Towards Ni-rich layered oxides cathodes with low Li/Ni intermixing by mild molten-salt ion exchange for lithium-ion batteries was written by Luo, Yu-hong;Pan, Qing-lin;Wei, Han-xin;Huang, Ying-de;Tang, Lin-bo;Wang, Zhen-yu;He, Zhen-jiang;Yan, Cheng;Mao, Jing;Dai, Ke-hua;Zhang, Xia-hui;Zheng, Jun-chao. And the article was included in Nano Energy in 2022.Synthetic Route of ClLi The following contents are mentioned in the article:
In the conventional synthesis of layered transition metal oxides, the high-temperature process not only causes lithium loss due to evaporation, but also facilitate the inevitable cation mixing of Li+ and Ni2+, resulting in severe shifts in their stoichiometric ratios and thus structure instability. Herein, we report a universal ion-exchange method to prepared Ni-rich layered oxide materials LiNi0.85Co0.06Mn0.09O2 (NCM85) with low Li/Ni intermixing at a low reaction temperature of 300C, where sodium-based layered oxides (NaNi0.85Co0.06Mn0.09O2) were used as precursors for ion exchange with Li+ ion in lithium molten salts. By studying the effects of ion-exchange time and addnl. heat treatment on the structure and performance of the layered oxide materials, we established the processing-structure-performance relationships for Ni-rich NCM85 materials. Moreover, we further demonstrated the universality of this ion-exchange method and processing-structure-performance relationships for other layered oxide materials including LiNi0. 5Co0.2Mn0.3O2 and LiNi0.5Mn0.5O2. We anticipate that such universal method of ion exchange and universal processing-structure-performance relationships can guide the rational design and synthesis of other layered oxide materials for lithium-ion batteries. This study involved multiple reactions and reactants, such as Lithium chloride (cas: 7447-41-8Synthetic Route of ClLi).
Lithium chloride (cas: 7447-41-8) belongs to organic chlorides. Organochlorines are organic compounds having multiple chlorine atoms. They were the first synthetic pesticides that were used in agriculture. They are resistant to most microbial and chemical degradations.While alkyl bromides and iodides are more reactive, alkyl chlorides tend to be less expensive and more readily available. Alkyl chlorides readily undergo attack by nucleophiles.Synthetic Route of ClLi
Referemce:
Chloride – Wikipedia,
Chlorides – an overview | ScienceDirect Topics