公开(公告)号：US20150079484A1

公开(公告)日：2015-03-19

申请号：US14028559

申请日：2013-09-17

Applicant: U.S. Army Research Laboratory, Attn: RDRL-LOC-I

Inventor： Arthur von Wald Cresce ,  Kang Conrad Xu

IPC: H01M10/0567 ,  H01M10/0525

CPC classification number: H01M10/0567 ,  H01M10/0525 ,  H01M10/0568 ,  H01M10/0569

Abstract: The present disclosure relates to additives for electrolytes and preparation of aluminum-based, silicon-based, and bismuth-based additive compounds that can be used as additives or solutes in electrolytes and test results in various electrochemical devices. The inclusion of these aluminum, silicon, and bismuth compounds in electrolyte systems can enable rechargeable chemistries at high voltages that are otherwise unsuitable with current electrolyte technologies. These compounds are so chosen because of their beneficial effect on the interphasial chemistries formed at high potentials, such as 5.0 V class cathodes for Li-ion chemistries. The application of these compounds goes beyond Li-ion battery technology and covers any electrochemical device that employs electrolytes for the benefit of high energy density resultant from high operating voltages.

Abstract translation: 本公开涉及电解质添加剂和可用作电解质中的添加剂或溶质的铝基，硅基和铋基添加剂化合物的制备以及各种电化学装置中的测试结果。 将这些铝，硅和铋化合物包含在电解质体系中可以使得在目前的电解质技术中不适合的高电压下的可充电化学物质。 这些化合物是如此选择的，因为它们对在高电位下形成的相互间的化学反应有利，例如用于锂离子化学的5.0V级阴极。 这些化合物的应用超出了锂离子电池技术，并且覆盖了任何使用电解质的电化学装置，以从高工作电压得到高能量密度。