All-solid-state sodium batteries using amorphous TiS3 electrode with high capacity

JOURNAL OF POWER SOURCES

卷:275

Article

Tanibata, Naoto¹  Matsuyama, Takuya¹  Hayashi, Akitoshi¹  Tatsumisago, Masahiro¹ 

[1] Osaka Prefecture Univ, Grad Sch Engn, Dept Appl Chem, Naka Ku, Sakai, Osaka 5998531, Japan

关键词: All-solid-state battery;    Sodium battery;    Amorphous electrode;    TiS3;    Sulfide;   

DOI  :  10.1016/j.jpowsour.2014.10.193

来源: Elsevier

【 摘 要 】

All-solid-state sodium cells (Na15Sn4/Na3PS4 glass-ceramic/a-TiS3) showed a high capacity of over 300 mAh per gram of TiS3 at the 1st dischargecharge cycle. The capacity was gradually decreased to 100 mAh g(-1) at the 10th cycle. Nyquist plots of the cell showed that the resistance of the alpha-TiS3 composite electrode became larger with the dischargecharge cycles. The XRD patterns of the alpha-TiS3 composite electrode before and after the 1st cycle indicated that the alpha-TiS3 was still amorphous during dischargecharge process. The Raman bands attributable to alpha-TiS3 were also observed after the 1st cycle. The SEM images and EDX mapping indicated that the alpha-TiS3 particles aggregated in the electrode after the 10th cycle. The all-solid-state sodium cell using alpha-TiS3 composite electrode with acetylene black as a conductive additive showed the high capacity of over 300 mAh g(-1) for 5 cycles. (C) 2014 Elsevier B.V. All rights reserved.

【 授权许可】

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