硅掺杂锰酸锂的自蔓延燃烧制备及其性能研究

doi:10.19964/j.issn.1006-4990.2022-0413

Abstract

Abstract:

In order to solve the problem of poor cycle performance of LiMn₂O₄ during charge-discharge cycles，silicon doped lithium manganate ultrafine particles（LiMn_1.95Si_0.05O₄，referred to as LMSO） were prepared by self-propagating combustion method.The effects of silicon doping on the crystal structure，morphology and electrochemical properties of lithium manganate were studied by means of X-ray diffraction，scanning electron microscopy and cyclic voltammetry.The results showed that silicon doping did not change the structure of lithium manganate spinel.The particle size of lithium manganate was greater than 0.1 μm.Most silicon doped lithium manganate particles were less than 0.1 μm.The reduced particle size shortened the diffusion path of Li⁺ and improved the electrochemical properties.At 0.2C rate，the specific discharge capacity of LiMn_1.95Si_0.05O₄was as high as 123.7 mA·h/g.After 100 cycles at 1C rate，the capacity retention rate was 95%.

Key words: self-propagating combustion, lithium manganate, cathode material, lithium ion battery

CLC Number:

TQ152

ZHU Zhihong, ZHU Yongfang. Study on preparation and properties of silicon doped lithium manganate by self-propagating combustion[J]. Inorganic Chemicals Industry, 2023, 55(5): 66-70.

Figures/Tables 7

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References 14

1	刘卓钦，周晓崇，莫梁君.硼酸锂包覆改性锂离子电池尖晶石锰酸锂正极材料的研究[J].无机盐工业，2022，54（9）：90- 95.
	LIU Zhuoqin， ZHOU Xiaochong， MO Liangjun.Study on lithium borate coating on spinel lithium manganate cathode material for lithium-ion battery[J].Inorganic Chemicals Industry，2022，54（9）：90-95.
2	李春流，杨俊峰，朱金良，等.复合锰源前驱体制备的尖晶石
	锰酸锂的结构与性能[J].材料热处理学报，2022，43（4）：27- 33.
	LI Chunliu， YANG Junfeng， ZHU Jinliang，et al.Structure and properties of LiMn₂O₄ synthesized by complex manganese precursor[J].Transactions of Materials and Heat Treatment，2022，43（4）：27-33.
3	周钢，陈月皎，范洪波.尖晶石LiMn₂O₄纳米棒的合成和储锂性能[J].中南大学学报：自然科学版，2020，51（11）：3211- 3219.
	ZHOU Gang， CHEN Yuejiao， FAN Hongbo.Synthesis and lithium storage performance of spinel LiMn₂O₄ nanorods[J].Journal of Central South University：Science and Technology，2020，51（11）：3211-3219.
4	段玉珍，朱金玉，郭俊明，等.尖晶石型锰酸锂正极材料LiNi_0.01Co_0.03Mn_1.96O₄的合成及电化学性能[J].高等学校化学学报，2019，40（12）：2574-2582.
	DUAN Yuzhen， ZHU Jinyu， GUO Junming，et al.Synthesis and electrochemical properties of spinel lithium Manganese cathode material LiNi_0.01Co_0.03Mn_1.96O₄ [J].Chemical Journal of Chinese Universities，2019，40（12）：2574-2582.
5	ZHANG Qingtang， XIE Xiaolong， FAN Weifeng，et al.Lithium polyacrylate-coated LiMn₂O₄ cathode materials with excellent performance for lithium ion batteries[J].Ionics，2016，22（12）：2273-2280.
6	PUT B， VEREECKEN P M， LABYEDH N，et al.High cycling stability and extreme rate performance in nanoscaled LiMn₂O₄ thin films[J].ACS Applied Materials & Interfaces，2015，7（40）：22413-22420.
7	ZHAO Hongyuan， LIU Shanshan， CAI Yu，et al.A simple and mass production preferred solid-state procedure to prepare the LiSi _x Mg _x Mn_2-2 _x O₄（0≤x≤0.10） with enhanced cycling stability and rate capability[J].Journal of Alloys and Compounds，2016，671：304-311.
8	SUN Xiaorui， XIAO Ruijuan， YU Xiqian，et al.First-principles simulations for the surface evolution and Mn dissolution in the fully delithiated spinel LiMn₂O₄ [J].Langmuir：the ACS Journal of Surfaces and Colloids，2021，37（17）：5252-5259.
9	ZHAO Hongyuan， LIU Shanshan， WANG Zhenwei，et al.LiSi _x Mn_2- _x O₄（x≤0.10） cathode materials with improved electrochemical properties prepared via a simple solid-state method for high-performance lithium-ion batteries[J].Ceramics International，2016，42（12）：13442-13448.
10	XIONG Lilong， XU Youlong， ZHANG Cheng，et al.Electrochemical properties of tetravalent Ti-doped spinel LiMn₂O₄ [J].Journal of Solid State Electrochemistry，2011，15（6）：1263-1269.
11	LU Jia， ZHOU Cuifeng， LIU Zongwen，et al.LiMn₂O₄ cathode materials with large porous structure and radial interior channels for lithium ion batteries[J].Electrochimica Acta，2016，212：553- 560.
12	WU Xianming， CHEN Shang， HE Zeqiang，et al.Synthesis and characterization of LiMn₂O₄/Ag composite by citrate gel and combustion method[J].Ceramics International，2008，34（6）：1387-1391.
13	ZHANG Qingtang， MEI Juntao， WANG Xiaomei，et al.Effect of the NO₃ ^-/CH₃COO^- ratio on structure and performance of ultrafine LiMn₂O₄ by solution combustion synthesis[J].Journal of Alloys and Compounds，2014，606：249-253.
14	WANG Xiaoya， HAO Hao， LIU Jiali， HUANG Tao，et al.A novel method for preparation of macroposous lithium nickel manganese oxygen as cathode material for lithium ion batteries[J].Electrochimica Acta，2011，56（11）：4065-4069.

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Study on preparation and properties of silicon doped lithium manganate by self-propagating combustion

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