Lithium insertion in Sn-P and Sn-B-P oxide glasses
Konferensbidrag (offentliggjort, men ej förlagsutgivet), 2000

The behaviour of electrodes based on Sn2P2O7 and Sn2BPO6 glasses during cycling were characterized with diffuse IR reflectance. By removing the electrodes from the half-cells at different stages of the electrochemical cycling it was possible to follow the development of the glass structures during lithium insertion and extraction. It was found that the local network structure around the phosphate groups in the glass experience structural changes by the lithium insertion. These changes are not fully recovered by lithium extraction during the first cycle and are likely related to the initial irreversible loss of capacitance of the electrodes.

Electrodes

Glasses

Infrared spectroscopy

Lithium ion batteries

Författare

Cecilia Gejke

Chalmers, Teknisk fysik, Kondenserade materiens fysik

Ezio Zanghellini

Chalmers, Teknisk fysik, Kondenserade materiens fysik

Lars Börjesson

Chalmers, Teknisk fysik, Kondenserade materiens fysik

L. Fransson

K. Edström

Lithium Batteries. Proceedings of the International Symposium (Electrochemical Society Proceedings)

0161-6374 (ISSN)

Vol. 99-25 144-149.

Ämneskategorier

Oorganisk kemi

Fysikalisk kemi

Annan materialteknik

Den kondenserade materiens fysik