%0 Journal Article
%A Tianyu Zhu
%A Thanh-Nhan Tran
%A Chen Fang
%A Dongye Liu
%A Subramanya P Herle
%A Jie Guan
%A Girish Gopal
%A Ajey Joshi
%A James Cushing
%A Andrew M Minor
%A Gao Liu
%B Journal of Power Sources
%D 2022
%G eng
%P 230889
%R 10.1016/j.jpowsour.2021.230889
%T Lithium substituted poly(amic acid) as a water-soluble anode binder for high-temperature pre-lithiation
%U https://linkinghub.elsevier.com/retrieve/pii/S0378775321013732
%V 521
%8 02/2022
%! Journal of Power Sources
%X <p><span>Multifunctional binders hold great promise in advanced&nbsp;<a class="topic-link" title="Learn more about electrode designs from ScienceDirect's AI-generated Topic Pages" href="https://www.sciencedirect.com/topics/chemistry/electrode-design">electrode designs</a>&nbsp;for both fundamental research and practical utilization of lithium-ion batteries (LIBs). The reactions between Si/SiO</span><sub><span>x</span></sub><span>-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&nbsp;<a class="topic-link" title="Learn more about water soluble from ScienceDirect's AI-generated Topic Pages" href="https://www.sciencedirect.com/topics/chemistry/water-soluble">water soluble</a>, 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.</span></p>