Department of Energy Science and Engineering
Battery Materials Discovery Laboratory
1. Journal Articles
Crystal-Water-Free Potassium Vanadium Bronze (K0.5V2O5) as a Cathode Material for Ca-Ion Batteries
- Title
- Crystal-Water-Free Potassium Vanadium Bronze (K0.5V2O5) as a Cathode Material for Ca-Ion Batteries
- Author(s)
- Purbarani, Meladia Elok ; Hyoung, Jooeun ; Hong, Seung-Tae
- Issued Date
- 2021-08
- Citation
- ACS Applied Energy Materials, v.4, no.8, pp.7487 - 7491
- Type
- Article
- Author Keywords
- calcium vanadium bronze ; calcium-ion batteries ; cathode material ; intercalation ; potassium vanadium bronze
- Keywords
- Calcium ; Calcium compounds ; Cathode materials ; High energy densities ; Ion batteries ; Potassium ions ; Reversible capacity ; Vanadium bronze ; Cathodes ; Chromium compounds ; Cost effectiveness ; Crystals ; Electric discharges ; Ions ; Potassium ; Secondary batteries ; Vanadium ; Crystal waters ; Discharge capacities ; High capacity
- ISSN
- 2574-0962
- Abstract
- The research to discover a suitable cathode material for calcium-ion batteries (CIBs) remains challenging, despite their potential advantages of high energy density and cost-effectiveness. Herein, we report K0.5V2O5 as a cathode material for CIBs. During the initial charging of the electrode, potassium ions were replaced with 0.12 Ca. The calcium-exchanged electrode exhibited a reversible discharge capacity of ∼100 mAh g-1 at 0.1 C rate at room temperature with an average voltage of ∼3.0 V (vs Ca/Ca2+). The reversible capacity is higher than any reported cathode materials without crystal water, demonstrating the feasibility of further development of high-capacity crystal-water-free CIB cathode materials. ©
- Publisher
- American Chemical Society
- Related Researcher
-
-
Hong, Seung-Tae
- Research Interests Magnesium; calcium; and zinc ion batteries; lithium all-solid-state batteries; Inorganic materials discovery; Solid state chemistry; Crystallography; Mg; Ca; Zn 이온 이차전지; 리튬 전고체전지; 신 무기재료 합성; 고체화학; 결정화학
-
- Files in This Item:
-
There are no files associated with this item.
- Appears in Collections:
- Department of Energy Science and Engineering Battery Materials Discovery Laboratory 1. Journal Articles
Items in Repository are protected by copyright, with all rights reserved, unless otherwise indicated.