文献类型：期刊文献

英文题名：3D multi-physics simulation of full-scale roller hearth kilns for processing lithium-ion battery cathode materials

作者：Jin, Xisheng[1];Dai, Yuanshen[2,3];Zhang, Peng[3,5];Li, Ping[1];Shao, Zhijiang[2];Yang, Minglei[5];Cao, Chenxi[4,5,6];Du, Wenli[5]

机构：[1]East China Univ Sci & Technol, Sch Chem Engn, State Key Lab Green Chem Engn & Ind Catalysis, Shanghai 200237, Peoples R China;[2]Zhejiang Univ, Coll Control Sci & Engn, Hangzhou 310027, Zhejiang, Peoples R China;[3]BASF China Co Ltd, Shanghai 200137, Peoples R China;[4]East China Univ Sci & Technol, State Key Lab Ind Control Technol, Shanghai, Peoples R China;[5]East China Univ Sci & Technol, Key Lab Smart Mfg Energy Chem Proc, Minist Educ, Shanghai 200237, Peoples R China;[6]Huzhou Inst Ind Control Technol, Huzhou 313099, Peoples R China

年份：2026

卷号：327

外文期刊名：CHEMICAL ENGINEERING SCIENCE

收录：;EI(收录号：20261320378455);WOS:【SCI-EXPANDED(收录号:WOS:001707145200001)】；

基金：This work is supported by the National Science and Technology Major Project (2025ZD1607700, 2025ZD1607100) , the Programme of Introducing Talents of Discipline to Universities (the 111 Project) under Grant B17017, and Fundamental Research Funds for the Central Uni-versities (222202617006) .

语种：英文

外文关键词：Lithium-ion battery; Cathode material; Roller hearth kiln; Computational fluid dynamics; Multi-physical fields

摘要：Electrically heated roller hearth kilns (RHKs) are crucial apparatus for industrial production of lithium-ion battery cathode materials. However, their high-aspect-ratio chambers and harsh operating temperatures pose significant challenges to internal monitoring and product quality control. This study introduces a segmented modeling and coupled simulation framework for full-scale RHKs, incorporating a heat flux variation approach for saggar movement. The numerical model is validated against industrial operational data, demonstrating strong predictive capabilities with maximum relative errors of 5.16% and 6.35% for the firing and cooling sections, respectively. This work unveils the full temperature and flow field distributions during continuous ternary cathode calcination. Results indicate that discrepancies between thermocouple readings and actual saggar temperatures lead to excessive energy consumption. Furthermore, partition wall configurations, heating element layout, and saggar stacking gaps are identified as critical factors governing thermal efficiency and material uniformity. These profound insights provide crucial guidance for the future design of more energy-efficient RHKs and optimized calcination processes.