@article{35234, author = {Tianyu Zhu and Thanh-Nhan Tran and Chen Fang and Dongye Liu and Subramanya P Herle and Jie Guan and Girish Gopal and Ajey Joshi and James Cushing and Andrew M Minor and Gao Liu}, title = {Lithium substituted poly(amic acid) as a water-soluble anode binder for high-temperature pre-lithiation}, abstract = {

Multifunctional binders hold great promise in advanced electrode designs for both fundamental research and practical utilization of lithium-ion batteries (LIBs). The reactions between Si/SiOx-dominated anodes with lithium are expected to be exothermic in principle, while the thermal tolerance along with the volume change makes high-temperature binders attractive for large scale roll-to-roll manufacturing. For instance, if a high temperature binder is also water soluble, it can be compatible with the current graphite-based anode manufacturing process. In this work, we present a water-soluble poly(amic acid)-based binder, which can withstand high temperature for industrial pre-lithiation process and effectively hold active materials together during repeated charge and discharge cycles. This lithium substituted poly(amic acid) binder (denoted as Li-Pa) can serve as a drop-in replacement for environmentally friendly electrode fabrication in large scale by providing aqueous solubility, exceptional thermal stability and mechanical flexibility.

}, year = {2022}, journal = {Journal of Power Sources}, volume = {521}, pages = {230889}, month = {02/2022}, issn = {03787753}, url = {https://linkinghub.elsevier.com/retrieve/pii/S0378775321013732}, doi = {10.1016/j.jpowsour.2021.230889}, language = {eng}, }