High-performance Zn battery with transition metal ions co-regulated electrolytic MnO2
Electrolytic MnO2/Zn batteries have attracted extensive attention for use in large-scale energy storage applications due to their low cost, high output voltage, safety, and environmental friendliness. However, the poor electrical conductivity of MnO2 limits its deposition and dissolution at large ca...
| Main Authors: | , , , , , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
KeAi Communications Co. Ltd.
2021-12-01
|
| Series: | eScience |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2667141721000239 |
| _version_ | 1811292494186414080 |
|---|---|
| author | Mingyan Chuai Jinlong Yang Mingming Wang Yuan Yuan Zaichun Liu Yan Xu Yichen Yin Jifei Sun Xinhua Zheng Na Chen Wei Chen |
| author_facet | Mingyan Chuai Jinlong Yang Mingming Wang Yuan Yuan Zaichun Liu Yan Xu Yichen Yin Jifei Sun Xinhua Zheng Na Chen Wei Chen |
| author_sort | Mingyan Chuai |
| collection | DOAJ |
| description | Electrolytic MnO2/Zn batteries have attracted extensive attention for use in large-scale energy storage applications due to their low cost, high output voltage, safety, and environmental friendliness. However, the poor electrical conductivity of MnO2 limits its deposition and dissolution at large capacities, which leads to sluggish reaction kinetics and drastic capacity decay. Here, we report a theory-guided design principle for an electrolytic MnO2/Zn battery co-regulated with transition metal ions that has improved electrochemical performance in terms of deposition and stripping chemistries. We start with first-principles calculations to predict the electrolytic effects of regulating transition metal ions in the deposition/stripping chemistry of the MnO2 cathode. The results indicate that with the simultaneous incorporation of strongly electronegative Co and Ni, the MnO2 cathode tends to possess more active electron states, faster charge-transfer kinetics, and better electrical conductivity than either MnO2 regulated with Co or Ni on their own, or pristine MnO2; hence, this co-regulation is beneficial for the cathode solid/liquid MnO2/Mn2+ reactions. We then fabricate and demonstrate a novel Co2+ and Ni2+ co-regulated MnO2/Zn (Co–Ni–MnO2/Zn) battery that yields significantly better electrochemical performance, finding that the synergistic regulation of Co and Ni on MnO2 can significantly increase its intrinsic conductivity and achieve high rates and Coulombic efficiencies at large capacities. The aqueous Co–Ni–MnO2/Zn battery exhibits a high rate (10C, 100 mA cm–2), high Coulombic efficiency (91.89%), and excellent cycling stability (600 cycles without decay) at a large areal capacity of 10 mAh cm–2. Our proposed strategy of co-regulation with transition metal ions offers a versatile approach for improving the electrochemical performance of aqueous electrolytic MnO2/Zn batteries in large-scale energy storage applications. |
| first_indexed | 2024-04-13T04:46:13Z |
| format | Article |
| id | doaj.art-93929a2c796a4e0d847a0fef904b81fd |
| institution | Directory Open Access Journal |
| issn | 2667-1417 |
| language | English |
| last_indexed | 2024-04-13T04:46:13Z |
| publishDate | 2021-12-01 |
| publisher | KeAi Communications Co. Ltd. |
| record_format | Article |
| series | eScience |
| spelling | doaj.art-93929a2c796a4e0d847a0fef904b81fd2022-12-22T03:01:50ZengKeAi Communications Co. Ltd.eScience2667-14172021-12-0112178185High-performance Zn battery with transition metal ions co-regulated electrolytic MnO2Mingyan Chuai0Jinlong Yang1Mingming Wang2Yuan Yuan3Zaichun Liu4Yan Xu5Yichen Yin6Jifei Sun7Xinhua Zheng8Na Chen9Wei Chen10Department of Applied Chemistry, School of Chemistry and Materials Science, Hefei National Laboratory for Physical Sciences at the Microscale, University of Science and Technology of China, Hefei, Anhui, 230026, China; College of Materials Science and Engineering, Shenzhen University, Shenzhen, 518060, ChinaCollege of Materials Science and Engineering, Shenzhen University, Shenzhen, 518060, China; Corresponding author.Department of Applied Chemistry, School of Chemistry and Materials Science, Hefei National Laboratory for Physical Sciences at the Microscale, University of Science and Technology of China, Hefei, Anhui, 230026, ChinaDepartment of Applied Chemistry, School of Chemistry and Materials Science, Hefei National Laboratory for Physical Sciences at the Microscale, University of Science and Technology of China, Hefei, Anhui, 230026, China; College of Materials Science and Engineering, Shenzhen University, Shenzhen, 518060, ChinaDepartment of Applied Chemistry, School of Chemistry and Materials Science, Hefei National Laboratory for Physical Sciences at the Microscale, University of Science and Technology of China, Hefei, Anhui, 230026, China; College of Materials Science and Engineering, Shenzhen University, Shenzhen, 518060, ChinaDepartment of Applied Chemistry, School of Chemistry and Materials Science, Hefei National Laboratory for Physical Sciences at the Microscale, University of Science and Technology of China, Hefei, Anhui, 230026, ChinaDepartment of Applied Chemistry, School of Chemistry and Materials Science, Hefei National Laboratory for Physical Sciences at the Microscale, University of Science and Technology of China, Hefei, Anhui, 230026, ChinaDepartment of Applied Chemistry, School of Chemistry and Materials Science, Hefei National Laboratory for Physical Sciences at the Microscale, University of Science and Technology of China, Hefei, Anhui, 230026, ChinaDepartment of Applied Chemistry, School of Chemistry and Materials Science, Hefei National Laboratory for Physical Sciences at the Microscale, University of Science and Technology of China, Hefei, Anhui, 230026, ChinaDepartment of Applied Chemistry, School of Chemistry and Materials Science, Hefei National Laboratory for Physical Sciences at the Microscale, University of Science and Technology of China, Hefei, Anhui, 230026, ChinaDepartment of Applied Chemistry, School of Chemistry and Materials Science, Hefei National Laboratory for Physical Sciences at the Microscale, University of Science and Technology of China, Hefei, Anhui, 230026, China; Corresponding author.Electrolytic MnO2/Zn batteries have attracted extensive attention for use in large-scale energy storage applications due to their low cost, high output voltage, safety, and environmental friendliness. However, the poor electrical conductivity of MnO2 limits its deposition and dissolution at large capacities, which leads to sluggish reaction kinetics and drastic capacity decay. Here, we report a theory-guided design principle for an electrolytic MnO2/Zn battery co-regulated with transition metal ions that has improved electrochemical performance in terms of deposition and stripping chemistries. We start with first-principles calculations to predict the electrolytic effects of regulating transition metal ions in the deposition/stripping chemistry of the MnO2 cathode. The results indicate that with the simultaneous incorporation of strongly electronegative Co and Ni, the MnO2 cathode tends to possess more active electron states, faster charge-transfer kinetics, and better electrical conductivity than either MnO2 regulated with Co or Ni on their own, or pristine MnO2; hence, this co-regulation is beneficial for the cathode solid/liquid MnO2/Mn2+ reactions. We then fabricate and demonstrate a novel Co2+ and Ni2+ co-regulated MnO2/Zn (Co–Ni–MnO2/Zn) battery that yields significantly better electrochemical performance, finding that the synergistic regulation of Co and Ni on MnO2 can significantly increase its intrinsic conductivity and achieve high rates and Coulombic efficiencies at large capacities. The aqueous Co–Ni–MnO2/Zn battery exhibits a high rate (10C, 100 mA cm–2), high Coulombic efficiency (91.89%), and excellent cycling stability (600 cycles without decay) at a large areal capacity of 10 mAh cm–2. Our proposed strategy of co-regulation with transition metal ions offers a versatile approach for improving the electrochemical performance of aqueous electrolytic MnO2/Zn batteries in large-scale energy storage applications.http://www.sciencedirect.com/science/article/pii/S2667141721000239Aqueous batteryMnO2 cathodeDeposition and stripping chemistryElectrolytic effectLarge-scale energy storage |
| spellingShingle | Mingyan Chuai Jinlong Yang Mingming Wang Yuan Yuan Zaichun Liu Yan Xu Yichen Yin Jifei Sun Xinhua Zheng Na Chen Wei Chen High-performance Zn battery with transition metal ions co-regulated electrolytic MnO2 eScience Aqueous battery MnO2 cathode Deposition and stripping chemistry Electrolytic effect Large-scale energy storage |
| title | High-performance Zn battery with transition metal ions co-regulated electrolytic MnO2 |
| title_full | High-performance Zn battery with transition metal ions co-regulated electrolytic MnO2 |
| title_fullStr | High-performance Zn battery with transition metal ions co-regulated electrolytic MnO2 |
| title_full_unstemmed | High-performance Zn battery with transition metal ions co-regulated electrolytic MnO2 |
| title_short | High-performance Zn battery with transition metal ions co-regulated electrolytic MnO2 |
| title_sort | high performance zn battery with transition metal ions co regulated electrolytic mno2 |
| topic | Aqueous battery MnO2 cathode Deposition and stripping chemistry Electrolytic effect Large-scale energy storage |
| url | http://www.sciencedirect.com/science/article/pii/S2667141721000239 |
| work_keys_str_mv | AT mingyanchuai highperformanceznbatterywithtransitionmetalionscoregulatedelectrolyticmno2 AT jinlongyang highperformanceznbatterywithtransitionmetalionscoregulatedelectrolyticmno2 AT mingmingwang highperformanceznbatterywithtransitionmetalionscoregulatedelectrolyticmno2 AT yuanyuan highperformanceznbatterywithtransitionmetalionscoregulatedelectrolyticmno2 AT zaichunliu highperformanceznbatterywithtransitionmetalionscoregulatedelectrolyticmno2 AT yanxu highperformanceznbatterywithtransitionmetalionscoregulatedelectrolyticmno2 AT yichenyin highperformanceznbatterywithtransitionmetalionscoregulatedelectrolyticmno2 AT jifeisun highperformanceznbatterywithtransitionmetalionscoregulatedelectrolyticmno2 AT xinhuazheng highperformanceznbatterywithtransitionmetalionscoregulatedelectrolyticmno2 AT nachen highperformanceznbatterywithtransitionmetalionscoregulatedelectrolyticmno2 AT weichen highperformanceznbatterywithtransitionmetalionscoregulatedelectrolyticmno2 |