Preparation and Electrochemical Properties of Al-doped LiNi0.8Co0.08Mn0.12O2 Concentration Gradient Cathode Material AITranslate
Abstract AITranslate
Concentration gradient core-shell precursor Ni0.8Co0.08Mn0.12(OH)2 was prepared by co-precipitation,and then concentration gradient cathode material LiNi0.8Co0.08Mn0.12O2 was synthesized by calcining with lithium hydroxide.The doping of aluminum was carried out by dry mixing and precipitation,respectively.The results of XRD and electrolyte immersion test indicate that aluminum doping can stabilize the layered structure of concentration gradient cathode materials,reduce the degree of cationic mixing,and also inhibit the dissolution of cathode materials in electrolyte.Therefore,the electrochemical properties of materials can be improved.After the concentration gradient cathode material is doped by precipitation,its capacity maintaining rate of 100 cycles at 25 ℃ under 1 C increases from 92.5% to 94.5%,and its capacity maintaining rate of 50 cycles at 55 ℃ under 1 C increases from 91.3% to 95.8%.
KeyWords AITranslate
1马璨,吕迎春,李泓.锂离子电池基础科学问题(VII)——正极材料[J].储能科学与技术,2014,3(1):53-65. 被引量：42
1翁雅青,王爽,胡银,晏南富,曹才放.多离子共掺杂对三元正极材料性能的影响[J].电源技术,2020,44(4):477-481.
2许国峰,梁婷婷,李文升,张晶.Zr和B共掺杂的LiNi_(0.88)Co_(0.10)Mn_(0.02)O_(2)单晶材料性能研究[J].电源技术,2023,47(2):144-147.
1马洪运,崔洪悦,伍绍中,周江.原子层沉积制备Al2O3包覆层对LiNi0.83Co0.12Mn0.05O2性能的影响[J].电源技术,2019,43(10):1588-1591. 被引量：1
2张雨薇,刘成龙,徐志江.新能源汽车锂电池富锂锰基正极材料掺杂改性[J].电源技术,2019,43(10):1596-1600. 被引量：4
3黄玲,叶超,王英,唐仁衡,肖方明.高比容量正极材料LiNi0.80Co0.15Al0.05O2的结构和性能研究[J].电源技术,2019,43(10):1592-1595. 被引量：2
4邓书山,孙亚男.PDCA循环水利工程安全管理探析[J].城市建设理论研究：电子版,2019,0(11):33-33.
5李婧霞,赵煜娟,金玉红,吕志,徐涛.LiNi0.8Co0.15Al0.05O2正极材料的电化学与热稳定性改善[J].电源技术,2019,43(10):1584-1587. 被引量：1
6卢彦,李胜,蓝利芳,卢璐,李军.石榴石型固体电解质Li7La3Zr2O12的掺杂改性及应用研究进展[J].化工新型材料,2019,0(9):50-53.
7马传博,易红宏,唐晓龙,赵顺征,宋灵灵.新型核壳材料的性能及其在环境相关领域的研究进展[J].化工新型材料,2019,0(9):1-5.
8郭兴波,杨桂玲,叶富胜,周雄,戴永年.用GITT测定正极材料LiNi0.5CoxMn0.5-xO2的Li+扩散系数[J].分子科学学报,2019,35(5):395-400.
9马倩倩.白炭黑的制备与发展趋势[J].中国粉体工业,2019,0(5):8-14. 被引量：3
10苏金然,王九洲,刘雪省,王立群.中空二氧化锰制备及其电化学性能研究[J].电源技术,2019,43(10):1684-1687.
Basic Information:
DOI：
Chinese Library Classification Number:O646[理学—物理化学]
Citation Information:
Concentration gradient core-shell precursor Ni0.8Co0.08Mn0.12(OH)2 was prepared by co-precipitation,and then concentration gradient cathode material LiNi0.8Co0.08Mn0.12O2 was synthesized by calcining with lithium hydroxide.The doping of aluminum was carried out by dry mixing and precipitation,respectively.The results of XRD and electrolyte immersion test indicate that aluminum doping can stabilize the layered structure of concentration gradient cathode materials,reduce the degree of cationic mixing,and also inhibit the dissolution of cathode materials in electrolyte.Therefore,the electrochemical properties of materials can be improved.After the concentration gradient cathode material is doped by precipitation,its capacity maintaining rate of 100 cycles at 25 ℃ under 1 C increases from 92.5% to 94.5%,and its capacity maintaining rate of 50 cycles at 55 ℃ under 1 C increases from 91.3% to 95.8%.
quote
| GB/T 7714-2015 | [1] ZHANG Yong-jie, LI Jian-ling, XIA Bao-jia, et al. Preparation and Electrochemical Properties of Al-doped LiNi0.8Co0.08Mn0.12O2 Concentration Gradient Cathode Material[J]. Rare Metals and Cemented Carbides, 2019(5): 49-54. |
| MLA | [1] ZHANG Yong-jie, et al., "Preparation and Electrochemical Properties of Al-doped LiNi0.8Co0.08Mn0.12O2 Concentration Gradient Cathode Material." Rare Metals and Cemented Carbides, no. 5, 2019, pp. 49-54. |
| APA | [1] ZHANG Yong-jie, LI Jian-ling, XIA Bao-jia, ZHANG Jian, & NIU Bang-bang. (2019). Preparation and Electrochemical Properties of Al-doped LiNi0.8Co0.08Mn0.12O2 Concentration Gradient Cathode Material. Rare Metals and Cemented Carbides(5), 49-54. |
| IEEE | [1] ZHANG Yong-jie, LI Jian-ling, XIA Bao-jia, ZHANG Jian, and NIU Bang-bang, "Preparation and Electrochemical Properties of Al-doped LiNi0.8Co0.08Mn0.12O2 Concentration Gradient Cathode Material," Rare Metals and Cemented Carbides, no. 5, pp. 49-54, 2019. keywords: {ternary material;concentration gradient material;Al doping;electrochemical property} |