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

• 批准号: 435543-2012
• 负责人: Patience, Gregory
• 金额: $ 70.07万
• 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: 2017
• 资助国家: 加拿大
• 起止时间: 2017-01-01 至 2018-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=619393
• 关键词: Scale; up; novel; melt; synthesis

Liquid phase synthesis of LiFeP04 has already been demonstrated in laboratory-scale trials and was identified as apossible low-cost alternative for manufacturing pathway. The high temperautre process in the liquid phase, benefitsfrom rapid reaction kinetics and the thermodynamic stability of LiFeP04 in a reducing atmosphere. The aim of thepresent proposed work is to develop and pilot of the molten synthesis process and accelerate its scale-up to acommercial-scale for the manufacturing of low-cost C-LiFeP04 for EV and PHEV applications.Main project steps are:1. Reactant selection and formulation2. Degassing, mixing, melting and casting3. Ingot comminution to'sub-micron size4. Spray drying (if needed, following wet milling)5. Pyrolysis and carbon coating (optionally in a gas-solid contactor)6. Laboratory testing in small cells7. Field testing by customers EV and PHEV applications8. Techno-economic evaluation of industrial-scale plantSteps 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) willimprove the performance (e.g. cycle-life, conductivity) of the C-LiFeP04 over Phostech's existing carbon coatingapproach.

LiFePO 4的液相合成已经在实验室规模的试验中得到证实，并被确定为生产途径的可能的低成本替代品。液相中的高温过程得益于快速反应动力学和LiFePO 4在还原气氛中的热力学稳定性。本研究的目的是开发和试验熔融合成工艺，并加速其规模扩大到商业规模，以生产用于电动汽车和PHEV应用的低成本C-LiFePO 4。反应物的选择和配制2.除气、混合、熔化和浇铸3.锭块粉碎至亚微米尺寸4.喷雾干燥（如果需要，在湿磨之后）5.热解和碳涂覆（任选地在气-固接触器中）6.小细胞实验室测试7.客户EV和PHEV应用的现场测试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循环性能稳定的项目目标的最关键步骤，第5步也是重要步骤。据信，在气-固接触器（例如流化床）中的碳沉积将改善C-LiFePO 4的性能（例如循环寿命、导电性）超过Phostech现有的碳涂层方法。