Calcium Molybdenum Bronze as a Stable High-Capacity Cathode Material for Calcium-Ion Batteries

Munseok S. Chae, Hunho H. Kwak, Seung Tae Hong

Research output: Contribution to journalArticlepeer-review

31 Scopus citations


Calcium-ion batteries (CIBs) are gaining increasing attention due to their theoretically high capacity, owing to the divalency of calcium, and low cost. However, only a few calcium insertion electrode materials are reported, and most of them exhibit low capacity or poor cyclability in nonaqueous electrolytes. Herein, we demonstrated high-performance calcium molybdenum bronze Ca0.13MoO3·(H2O)0.41 as a potential CIB cathode material at room temperature, with a reversible discharge capacity of 192 mAh g-1 at 86 mA g-1, an average voltage of 2.4 V (vs Ca/Ca2+), and excellent cyclability. This work provides the feasibility of developing high-capacity CIB cathode materials.

Original languageEnglish
Pages (from-to)5107-5112
Number of pages6
JournalACS Applied Energy Materials
Issue number6
StatePublished - 22 Jun 2020
Externally publishedYes

Bibliographical note

Funding Information:
This work was supported by the Samsung Research Funding & Incubation Center of Samsung Electronics under Project SRFC-MA1601-04.

Publisher Copyright:
Copyright © 2020 American Chemical Society.


  • calcium-ion battery
  • cathode material
  • intercalation
  • molybdenum bronze
  • nonaqueous electrolyte


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