee Address: Strada Industriale 6743 Bodio CH
- Agency: EDER, Michael
- Priority: EP15190921.5 20151021; US62/244,556 20151021
- Main IPC: H01M2/00
- IPC: H01M2/00
Abstract:
The present disclosure relates to a novel process for preparing isotropic carbonaceous composite particles with favorable crystallographic, morphological & mechanical properties, wherein relatively fine carbonaceous primary particles are coated with a carbonaceous binder precursor material, agglomerated and finally heat-treated at temperatures of between about 1850 and 3500°C to convert the binder precursor material to non-graphitic or graphitic carbon, thereby resulting in stable highly isotropic carbonaceous composite materials wherein the primary particles of the aggregate are held together by the carbonized/graphitized binder. The present disclosure also relates to the isotropic carbonaceous composite particles obtainable by the process described herein. The disclosure further relates to uses of said isotropic carbonaceous composite material in various applications, including as active material in negative electrodes in lithium-ion batteries, and in secondary products containing said isotropic carbonaceous composite material.
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