Journal
SMALL
Volume 17, Issue 6, Pages -Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/smll.202004369
Keywords
advanced chalcogen-based materials; high performance; potassium-selenium batteries; potassium-sulfur batteries; potassium-tellurium batteries
Categories
Funding
- National Key Research, Development Program of China [2019YFB2203400]
- 111 Project [B20030]
- UESTC Shared Research Facilities of Electromagnetic Wave and Matter Interaction [Y0301901290100201]
- ARC [DP200100365]
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This review discusses the recent research advances on potassium-chalcogen (S, Se, Te) batteries and their cathode materials, focusing on the development of cathode materials for four types of potassium batteries. Critical challenges for chalcogen-based electrodes in devices operation are summarized, and pragmatic strategies are proposed to solve these issues. The perspectives on designing advanced cathode materials for potassium-chalcogen batteries are provided with the goal of developing high-performance potassium storage devices.
Current great progress on potassium-chalcogen (S, Se, Te) batteries within much potential to become promising energy storage systems opens a new avenue for the rapid development of potassium batteries as a complementary option to lithium ion batteries. The discussion mainly concentrates on recent research advances of potassium-chalcogen (S, Se, Te) batteries and their corresponding cathode materials in this review. Initially, the development of cathode materials for four types of batteries is introduced, including: potassium-sulfur (K-S), potassium-selenium (K-Se), potassium-selenium sulfide (K-SexSy), and potassium-tellurium (K-Te) batteries. Next, critical challenges for chalcogen-based electrodes in devices operation are summarized. In addition, some pragmatic strategies are proposed as well to relieve the low electronic conductivity, large volumetric expansion, shuttle effect, and potassium dendrite growth. At last, the perspectives on designing advanced cathode materials for potassium-chalcogen batteries are provided with the goal of developing high-performance potassium storage devices.
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