Lithium carbonate (Li 2 CO 3) stands as a pivotal raw material within the lithium-ion battery industry. Hereby, we propose a solid-liquid reaction crystallization method, employing powdered sodium carbonate instead of its solution, which minimizes the water introduction and markedly elevates one-step lithium recovery rate.
In contrast to the conventional understanding, lithium crystallization takes multi-step pathways mediated by interfacial lithium atoms with disordered and random-closed-packed configurations as intermediate steps, which give rise to the energy barrier of crystallization.
LiOH-mediated crystallization regulating strategy enhancing electrochemical performance and structural stability of SiO anodes for lithium-ion batteries He, Z., Xu, Z., Long, Y. et al. LiOH-mediated crystallization regulating strategy enhancing electrochemical performance and structural stability of SiO anodes for lithium-ion batteries.
Its use as an electrode in closed, high-energy batteries would then appear doomed to failure as all known electrolytes (liquid or solid) will react with lithium metal through chemical and/or electrochemical means to create new materials inside the battery.
A critical requirement arises for high-quality battery-grade lithium carbonate within the industrial settings. Currently, the main method for producing lithium carbonate is reaction crystallization.
The deposited Li atoms are accommodated by this interfacial amorphous lithium layer (Figs. 1 b and 2b) and, as the Li deposition continues, crystalize into BCC-Li metal through two pathways. In one pathway, the deposited Li goes through disordered-Li and then transforms into the crystalline BCC-Li.