Glucose-Treated Manganese Hexacyanoferrate for Sodium-Ion Secondary Battery

Energies

Yutaka Moritomo¹  Kensuke Goto¹  Takayuki Shibata¹ 

[1] Graduate School of Pure and Applied Science, University of Tsukuba, Tsukuba 305-8577, Japan; E-Mails:

关键词: sodium-ion secondary battery;    prussian blue analogues;    glucose treatment;    surface modification;   

DOI  :  10.3390/en8099486

来源: mdpi

【 摘 要 】

Manganese hexacyanoferrate (Mn-PBA) is a promising cathode material for sodium-ion secondary battery (SIB) with high average voltage (=3.4 V) against Na. Here, we find that the thermal decomposition of glucose modifies the surface state of Mn-PBA, without affecting the bulk crystal structure. The glucose treatment significantly improves the rate properties of Mn-PBA in SIB. The critical discharge rate increases from 1 C (as-grown) to 15 C (glucose-treated). Our observation suggests that thermal treatment is quite effective for insulating coordination polymers.

【 授权许可】

CC BY   
© 2015 by the authors; licensee MDPI, Basel, Switzerland.