‘Cotton-ball’ shaped porous iron-nickel sulfide: A high-rate cathode for long-life aqueous rechargeable battery
IR@CGCRI: CSIR-Central Glass and Ceramic Research Institute, Kolkata
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| Title |
‘Cotton-ball’ shaped porous iron-nickel sulfide: A high-rate cathode for long-life aqueous rechargeable battery
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| Creator |
Pramanik, Atin
Maiti, Sandipan Chattopadhyay, Shreyasi De, Goutam Mahanty, Sourindra |
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| Subject |
Electronics
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| Description |
Aqueous rechargeable batteries (ARB) offer reasonably higher energy density and cycle life than their non-aqueous counterparts. Yet, the bottleneck is a limited choice of positive electrodes coupled with low-rate capability and inadequate cycle life. We report here a wet chemical approach to synthesize in-situ three-dimensional (3D) ‘cotton-ball’ shaped porous iron-nickel sulfide (FeNi2S4) (henceforth referred to as PINS) as a diffusion-controlled ARB electrode. It shows a high specific capacity of 177 mA h g−1 at 1 A g−1 vs Pt in the alkaline electrolyte with excellent rate capability (89 mA h g−1 at 40 A g−1) and ultra-long cycle life (10,000 cycles). Furthermore, a pouch-type full-cell ARB (FeNi2S4//AC) delivers an energy density of 56.7 Wh kg−1 at a power density of 871.5 W kg−1 with high cycling stability (10,000 cycles). The present study offers a straightforward and efficient approach for developing nanostructured transition metal sulfide-based cathode materials for practical ARB.
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| Publisher |
Elsevier
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| Date |
2021-08
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| Type |
Article
PeerReviewed |
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| Format |
application/pdf
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| Identifier |
http://cgcri.csircentral.net/4718/1/mahanty.pdf
Pramanik, Atin and Maiti, Sandipan and Chattopadhyay, Shreyasi and De, Goutam and Mahanty, Sourindra (2021) ‘Cotton-ball’ shaped porous iron-nickel sulfide: A high-rate cathode for long-life aqueous rechargeable battery. Materials Research Bulletin, 140. Art No-111307. ISSN 0025-5408 |
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| Relation |
http://cgcri.csircentral.net/4718/
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