High Capacity Anode Materials for Rechargeable Sodium-Ion Batteries
Высокоемкие анодные материалы для перезаряжаемых натрий-ионных аккумуляторов
2000-01-01
SCID: 54.1/4hnc9mh9
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electrochemical techniquesgravimetric capacityhard-carbon anodesreversible sodium insertionsodium-ion batteries
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Abstract (AI)
Electrochemical techniques have been used to study the reversible insertion of sodium into hard‐carbon host structures at room temperature. In this paper we compare these results with those for lithium insertion in the same materials and demonstrate the presence of similar alkali metal insertion mechanisms in both cases. Despite the gravimetric capacities being lower for sodium than lithium insertion, we have achieved a reversible sodium capacity of 300 mAh/g, close to that for lithium insertion in graphitic carbon anode materials. Such materials may therefore be useful as anodes in rechargeable sodium‐ion batteries. © 2000 The Electrochemical Society. All rights reserved.
Key Findings
1
Although sodium insertion has lower gravimetric capacity than lithium insertion, hard carbon achieves a reversible sodium capacity of 300 mAh/g.
2
Electrochemical studies demonstrate reversible sodium insertion into hard-carbon host structures at room temperature.
3
Sodium and lithium insertion in the same hard-carbon materials exhibit similar alkali-metal insertion mechanisms.
4
The achieved sodium capacity is close to that of lithium insertion in graphitic carbon anodes, indicating hard carbon’s potential for rechargeable sodium-ion batteries.
Research Object
Reversible sodium insertion into hard-carbon host structures for rechargeable sodium-ion battery anodes
Research Subject
Sodium insertion capacity and alkali-metal insertion mechanisms compared with lithium insertion, including reversible capacity and anode suitability
Publication Details
Publication Date
2000-01-01
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