Lithium substituted poly(amic acid) as a water-soluble anode binder for high-temperature pre-lithiation

Autor:	Tianyu Zhu, Thanh-Nhan Tran, Chen Fang, Dongye Liu, Subramanya P. Herle, Jie Guan, Girish Gopal, Ajey Joshi, James Cushing, Andrew M. Minor, Gao Liu
Rok vydání:	2022
Předmět:	Engineering Energy Renewable Energy Sustainability and the Environment Chemical Sciences Energy Engineering and Power Technology Electrical and Electronic Engineering Physical and Theoretical Chemistry
Zdroj:	Journal of Power Sources. 521:230889
ISSN:	0378-7753
Popis:	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.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7248812bbe29105fee36e0e65be12e16 https://doi.org/10.1016/j.jpowsour.2021.230889 Zobrazit plný text záznamu Full Text from ScienceDirect