![]() |
ИСТИНА |
Войти в систему Регистрация |
ИПМех РАН |
||
O3-NaFe1-x-yNixMnyO2 (111NFM, 121NFM, 112NFM and 211NFM) materials were synthesized by co-precipitation method followed by annealing of Fe1-x-yNixMnyCO3 and Na2CO3 precursors. Electrodes demonstrate 120-130 mAh/g of reversible capacity (fig.1). Features of Ni2+/3+/4+ and Fe3+/4+ redox process during charge-discharge were studied by means of operando X-ray diffraction, X-ray absorption and low temperature Mössbauer spectroscopy.