Research on Chemical Vapor Deposition of Amorphous Carbon on Graphite for Lithium Ion Battery Application

埃尔科拉先进材料公司开采、加工、精炼石墨，瞄准锂离子电池的高端石墨市场。根据更广泛的客户需求/兴趣，该公司已经确定了扩大其现有产品范围的重大机会。他们希望在现有产品（球化石墨）的基础上开发一种二次产品——涂覆球化石墨。这一机会将使他们的产品与众不同，并增加埃尔科拉的客户群，因为客户将更有可能购买埃尔科拉的石墨粉，这些石墨粉具有较低的表面积和非晶碳薄膜涂层。因此，该公司正在寻找流化床选择，以均匀地涂覆直径为25微米的石墨球。**由于Elcora没有流化化学气相沉积（CVD）的专业知识，公司寻求流化技术及其原理专家Basu教授的协助，开发一种新的流化CVD方法。**该项目将为Elcora先进材料公司开发一种流化床反应器，用于在锂离子电池用石墨上涂覆非晶碳。申请人**建议开发一种流化床反应器，用于CVD涂覆碳，该反应器将比固定床或搅拌辅助固定床反应器具有更均匀的涂层**。该项目需要研究一个新的领域或流化技术，以开发一种新的选择，用于在非常高的温度下涂层的细颗粒流化床，然后建立和测试一个概念验证单元。有了这个原型反应器，埃尔科拉将能够评估这项新技术的有效性，并将原型开发成大规模生产单位，使他们的产品与众不同，降低生产成本并提高质量。

Elcora Advanced Materials Corporation mines, processes, refines graphite and targets high-end graphite**markets for Lithium-ion batteries. The company has identified a significant opportunity in expanding its**existing product range according to broader customer requests/ interest. They are looking to develop a**secondary product, a coated spheronized graphite from their existing product (spheronized graphite). This**opportunity will differentiate their product and increase the Elcora's customer base as customer's will be more**likely to purchase company's graphite powder having lower surface area and coating of thin film of amorphous**carbon. Thus, the company is looking for fluidized bed options to uniformly coat the graphite spheres of**diameters 25 micrometer.**Since Elcora doesn't have expertise on Chemical vapor deposition (CVD) by fluidization, the company seeks**the assistance of Prof. Basu who is an expert in fluidization technology and its principles, to develop a novel**method of CVD by fluidization.**This project would provide scientific assistance to Elcora Advanced Materials Corporation to develop an**fluidized bed reactor for coating amorphous carbon on graphite for Lithium ion battery application. Applicant**proposes to develop a fluidized bed reactor for coating carbon by CVD that will have more uniform coating**than fixed bed or stirring assisted fixed bed reactor. This project needs to research into a new area or**fluidization technology to develop a new options for fluidized bed of fine particles for coating at very high**temperature and then to build and test a proof of concept unit.**With this prototype reactor, Elcora will be able to evaluate the effectiveness of this new technology and**develop the prototype into mass production units, differentiating their product, reducing production costs and**improving quality.