Exploring synergetic effects of vinylene carbonate and 1,3-propane sultone on LiNi0.6Mn0.2Co0.2O2/graphite cells with excellent high-temperature performance

Xu, Dongwei1,2; Kang, Yuanyuan2,3; Wang, Jun2,4; Hu, Shiguang1,2,3; Shi, Qiao3; Lu, Zhouguang2; He, Dongsheng5; Zhao, Yanfei6; Qian, Yunxian1,2,3; Lou, Hongming1; Deng, Yonghong2

2019-10-15

10.1016/j.jpowsour.2019.226929

JOURNAL OF POWER SOURCES   影响因子和分区

0378-7753

1873-2755

LiNi0.6Mn0.2Co0.2O2 attracts increasing attention in industry due to its high energy density. Vinylene carbonate and 1,3-propane sultone are engaged to enhance the high-temperature performance of LiNi0.6Mn0.2Co0.2O2/artificial graphite pouch cells in this work. With the addition of the additives, the capacity retention of the full cell reaches 98% after 200 cycles at 45 degrees C and 500 mA. Meanwhile, the underneath mechanism is investigated by employing X-ray photoelectron spectroscopy, gas chromatograph-mass spectrometer and liquid chromatography quadruple time of flight mass spectrometry measurements. The results show that the additives can not only protect the anode, but also shelter the cathode. it is of great interest that vinylene carbonate can suppress the decomposition of electrolyte, leading to less organic species in electrolyte, more stable interfaces. The addition of 1,3-propane sultone takes part in the generation of sulfonates after formation, which can be reduced to sulfides upon cycling. The combination of these two additives can optimize the interfacial reactions, as well as can suppress the decomposition of electrolytes and the dissolution of manganese, which leads to much better high temperature storage performance and cycling performance of the full cells.

Lithium ion batteries Electrolyte additives High-temperature performance Solid electrolyte interphase Cathode electrolyte interphase

SCI ; EI

英语

通讯

Fundamental Research Foundation of Shenzhen[JCYJ20170412153424150]

Chemistry ; Electrochemistry ; Energy & Fuels ; Materials Science

Chemistry, Physical ; Electrochemistry ; Energy & Fuels ; Materials Science, Multidisciplinary

WOS:000486355400023

ELSEVIER

20193107260070

Carbonation ; Cathodes ; Cells ; Cobalt compounds ; Cytology ; Gas chromatography ; Liquid chromatography ; Lithium compounds ; Lithium-ion batteries ; Manganese compounds ; Mass spectrometry ; Nickel compounds ; Solid electrolytes ; Solid-State Batteries ; Spectrometers ; Sulfur compounds ; X ray photoelectron spectroscopy

Biological Materials and Tissue Engineering:461.2 ; Optical Devices and Systems:741.3 ; Chemistry:801 ; Chemical Reactions:802.2 ; Chemical Operations:802.3 ; Chemical Agents and Basic Industrial Chemicals:803

MATERIALS SCIENCE

Web of Science

1.South China Univ Technol, Sch Chem & Chem Engn, State Key Lab Pulp & Paper Engn, Guangzhou 510640, Guangdong, Peoples R China
2.Southern Univ Sci & Technol SUSTech, Dept Mat Sci & Engn, Shenzhen 518055, Peoples R China
3.Shenzhen CAPCHEM Technol Co Ltd, Shenzhen 518118, Peoples R China
4.Southern Univ Sci & Technol SUSTech, Acad Adv Interdisciplinary Studies, Shenzhen 518055, Peoples R China
5.Southern Univ Sci & Technol SUSTech, Dept Phys, Shenzhen 518055, Peoples R China
6.Chinese Acad Sci, Suzhou Inst Nanotech & Nanobion, Vacuum Interconnected Nanotech Workstn, 398 Ruoshui Rd, Suzhou 215123, Peoples R China

Xu, Dongwei,Kang, Yuanyuan,Wang, Jun,et al. Exploring synergetic effects of vinylene carbonate and 1,3-propane sultone on LiNi0.6Mn0.2Co0.2O2/graphite cells with excellent high-temperature performance[J]. JOURNAL OF POWER SOURCES,2019,437.

Xu, Dongwei.,Kang, Yuanyuan.,Wang, Jun.,Hu, Shiguang.,Shi, Qiao.,...&Deng, Yonghong.(2019).Exploring synergetic effects of vinylene carbonate and 1,3-propane sultone on LiNi0.6Mn0.2Co0.2O2/graphite cells with excellent high-temperature performance.JOURNAL OF POWER SOURCES,437.

Xu, Dongwei,et al."Exploring synergetic effects of vinylene carbonate and 1,3-propane sultone on LiNi0.6Mn0.2Co0.2O2/graphite cells with excellent high-temperature performance".JOURNAL OF POWER SOURCES 437(2019).