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Three-Dimensionally Ordered Macroporous ZnO Framework as Dual-Functional Sulfur Host for High-Efficiency Lithium–Sulfur Batteries
| Content Provider | MDPI |
|---|---|
| Author | Han, Haisheng Wang, Tong Zhang, Yongguang Nurpeissova, Arailym Bakenov, Zhumabay |
| Copyright Year | 2020 |
| Description | A three-dimensionally ordered macroporous ZnO (3DOM ZnO) framework was synthesized by a template method to serve as a sulfur host for lithium–sulfur batteries. The unique 3DOM structure along with an increased active surface area promotes faster and better electrolyte penetration accelerating ion/mass transfer. Moreover, ZnO as a polar metal oxide has a strong adsorption capacity for polysulfides, which makes the 3DOM ZnO framework an ideal immobilization agent and catalyst to inhibit the polysulfides shuttle effect and promote the redox reactions kinetics. As a result of the stated advantages, the S/3DOM ZnO composite delivered a high initial capacity of 1110 mAh g−1 and maintained a capacity of 991 mAh g−1 after 100 cycles at 0.2 C as a cathode in a lithium–sulfur battery. Even at a high C-rate of 3 C, the S/3DOM ZnO composite still provided a high capacity of 651 mAh g−1, as well as a high areal capacity (4.47 mAh cm−2) under high loading (5 mg cm−2). |
| Starting Page | 2267 |
| e-ISSN | 20794991 |
| DOI | 10.3390/nano10112267 |
| Journal | Nanomaterials |
| Issue Number | 11 |
| Volume Number | 10 |
| Language | English |
| Publisher | MDPI |
| Publisher Date | 2020-11-16 |
| Access Restriction | Open |
| Subject Keyword | Nanomaterials Inorganic Chemistry Lithium–sulfur Battery Three-dimensionally Ordered Macroporous Zno Strong Adsorption Fast Redox Kinetics |
| Content Type | Text |
| Resource Type | Article |
