磷酸二氢锂是一种无机化合物，属于磷酸二氢盐，由锂、磷、氧、氢组成，化学式为LiH2PO4。磷酸二氢锂可用于锂离子电池材料的制造。[1][2]
磷酸和氢氧化锂反应，溶液pH为2.0~2.8时，即得到磷酸二氢锂：[3]
- H3PO4 + LiOH → LiH2PO4
磷酸锂和磷酸的反应也能得到磷酸二氢锂。[4]
- ^ Yongzhi Chen, Lihua Wang, Hao He, Jian Li, Yimin Li, Rutie Liu, Dongyang Li, Zheyu He. Preparation of FePO4 and LiH2PO4 from cathode mixture materials of scrapped LiFePO4 batteries. Journal of Materials Science: Materials in Electronics. 2020-03, 31 (5): 4083–4091 [2020-04-19]. ISSN 0957-4522. doi:10.1007/s10854-020-02955-1 （英语）.
- ^ N. Recham, L. Dupont, M. Courty, K. Djellab, D. Larcher, M. Armand, J.-M. Tarascon. Ionothermal Synthesis of Tailor-Made LiFePO 4 Powders for Li-Ion Battery Applications. Chemistry of Materials. 2009-03-24, 21 (6): 1096–1107 [2020-04-19]. ISSN 0897-4756. doi:10.1021/cm803259x （英语）.
- ^ 姚开林, 金鹏, 霍立明, 涂明江, 黄春莲, 张春明. 电池级磷酸二氢锂的制备方法, 2008. CN 101269806 A.
- ^ 吴建江. 磷酸锂塔皮制备磷酸二氢锂工艺探讨. 新疆有色金属, 2012(S1):124-125.
