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Honeycomb-Ordered Na3Ni1.5M0.5BiO6 (M = Ni, Cu, Mg, Zn) as High-Voltage Layered Cathodes for Sodium-Ion Batteries
ACS Energy Letters ( IF 22.0 ) Pub Date : 2017-11-03 00:00:00 , DOI: 10.1021/acsenergylett.7b00930 Peng-Fei Wang 1, 2 , Yu-Jie Guo 1, 2 , Hui Duan 1, 2 , Tong-Tong Zuo 1, 2 , Enyuan Hu 3 , Klaus Attenkofer 3 , Hongliang Li 4 , Xiu Song Zhao 4 , Ya-Xia Yin 1, 2 , Xiqian Yu 5 , Yu-Guo Guo 1, 2
ACS Energy Letters ( IF 22.0 ) Pub Date : 2017-11-03 00:00:00 , DOI: 10.1021/acsenergylett.7b00930 Peng-Fei Wang 1, 2 , Yu-Jie Guo 1, 2 , Hui Duan 1, 2 , Tong-Tong Zuo 1, 2 , Enyuan Hu 3 , Klaus Attenkofer 3 , Hongliang Li 4 , Xiu Song Zhao 4 , Ya-Xia Yin 1, 2 , Xiqian Yu 5 , Yu-Guo Guo 1, 2
Affiliation
Developing high-voltage layered cathodes for sodium-ion batteries (SIBs) has always been a severe challenge. Herein, a new family of honeycomb-layered Na3Ni1.5M0.5BiO6 (M = Ni, Cu, Mg, Zn) with a monoclinic superstructure has been shown to combine good Na+ (de)intercalation activity with a competitive 3.3 V high voltage. By coupling the electrochemical process with ex situ X-ray absorption spectroscopy as well as in situ X-ray diffraction, the charge compensation mechanism and structural evolution of these new cathodes are clearly investigated. Interestingly, both Ni2+/Ni3+ and Cu2+/Cu3+ participate in the redox reaction upon cycling, and the succession of single-phase, two-phase, or three-phase regions upon Na+ extraction/insertion were identified with rather good accuracy. This research strategy could provide insights into the structure–function–property relationships on a new series of honeycomb-ordered materials with the general formula Na3Ni1.5M0.5BiO6 and also serve as a bridge to guide future design of high-performance cathodes for SIBs.
中文翻译:
蜂窝订购的Na 3 Ni 1.5 M 0.5 BiO 6(M = Ni,Cu,Mg,Zn)作为钠离子电池的高压分层阴极
开发用于钠离子电池(SIB)的高压分层阴极一直是严峻的挑战。在此,已证明具有单斜超结构的蜂窝状Na 3 Ni 1.5 M 0.5 BiO 6(M = Ni,Cu,Mg,Zn)的新家族结合了良好的Na +(脱嵌)活性和有竞争力的3.3 V高压。通过将电化学过程与异位X射线吸收光谱以及原位X射线衍射相结合,可以清楚地研究这些新阴极的电荷补偿机制和结构演变。有趣的是,Ni 2+ / Ni 3+和Cu 2+ / Cu 3+参与循环时的氧化还原反应,并且在Na +提取/插入后识别单相,两相或三相区域的顺序非常准确。该研究策略可以提供对新系列通式为Na 3 Ni 1.5 M 0.5 BiO 6的蜂窝状材料的结构-功能-性能关系的深刻见解,并且还可以作为指导高性能阴极未来设计的桥梁用于SIB。
更新日期:2017-11-05
中文翻译:
蜂窝订购的Na 3 Ni 1.5 M 0.5 BiO 6(M = Ni,Cu,Mg,Zn)作为钠离子电池的高压分层阴极
开发用于钠离子电池(SIB)的高压分层阴极一直是严峻的挑战。在此,已证明具有单斜超结构的蜂窝状Na 3 Ni 1.5 M 0.5 BiO 6(M = Ni,Cu,Mg,Zn)的新家族结合了良好的Na +(脱嵌)活性和有竞争力的3.3 V高压。通过将电化学过程与异位X射线吸收光谱以及原位X射线衍射相结合,可以清楚地研究这些新阴极的电荷补偿机制和结构演变。有趣的是,Ni 2+ / Ni 3+和Cu 2+ / Cu 3+参与循环时的氧化还原反应,并且在Na +提取/插入后识别单相,两相或三相区域的顺序非常准确。该研究策略可以提供对新系列通式为Na 3 Ni 1.5 M 0.5 BiO 6的蜂窝状材料的结构-功能-性能关系的深刻见解,并且还可以作为指导高性能阴极未来设计的桥梁用于SIB。