Sol–gel synthesis of sodium and lithium based materials

Hildebrandt, Sandra; Eva, Andreas; Komissinskiy, Philipp; Fasel, Claudia; Fritsch, I.; Alff, Lambert

doi:10.1007/s10971-012-2789-4

Cited by 5 publications

(1 citation statement)

References 38 publications

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“…24 No additional peaks or reaction take place when calcination temperature increases until 900 • C. However, a weight loss of 5% still occurs, which may be related to the evaporation of Na 2 O. 25 Then, although the TGA curve shows that the weight does not change from 900 to 1000 • C, but the DSC curve exhibits some small exothermic peaks as shown in Fig. 2b.…”

Section: Resultsmentioning

confidence: 95%

Effect of Calcination Temperature on a P-type Na_0.6Mn_0.65Ni_0.25Co_0.10O₂Cathode Material for Sodium-Ion Batteries

Nguyen

Kim

Choi

et al. 2016

J. Electrochem. Soc.

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Unstable and deficient supplies of lithium resources have led to the development of alternative battery systems such as sodium-ion batteries. Herein, P-type Na0.6Mn0.65Ni0.25Co0.10O2 cathode materials were synthesized by a co-precipitation and solid-state reaction method. When the calcination temperature was changed from 700 to 1000°C, Na0.6Mn0.65Ni0.25Co0.10O2 had a different morphology and crystalline structure; however, a P3-type structure was formed only at 700°C, and P2-type structured cathodes could be obtained at 800, 900, and 1000°C. Their electrochemical performances were evaluated with 2032 coin-type half cells. Among them, the P2-type cathode calcinated at 900°C, exhibited a high specific discharge capacity of 148 mAh g−1, and a stable cycling performance at a 0.2 C rate for 150 cycles.

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Section: Resultsmentioning

confidence: 95%