钢铁厂冷轧酸洗盐酸再生过程中喷雾焙烧所产生的酸洗铁红，由于热历史导致反应活性低，同时碳热固固反应温度高和固固接触还原不彻底等问题导致此工艺路线制备的磷酸铁锂的电化学活性远未充分发挥，循环容量和倍率性能不能满足电池性能需要。本研究采用催化还原和晶格畸化的化学反应控制活化、侵蚀多孔和强制细化的扩散控制活化和碳包覆及高导电铁磷化合物的原位电子电导活化技术，通过反应动力学的探究，获得活化的机理，探究多重强化机理的耦合增强效应，建立激活实施后微观结构与锂离子脱/嵌行为的内在联系。全面活化酸洗铁红，制备出高品质的LiFePO4/C的复合正极材料，实现高附加值利用。

The acid pickling iron oxide red which produced in the process of Steel cold.rolled pickling acid regeneration through spray roasting method has low reactivity, due to thermal history and high carbon hot solid-solid reaction temperature and solid-solid contact reduction are not thoroughly. Because of these problems, the electrochemical activity of LiFePO4 prepared thorough this process far into full play, circulation capacity and rate performance cannot meet the needs of the battery performance..This research adopts the catalytic reduction and lattice defects of chemical reaction to control activation, porous and refinement of forced diffusion erosion control activation and carbon coating and high conductive iron phosphorus compounds in situ electron conductance activation technology, through the study of reaction kinetics, obtain the activation mechanism, to explore the coupling of multiple strengthening mechanism of enhancement effect, establish activated after the implementation of the micro structure and lithium ion/off the inner link of.embedded behavior.To activate of acid pickling iron oxide red comprehensively , prepare the high quality of LiFePO4 / C composite cathode material, fullfil the use of high added value.