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Scale-up of a novel melt-synthesis process for the manufacturing of C-LiFePO4 for automotive applications

用于汽车应用的 C-LiFePO4 制造的新型熔融合成工艺的规模化

基本信息

批准号：
435543-2012
负责人：
Patience, Gregory
金额：
$ 75.72万
依托单位：
École Polytechnique de Montréal
依托单位国家：
加拿大
项目类别：
Automotive Partnership Canada Project
财政年份：
2015
资助国家：
加拿大
起止时间：
2015-01-01 至 2016-12-31
项目状态：
已结题

来源：
https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=574101
关键词：
Scale up novel melt synthesis

项目摘要

Liquid phase synthesis of LiFeP04 has already been demonstrated in laboratory-scale trials and was identified as a possible low-cost alternative for manufacturing pathway. The high temperautre process in the liquid phase, benefits from rapid reaction kinetics and the thermodynamic stability of LiFeP04 in a reducing atmosphere. The aim of the present proposed work is to develop and pilot of the molten synthesis process and accelerate its scale-up to a commercial-scale for the manufacturing of low-cost C-LiFeP04 for EV and PHEV applications. Main project steps are: 1. Reactant selection and formulation 2. Degassing, mixing, melting and casting 3. Ingot comminution to'sub-micron size 4. Spray drying (if needed, following wet milling) 5. Pyrolysis and carbon coating (optionally in a gas-solid contactor) 6. Laboratory testing in small cells 7. Field testing by customers EV and PHEV applications 8. Techno-economic evaluation of industrial-scale plant Steps 2 and 3 are seen as the most critical to achieve the project goals of cost and stable performance on cycling. Step 5 is also an important step. II is believed that carbon deposition in a gas-solid c6ntactor (e.g. fluidized bed) will improve the performance (e.g. cycle-life, conductivity) of the C-LiFeP04 over Phostech's existing carbon coating approach.

LiFeP 〇 4的液相合成已经在实验室规模的试验中得到证实，并且被鉴定为是一种有效的方法。可能的低成本替代制造途径。液相中的高温过程，从快速反应动力学和LiFePO 4在还原气氛中的热力学稳定性。的目的目前提出的工作是开发和试点的熔融合成工艺，并加快其规模扩大到一个用于制造用于EV和PHEV应用的低成本C-LiFeP 〇 4的商业规模。项目的主要步骤是： 1.反应物选择和配制 2.除气、混合、熔化和浇铸 3.锭料粉碎至亚微米尺寸 4.喷雾干燥（如果需要，在湿磨后） 5.热解和碳涂层（可选地在气-固接触器中） 6.小细胞实验室测试 7.客户的EV和PHEV应用现场测试 8.工业规模工厂的技术经济评价第2步和第3步被认为是实现成本和稳定的自行车性能的项目目标的最关键步骤。第五步也是重要的一步。据信，在气-固接触器（例如流化床）中的碳沉积将在Phostech现有的碳涂层上提高C-LiFePO 4的性能（例如循环寿命、导电性） approach.