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Title: Investigating the Complex Chemistry of Functional Energy Storage Systems: The Need for an Integrative, Multiscale (Molecular to Mesoscale) Perspective

Journal Article · · ACS Central Science
 [1];  [1];  [2];  [3];  [1];  [3];  [2];  [4];  [4];  [5]
  1. Department of Chemistry, Stony Brook University, Stony Brook, New York 11794, United States
  2. Department of Chemical Engineering, Columbia University, New York, New York 10027, United States
  3. Energy Sciences Directorate, Brookhaven National Laboratory, Upton, New York 11973, United States
  4. Department of Chemistry, Stony Brook University, Stony Brook, New York 11794, United States, Department of Materials Science and Engineering, Stony Brook University, Stony Brook, New York 11794, United States
  5. Department of Chemistry, Stony Brook University, Stony Brook, New York 11794, United States, Energy Sciences Directorate, Brookhaven National Laboratory, Upton, New York 11973, United States, Department of Materials Science and Engineering, Stony Brook University, Stony Brook, New York 11794, United States

Electric energy storage systems such as batteries can significantly impact society in a variety of ways, including facilitating the widespread deployment of portable electronic devices, enabling the use of renewable energy generation for local off grid situations and providing the basis of highly efficient power grids integrated with energy production, large stationary batteries, and the excess capacity from electric vehicles. A critical challenge for electric energy storage is understanding the basic science associated with the gap between the usable output of energy storage systems and their theoretical energy contents. The goal of overcoming this inefficiency is to achieve more useful work $(w)$ and minimize the generation of waste heat $(q)$. Minimization of inefficiency can be approached at the macro level, where bulk parameters are identified and manipulated, with optimization as an ultimate goal. However, such a strategy may not provide insight toward the complexities of electric energy storage, especially the inherent heterogeneity of ion and electron flux contributing to the local resistances at numerous interfaces found at several scale lengths within a battery. Thus, the ability to predict and ultimately tune these complex systems to specific applications, both current and future, demands not just parametrization at the bulk scale but rather specific experimentation and understanding over multiple length scales within the same battery system, from the molecular scale to the mesoscale. Herein, we provide a case study examining the insights and implications from multiscale investigations of a prospective battery material, Fe3O4.

Research Organization:
Energy Frontier Research Centers (EFRC) (United States). Center for Mesoscale Transport Properties (m2M)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES); National Science Foundation (NSF)
Grant/Contract Number:
SC0012673; DGE-11-44155
OSTI ID:
1254877
Alternate ID(s):
OSTI ID: 1387841
Journal Information:
ACS Central Science, Journal Name: ACS Central Science Vol. 2 Journal Issue: 6; ISSN 2374-7943
Publisher:
American Chemical Society (ACS)Copyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 33 works
Citation information provided by
Web of Science

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