Self-Formulated Na-Based Dual-Ion Battery Using Nonflammable SO2-Based Inorganic Liquid Electrolyte
- Title
- Self-Formulated Na-Based Dual-Ion Battery Using Nonflammable SO2-Based Inorganic Liquid Electrolyte
- Author
- 김한수
- Keywords
- copper chloride; discharged state cathodes; inorganic electrolytes; nonmetallic anodes; sodium batteries
- Issue Date
- 2021-03
- Publisher
- WILEY-V C H VERLAG GMBH
- Citation
- SMALL, v. 17, NO. 9, article no. 1902144
- Abstract
- Sodium secondary batteries have gained much attention as alternative power sources to replace lithium secondary batteries. However, some technical issues must be solved to ensure their success. Here, a highly safe and cost-effective Na-based dual-ion battery system employing self-formulated CuCl cathode material starting from a mixture of Cu and NaCl in conjunction with a nonflammable NaAlCl4·2SO2 inorganic liquid electrolyte is demonstrated. It is found that CuCl is spontaneously formed by redox coupling of Cu/Cu(I) and SO2/SO2− anion radical. In the proposed battery, Na+ and Cl− are employed as energy carriers for the anode and cathode, respectively, and it is further demonstrated that the Na-metal-free battery configuration is possible using a hard carbon anode. Owing to the use of cheap electrode materials and a highly conductive and safe electrolyte, the proposed batteries deserve to be regarded as a promising approach for next-generation Na rechargeable batteries.
- URI
- https://onlinelibrary.wiley.com/doi/10.1002/smll.201902144https://repository.hanyang.ac.kr/handle/20.500.11754/178326
- ISSN
- 1613-6810;1613-6829
- DOI
- 10.1002/smll.201902144
- Appears in Collections:
- COLLEGE OF ENGINEERING[S](공과대학) > ENERGY ENGINEERING(에너지공학과) > Articles
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