Journal article
Strategies for Building Robust Traffic Networks in Advanced Energy Storage Devices: A Focus on Composite Electrodes
Advanced materials (Weinheim), Vol.31(6), pp.e1804204-n/a
02/08/2019
Handle:
https://hdl.handle.net/2376/105458
PMID: 30556176
Abstract
The charge transport system in an energy storage device (ESD) fundamentally controls the electrochemical performance and device safety. As the skeleton of the charge transport system, the “traffic” networks connecting the active materials are primary structural factors controlling the transport of ions/electrons. However, with the development of ESDs, it becomes very critical but challenging to build traffic networks with rational structures and mechanical robustness, which can support high energy density, fast charging and discharging capability, cycle stability, safety, and even device flexibility. This is especially true for ESDs with high‐capacity active materials (e.g., sulfur and silicon), which show notable volume change during cycling. Therefore, there is an urgent need for cost‐effective strategies to realize robust transport networks, and an in‐depth understanding of the roles of their structures and properties in device performance. To address this urgent need, the primary strategies reported recently are summarized here into three categories according to their controllability over ion‐transport networks, electron‐transport networks, or both of them. More specifically, the significant studies on active materials, binders, electrode designs based on various templates, pore additives, etc., are introduced accordingly. Finally, significant challenges and opportunities for building robust charge transport system in next‐generation energy storage devices are discussed.
The charge‐transport network structures serving as conduction pathways for ions/electrons play an increasingly critical role in next‐generation energy‐storage devices. They fundamentally control the overall electrochemical performance, device safety, and flexibility. The tremendous efforts on composite electrodes, from the perspective of transport network structures, are summarized and discussed.
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Details
- Title
- Strategies for Building Robust Traffic Networks in Advanced Energy Storage Devices: A Focus on Composite Electrodes
- Creators
- Yu Wang - Washington State UniversityXuewei Fu - Washington State UniversityMin Zheng - Washington State UniversityWei‐Hong Zhong - Washington State UniversityGuozhong Cao - University of Washington
- Publication Details
- Advanced materials (Weinheim), Vol.31(6), pp.e1804204-n/a
- Academic Unit
- Chemical Engineering and Bioengineering, School of; Mechanical and Materials Engineering, School of
- Number of pages
- 29
- Grant note
- National Science Foundation (NSF‐1463616)
- Identifiers
- 99900546886301842
- Language
- English
- Resource Type
- Journal article