First Step towards Calcium Batteries

  • Author: ChemistryViews.org
  • Published: 17 June 2018
  • Copyright: Wiley-VCH Verlag GmbH & Co. KGaA
  • Source / Publisher: Dalton Transactions/Royal Society of Chemistry
  • Associated Societies: Royal Society of Chemistry (RSC), UK
thumbnail image: First Step towards Calcium Batteries

Lithium-ion batteries are commonly used but have limited potential for further development. Using multivalent metals such as Mg or Ca could improve battery capacities. However, compared with Li, it is much more difficult to find electrode materials that can reversibly take up and release these metal ions. So far, there has been no proof-of-concept for a reversible Ca battery.


Carlos Frontera, M. Rosa Palacín, Institut de Ciència de Materials de Barcelona (ICMAB-CSIC), Spain, and colleagues have, for the first time, achieved the electrochemical oxidation of a transition metal oxide through calcium extraction. This process could provide a way towards a proof-of-concept calcium battery.


The team used a 1D material to improve cation movement along the chains, namely, 1D-Ca3Co2O6, and prepared electrodes by combining this compound with carbon black and polyvinylidene fluoride (PVDF). As an electrolyte, the team used Ca(BF4)2 dissolved in a mixture of ethylene carbonate and propylene carbonate.


The researchers found that Ca2+ ions can be extracted from 1D-Ca3Co2O6 in electrochemical experiments and that this redox process is partially reversible. According to the team, these results could help with the development of other 1D electrode materials for batteries based on multivalent metals.


 

Article Views: 752

Sign in Area

Please sign in below

Additional Sign In options

Please note that to comment on an article you must be registered and logged in.
Registration is for free, you may already be registered to receive, e.g., the newsletter. When you register on this website, please ensure you view our terms and conditions. All comments are subject to moderation.

Article Comments - To add a comment please sign in

Bookmark and Share

If you would like to reuse any content, in print or online, from ChemistryViews.org, please contact us first for permission. more


CONNECT:

ChemistryViews.org on Facebook

ChemistryViews.org on Twitter ChemistryViews.org on YouTube ChemistryViews.org on LinkedIn Sign up for our free newsletter


A product of ChemPubSoc Europe (16 European Chemical Societies)and Wiley-VCH