Advanced Porous Electrode Materials and Structures
A special issue of Materials (ISSN 1996-1944). This special issue belongs to the section "Porous Materials".
Deadline for manuscript submissions: closed (20 September 2022) | Viewed by 369
Special Issue Editor
Interests: energy storage; lithium-ion batteries; electrode manufacturing; electrochemical mechanics
Special Issues, Collections and Topics in MDPI journals
Special Issue Information
Dear Colleagues,
Conductive and semi-conductive porous materials, either monolithic, such as 3D nanoporous metals, or composite, such as Li-ion battery electrodes, are essential components of electrochemical energy storage and conversion systems. Both the magnitude and the porous distribution (ordered, random, hierarchical, or graded) of electrode porosity can make a significant difference in the performance of electrochemical systems. Pores in the electrode provide a space to fill with liquid, polymer, or solid electrolytes, which becomes a continuous path for the transportation of ionic charge carriers.
On the one hand, pores create a high interfacial area between electrode and electrolyte that makes high-rate electrochemical reactions possible. The rate of ion transport is affected by the tortuosity of the porous structure, which in turn influences the charge/discharge rate of batteries and supercapacitors or the charge–strain response rate of electrochemical actuators. On the other hand, pores in the electrodes may reduce the electric conductivity and mechanical integrity of the solid phase, and also reduce the volumetric energy density of the device. Dedicated porous morphology can be synthesized by nano/micro-templating, self-organization, etc., while only some methods may be suitable for industry scale up. A trade-off has to be made to balance the benefits of advanced porous materials/structures and the feasibility of their application in practice.
This Special Issue focuses on how porous electrode materials and porous structures can alter performance in electrodes and electrochemical systems, the mechanisms behind the improvements and strategies for optimization, and how to manufacture these porous materials and structures at both the lab and industrial scale; for example, the enhancement of rate performance using a porous structure for fast charging in electrodes.
Dr. Chuan Cheng
Guest Editor
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Keywords
- porous electrode materials
- nanoporous metals and transitional metal oxides
- tortuosity of porous electrodes and structures
- fast charging
- ion transport kinetics
- electrochemical energy storage and conversion
- hierarchical and graded porous structures
- self-ordered nano/microporous structures
- nano/micro templating, dealloying, and anodization
- electrochemical actuators and Li-ion batteries
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