Improving the electrochemical performance of ultrahigh-nickel-based layered LiNi0.95Mn0.05O2 cathode through cobalt modification for next-generation high-energy Li-ion batteries
Nickel-rich cobalt-free layered cathode materials are expected to meet the urgent demand for high-energy batteries at an adorable cost. However, as the nickel content increases and cobalt content decreases, layered cathode materials suffer from serious structure degradation and capacity fade during...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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Elsevier
2023-07-01
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| Series: | Electrochemistry Communications |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S1388248123000887 |
| _version_ | 1827911158167764992 |
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| author | Jinyu Chen Binbin Chu Guangxin Li Tao Huang Aishui Yu |
| author_facet | Jinyu Chen Binbin Chu Guangxin Li Tao Huang Aishui Yu |
| author_sort | Jinyu Chen |
| collection | DOAJ |
| description | Nickel-rich cobalt-free layered cathode materials are expected to meet the urgent demand for high-energy batteries at an adorable cost. However, as the nickel content increases and cobalt content decreases, layered cathode materials suffer from serious structure degradation and capacity fade during cycling. The large amount of residual lithium in nickel-rich materials also brings difficulties to industrial manufacturing and challenges battery safety. In this work, well-formed crystal cobalt-contained coatings with surface cobalt-doped ultrahigh-nickel-based layered LiNi0.95Mn0.05O2 cathode material is synthesized through solid solution and post-heat treatment with Co(OH)2, during which the residual lithium is significantly consumed. The optimized sample acquired at 650 ℃ shows an increased discharge capacity of 221.2 mAh g−1 from 219 mAh g−1 of the pristine one at 0.1 C and the capacity retention is enhanced from 72.6% to 83.2% for 100 cycles at 0.5 C. |
| first_indexed | 2024-03-13T01:59:22Z |
| format | Article |
| id | doaj.art-6dd2dcef2ea8437496ea2da2c113bf75 |
| institution | Directory Open Access Journal |
| issn | 1388-2481 |
| language | English |
| last_indexed | 2024-03-13T01:59:22Z |
| publishDate | 2023-07-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Electrochemistry Communications |
| spelling | doaj.art-6dd2dcef2ea8437496ea2da2c113bf752023-07-02T04:16:21ZengElsevierElectrochemistry Communications1388-24812023-07-01152107514Improving the electrochemical performance of ultrahigh-nickel-based layered LiNi0.95Mn0.05O2 cathode through cobalt modification for next-generation high-energy Li-ion batteriesJinyu Chen0Binbin Chu1Guangxin Li2Tao Huang3Aishui Yu4Laboratory of Advanced Materials, Fudan University, Shanghai 200438, ChinaDepartment of Chemistry, Collaborative Innovation Center of Chemistry for Energy Materials, Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Institute of New Energy, Fudan University, Shanghai 200438, ChinaLaboratory of Advanced Materials, Fudan University, Shanghai 200438, ChinaLaboratory of Advanced Materials, Fudan University, Shanghai 200438, China; Corresponding authors.Laboratory of Advanced Materials, Fudan University, Shanghai 200438, China; Department of Chemistry, Collaborative Innovation Center of Chemistry for Energy Materials, Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Institute of New Energy, Fudan University, Shanghai 200438, China; Corresponding authors.Nickel-rich cobalt-free layered cathode materials are expected to meet the urgent demand for high-energy batteries at an adorable cost. However, as the nickel content increases and cobalt content decreases, layered cathode materials suffer from serious structure degradation and capacity fade during cycling. The large amount of residual lithium in nickel-rich materials also brings difficulties to industrial manufacturing and challenges battery safety. In this work, well-formed crystal cobalt-contained coatings with surface cobalt-doped ultrahigh-nickel-based layered LiNi0.95Mn0.05O2 cathode material is synthesized through solid solution and post-heat treatment with Co(OH)2, during which the residual lithium is significantly consumed. The optimized sample acquired at 650 ℃ shows an increased discharge capacity of 221.2 mAh g−1 from 219 mAh g−1 of the pristine one at 0.1 C and the capacity retention is enhanced from 72.6% to 83.2% for 100 cycles at 0.5 C.http://www.sciencedirect.com/science/article/pii/S1388248123000887Li-ion batteryNickel-richCathodeResidual lithium |
| spellingShingle | Jinyu Chen Binbin Chu Guangxin Li Tao Huang Aishui Yu Improving the electrochemical performance of ultrahigh-nickel-based layered LiNi0.95Mn0.05O2 cathode through cobalt modification for next-generation high-energy Li-ion batteries Electrochemistry Communications Li-ion battery Nickel-rich Cathode Residual lithium |
| title | Improving the electrochemical performance of ultrahigh-nickel-based layered LiNi0.95Mn0.05O2 cathode through cobalt modification for next-generation high-energy Li-ion batteries |
| title_full | Improving the electrochemical performance of ultrahigh-nickel-based layered LiNi0.95Mn0.05O2 cathode through cobalt modification for next-generation high-energy Li-ion batteries |
| title_fullStr | Improving the electrochemical performance of ultrahigh-nickel-based layered LiNi0.95Mn0.05O2 cathode through cobalt modification for next-generation high-energy Li-ion batteries |
| title_full_unstemmed | Improving the electrochemical performance of ultrahigh-nickel-based layered LiNi0.95Mn0.05O2 cathode through cobalt modification for next-generation high-energy Li-ion batteries |
| title_short | Improving the electrochemical performance of ultrahigh-nickel-based layered LiNi0.95Mn0.05O2 cathode through cobalt modification for next-generation high-energy Li-ion batteries |
| title_sort | improving the electrochemical performance of ultrahigh nickel based layered lini0 95mn0 05o2 cathode through cobalt modification for next generation high energy li ion batteries |
| topic | Li-ion battery Nickel-rich Cathode Residual lithium |
| url | http://www.sciencedirect.com/science/article/pii/S1388248123000887 |
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