Nanoscale Protection Layers To Mitigate Degradation in High-Energy Electrochemical Energy Storage Systems

Accounts of Chemical Research
Chuan-Fu LinGary W Rubloff

Abstract

In the pursuit of energy storage devices with higher energy and power, new ion storage materials and high-voltage battery chemistries are of paramount importance. However, they invite-and often enhance-degradation mechanisms, which are reflected in capacity loss with charge/discharge cycling and sometimes in safety problems. Degradation mechanisms are often driven by fundamentals such as chemical and electrochemical reactions at electrode-electrolyte interfaces, volume expansion and stress associated with ion insertion and extraction, and profound inhomogeneity of electrochemical behavior. While it is important to identify and understand these mechanisms at some reasonable level, it is even more critical to design strategies to mitigate these degradation pathways and to develop means to implement and validate the strategies. A growing set of research highlights the mitigation benefits achievable by forming thin protection layers (PLs) intentionally created as artificial interphase regions at the electrode-electrolyte interface. These advances illustrate a promising-perhaps even generic-pathway for enabling higher-energy and higher-voltage battery configurations. In this Account, we summarize examples of such PLs that serve as m...Continue Reading

References

Jul 26, 2008·Nature Nanotechnology·Candace K ChanYi Cui
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May 8, 2010·Chemphyschem : a European Journal of Chemical Physics and Physical Chemistry·Leah A RileyAnne C Dillon
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Citations

Jun 30, 2018·Chemical Society Reviews·Longlong WangLiquan Chen
Oct 16, 2019·Nature Nanotechnology·Yang HeChongmin Wang
Apr 22, 2020·ACS Applied Materials & Interfaces·R Blake NuwayhidKeith E Gregorczyk
Jun 30, 2018·ACS Applied Materials & Interfaces·Yang WangSang Bok Lee

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