Tunnel‐Type Sodium Manganese Oxide Cathodes for Sodium‐Ion Batteries

2021 ◽  
Author(s):  
Munseok S. Chae ◽  
Yuval Elias ◽  
Doron Aurbach
2020 ◽  
Vol 820 ◽  
pp. 153093 ◽  
Author(s):  
Xinyin Cai ◽  
Yanan Xu ◽  
Lei Meng ◽  
Xiujuan Wei ◽  
Fangyu Xiong ◽  
...  

2017 ◽  
Vol 5 (12) ◽  
pp. 5858-5864 ◽  
Author(s):  
Ezequiel de la Llave ◽  
Prasant Kumar Nayak ◽  
Elena Levi ◽  
Tirupathi Rao Penki ◽  
Shaul Bublil ◽  
...  

Lithium doping improves structural stability and increases average working potential of manganese oxide cathodes for sodium-ion batteries.


2021 ◽  
Vol 12 (1) ◽  
Author(s):  
Erik A. Wu ◽  
Swastika Banerjee ◽  
Hanmei Tang ◽  
Peter M. Richardson ◽  
Jean-Marie Doux ◽  
...  

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.


Author(s):  
Dr. Qun Huang ◽  
Dr. Meiyu Wang ◽  
Dr. Li Zhang ◽  
Shuo Qi ◽  
Dr. Yiming Feng ◽  
...  

2022 ◽  
Author(s):  
Caihong Shi ◽  
Liguang Wang ◽  
Xian Chen ◽  
Jun Li ◽  
Shun Wang ◽  
...  

As the most promising alternate for lithium-ion batteries (LIBs), sodium-ion batteries (SIBs) still face many issues that hinder their large-scale commercialization. Layered transition metal oxide cathodes have attracted widespread attention...


2020 ◽  
Vol 7 (3) ◽  
pp. 691-696
Author(s):  
Ying Yang ◽  
Yuzhang Feng ◽  
Cheng Ma ◽  
Qun Huang ◽  
Liangjun Zhou ◽  
...  

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