NDLI: Molecular engineering towards safer lithium-ion batteries: a highly stable and compatible redox shuttle for overcharge protection

Content Provider	Royal Society of Chemistry (RSC)
Author	Redfern, Paul C. Amine, Khalil Zhang, Lu Zhang, Zhengcheng Curtiss, Larry A.
Copyright Year	2012
Abstract	Overcharge abuse is one of the most common and dangerous safety issues with state-of-the-art lithium-ion batteries. Thus, incorporation of overcharge prevention into the lithium-ion battery pack is key to its practical application. Redox shuttle molecules that can be reversibly oxidized and reduced at specific potentials (redox potential) provide an effective and economic method to prevent overcharge abuse for lithium-ion batteries. We have developed a novel oligo(ethylene glycol)-functionalized redox shuttle, 2,5-di-tert-butyl-1,4-bis(2-methoxyethoxy)benzene (DBBB), that is not only capable of providing efficient and long-lasting overcharge protection to lithium-ion batteries (capable of withstanding over 180 cycles of 100% overcharge at the C/2 rate), but is also compatible with the state-of-the-art lithium-ion cell system. Density functional theory calculations provided an understanding of the stability properties of this new redox shuttle.
Starting Page	8204
Ending Page	8207
Page Count	4
File Format	HTM / HTML PDF
ISSN	17545692
Volume Number	5
Issue Number	8
Journal	Energy & Environmental Science
DOI	10.1039/c2ee21977h
Language	English
Publisher	Royal Society of Chemistry
Access Restriction	Open
Subject Keyword	Redox Lithium-ion battery Oligomer Ethylene glycol Benzene Density functional theory
Content Type	Text
Resource Type	Article
Subject	Environmental Chemistry Pollution Renewable Energy, Sustainability and the Environment Nuclear Energy and Engineering

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