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Page 6 of 6 Glushenkov. Energy Mater 2023;3:300010 https://dx.doi.org/10.20517/energymater.2022.70

This Research Highlight lags behind the two original commentaries by approximately two years. Therefore,
it is interesting to reflect on what has changed since those were published. The notable developments
include a larger number of start-ups and established commercial companies venturing in the space of
[6]
[5]
Na-ion batteries. In addition to Faradion , Tiamat and Novosis already discussed, Na-ion cells are being
worked on by HiNa Battery (layered oxide chemistry) , Altris and Natron Energy (Prussian blue
[7]
[8,9]
analogues) . It is interesting to note that the realisation that Na-ion cells can be subdivided into different
classes, for example, “higher energy content” cells and “high power cells”, firms up. In particular, Tiamat
aims to add “higher energy content cells” as a separate product to their more established fast-charge
batteries under development. Finally, it is newsworthy to highlight the direct participation of a major
battery company in this space; China-based Contemporary Amperex Technology Co. Limited (CATL) has
[10]
joined the ranks of emerging Na-ion battery manufacturers in 2021 . The commercialisation of Na-ion
batteries is clearly in full swing, and it will be very interesting to follow up with further developments.

DECLARATIONS
Author’ contributions
The author contributed solely to the article.

Availability of data and materials
Not applicable.

Financial support and sponsorship
None.

Conflicts of interest
The author declared that there were no conflicts of interest.

Ethical approval and consent to participate
Not applicable.

Consent for publication
Not applicable.

Copyright
© The Author(s) 2023.

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