电源技术2017,Vol.41Issue(12):1715-1717,3.
锂电池电化学传递函数模型的建立和验证
Foundation and validation of electrochemical transfer function model of Li-ion battery
摘要
Abstract
Taking the lithium-ion battery as the object of study,a novel mathematic method to evaluate and monitor the microscopic change of the particles was proposed.Based on the pseudo two-dimension model,the PDEs achieved by mass conservation and charge conservation were set up under the assumption of uniform characteristics for the materials.The terminal voltage was divided into several parts,namely the open circuit voltage,the overpotential of the electrodes,the electrolyte potential and the internal resistance drop.The objective is to get an improved P2D model,namely a unified transfer function expression for the battery voltage.The procedure of the validation is based on the simulation contrast of comsol and the experiment with different driving cycles.关键词
锂电池/偏微分方程/伪二维模型/帕德逼近/传递函数Key words
lithium-ion battery/PDEs/P2D/Padé approximation/transfer function分类
信息技术与安全科学引用本文复制引用
路金玲,张希,靳伟,周轩..锂电池电化学传递函数模型的建立和验证[J].电源技术,2017,41(12):1715-1717,3.基金项目
国家自然科学基金项目(51277121) (51277121)