Electrospun-sodiumtetrafluoroborate-polyethylene oxide membranes for solvent-free sodium ion transport in solid state sodium ion batteries

All-solid-state sodium-ion batteries, by utilizing inorganic superionic conductors, perform great potential in energy storage applications. However, suitable Na superionic conductors with desirable high ionic conductivities and cross-linked diffusion networks are...

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Self-assembled Mn-doped MoS2 hollow nanotubes with significantly enhanced sodium storage for high-performance sodium-ion batteries

Inorganic Chemistry Frontiers ◽

10.1039/c8qi00285a ◽

2018 ◽

Vol 5 (7) ◽

pp. 1587-1593 ◽

Cited By ~ 9

Author(s):

Tian Zheng ◽

Guangda Li ◽

Jianhong Dong ◽

Qiaoqiao Sun ◽

Xiangeng Meng

Keyword(s):

Ion Transport ◽

Electrochemical Properties ◽

High Performance ◽

Sodium Ion ◽

Sodium Ion Batteries ◽

Sodium Ion Transport ◽

Self Assembled ◽

Mn Doped ◽

Sodium Storage

Mn-Doped MoS2 hollow nanotubes as an anode exhibit an enhanced fast sodium ion transport capability and superb electrochemical properties in sodium-ion batteries.

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A stable cathode-solid electrolyte composite for high-voltage, long-cycle-life solid-state sodium-ion batteries

Nature Communications ◽

10.1038/s41467-021-21488-7 ◽

2021 ◽

Vol 12 (1) ◽

Author(s):

Erik A. Wu ◽

Swastika Banerjee ◽

Hanmei Tang ◽

Peter M. Richardson ◽

Jean-Marie Doux ◽

...

Keyword(s):

Solid State ◽

High Voltage ◽

Coulombic Efficiency ◽

Composite Cathode ◽

Cycling Performance ◽

Sodium Ion ◽

Great Promise ◽

Sodium Ion Batteries ◽

Ion Conductor ◽

Oxide Cathodes

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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SnO2 Nanosheets Anchored on a 3D, Bicontinuous Electron and Ion Transport Carbon Network for High-Performance Sodium-Ion Batteries

ACS Applied Materials & Interfaces ◽

10.1021/acsami.8b11672 ◽

2018 ◽

Vol 10 (44) ◽

pp. 38006-38014 ◽

Cited By ~ 22

Author(s):

Xun Zhao ◽

Ming Luo ◽

Wenxia Zhao ◽

Ruimei Xu ◽

Yong Liu ◽

...

Keyword(s):

Ion Transport ◽

High Performance ◽

Sodium Ion ◽

Sodium Ion Batteries ◽

Carbon Network

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Molecular Dynamics Study of Ion Transport in Polymer Electrolytes of All-Solid-State Li-Ion Batteries

Micromachines ◽

10.3390/mi12091012 ◽

2021 ◽

Vol 12 (9) ◽

pp. 1012

Author(s):

Takuya Mabuchi ◽

Koki Nakajima ◽

Takashi Tokumasu

Keyword(s):

Molecular Dynamics ◽

Solid State ◽

Ion Transport ◽

Polyethylene Oxide ◽

Polymer Electrolytes ◽

Li Ion Batteries ◽

Transport Mechanisms ◽

Li Ion ◽

Dynamics Simulations ◽

The Relationship

Atomistic analysis of the ion transport in polymer electrolytes for all-solid-state Li-ion batteries was performed using molecular dynamics simulations to investigate the relationship between Li-ion transport and polymer morphology. Polyethylene oxide (PEO) and poly(diethylene oxide-alt-oxymethylene), P(2EO-MO), were used as the electrolyte materials, and the effects of salt concentrations and polymer types on the ion transport properties were explored. The size and number of LiTFSI clusters were found to increase with increasing salt concentrations, leading to a decrease in ion diffusivity at high salt concentrations. The Li-ion transport mechanisms were further analyzed by calculating the inter/intra-hopping rate and distance at various ion concentrations in PEO and P(2EO-MO) polymers. While the balance between the rate and distance of inter-hopping was comparable for both PEO and P(2EO-MO), the intra-hopping rate and distance were found to be higher in PEO than in P(2EO-MO), leading to a higher diffusivity in PEO. The results of this study provide insights into the correlation between the nanoscopic structures of ion solvation and the dynamics of Li-ion transport in polymer electrolytes.

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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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