(Battery Division Student Research Award sponsored by Mercedes-Benz Research & Development) Solution-processable closo-borate Electrolyte for all-solid-state Sodium–ion Batteries

AbstractRechargeable solid-state sodium-ion batteries (SSSBs) hold great promise for safer and more energy-dense energy storage. However, the poor electrochemical stability between current sulfide-based solid electrolytes and high-voltage oxide cathodes has limited their long-term cycling performance and practicality. Here, we report the discovery of the ion conductor Na3-xY1-xZrxCl6 (NYZC) that is both electrochemically stable (up to 3.8 V vs. Na/Na+) and chemically compatible with oxide cathodes. Its high ionic conductivity of 6.6 × 10−5 S cm−1 at ambient temperature, several orders of magnitude higher than oxide coatings, is attributed to abundant Na vacancies and cooperative MCl6 rotation, resulting in an extremely low interfacial impedance. A SSSB comprising a NaCrO2 + NYZC composite cathode, Na3PS4 electrolyte, and Na-Sn anode exhibits an exceptional first-cycle Coulombic efficiency of 97.1% at room temperature and can cycle over 1000 cycles with 89.3% capacity retention at 40 °C. These findings highlight the immense potential of halides for SSSB applications.

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Na3.12Fe2.44(P2O7)2/multi-walled carbon nanotube composite as a cathode material for sodium-ion batteries

Journal of Materials Chemistry A ◽

10.1039/c5ta03127c ◽

2015 ◽

Vol 3 (33) ◽

pp. 17224-17229 ◽

Cited By ~ 53

Author(s):

Yubin Niu ◽

Maowen Xu ◽

Chuanjun Cheng ◽

ShuJuan Bao ◽

Junke Hou ◽

...

Keyword(s):

Carbon Nanotube ◽

Solid State ◽

Cathode Material ◽

Solid State Reaction ◽

Sodium Ion ◽

Sodium Ion Batteries ◽

Multi Walled Carbon Nanotube ◽

Carbon Nanotube Composite

Na3.12Fe2.44(P2O7)2/multi-walled carbon nanotube (MWCNT) composite was fabricated by a solid state reaction and was further used to fabricate a cathode for sodium-ion batteries.

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Probing Solid–Solid Interfacial Reactions in All-Solid-State Sodium-Ion Batteries with First-Principles Calculations

Chemistry of Materials ◽

10.1021/acs.chemmater.7b04096 ◽

2017 ◽

Vol 30 (1) ◽

pp. 163-173 ◽

Cited By ~ 67

Author(s):

Hanmei Tang ◽

Zhi Deng ◽

Zhuonan Lin ◽

Zhenbin Wang ◽

Iek-Heng Chu ◽

...

Keyword(s):

Solid State ◽

First Principles ◽

Interfacial Reactions ◽

Sodium Ion ◽

Sodium Ion Batteries ◽

First Principles Calculations

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A novel PMA/PEG-based composite polymer electrolyte for all-solid-state sodium ion batteries

Nano Research ◽

10.1007/s12274-018-2144-3 ◽

2018 ◽

Vol 11 (12) ◽

pp. 6244-6251 ◽

Cited By ~ 15

Author(s):

Xuejing Zhang ◽

Xingchao Wang ◽

Shuang Liu ◽

Zhanliang Tao ◽

Jun Chen

Keyword(s):

Solid State ◽

Polymer Electrolyte ◽

Sodium Ion ◽

Composite Polymer Electrolyte ◽

Sodium Ion Batteries ◽

Composite Polymer

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Sodium Ion Batteries: Toward High Energy Density All Solid‐State Sodium Batteries with Excellent Flexibility (Adv. Energy Mater. 12/2020)

Advanced Energy Materials ◽

10.1002/aenm.202070055 ◽

2020 ◽

Vol 10 (12) ◽

pp. 2070055

Author(s):

Yu Yao ◽

Zhenyao Wei ◽

Haiyun Wang ◽

Huijuan Huang ◽

Yu Jiang ◽

...

Keyword(s):

Solid State ◽

Energy Density ◽

High Energy ◽

Sodium Ion ◽

High Energy Density ◽

Sodium Ion Batteries ◽

Sodium Batteries ◽

Energy Mater

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Flexible Quasi-Solid-State Sodium-Ion Batteries Built by Stacking Two-Dimensional Titania Sheets with Carbon Nanotube Spacers

ACS Applied Energy Materials ◽

10.1021/acsaem.9b00852 ◽

2019 ◽

Vol 2 (8) ◽

pp. 5707-5715 ◽

Cited By ~ 2

Author(s):

Hongbin Chu ◽

Kun Jiang ◽

Guohui Li ◽

Zhigang Zhao ◽

Qingwen Li ◽

...

Keyword(s):

Carbon Nanotube ◽

Solid State ◽

Sodium Ion ◽

Sodium Ion Batteries ◽

Two Dimensional

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Synthesis and electrochemical performances of Na3V2(PO4)2F3/C composites as cathode materials for sodium ion batteries

RSC Advances ◽

10.1039/c9ra05089b ◽

2019 ◽

Vol 9 (53) ◽

pp. 30628-30636 ◽

Cited By ~ 2

Author(s):

Mingxue Wang ◽

Xiaobing Huang ◽

Haiyan Wang ◽

Tao Zhou ◽

Huasheng Xie ◽

...

Keyword(s):

Solid State ◽

Carbon Source ◽

Solid State Reaction ◽

Solid State Reaction Method ◽

Sodium Ion ◽

Electrochemical Performances ◽

Sodium Ion Batteries ◽

Rate Performance ◽

Cycle Stability ◽

Reaction Method

Na3V2(PO4)2F3/C composites were synthesized by a solid-state reaction method using pitch as the carbon source, the as-prepared sample with the carbon content of 12.14% possesses an excellent rate performance and cycle stability.

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