Analysis of cycling performance failure of NMC811/SiO-C pouch cells with high specific energy

doi:10.12028/j.issn.2095-4239.2018.0032

Abstract

Abstract: NMC811/SiO-C cell is one of the most potential battery systems with high specific capacity, however, it is difficult to improve its poor cycling performance in practical application. To analysis the cycling failure mechanism of NMC811/SiO-C cell, electrode characterizations have been carried out by electrochemical impedance spectroscopy (EIS), X-ray diffraction spectroscopy (XRD), Fourier transform infrared spectroscopy (FTIR), scanning electron microscope (SEM),transmission electron microscope (TEM). The result showed that NMC811 cathode material can keep stable crystal structure and yield dissolving of metal ions during cycling, while SiO-C anode material suffered from structure cracking and displayed increasing consumption of electrolyte as well as growing SEI layer thickness. The changes in electrodes cause the serious specific capacity degradation and the poor cycling performance of NMC811/SiO-C pouch cells.

Key words: NMC811/SiO-C, failure mechanism, characterization analysis

CLC Number:

TM912

LIANG Dayu, BAO Tingting, GAO Tianhui, ZHANG Jian. Analysis of cycling performance failure of NMC811/SiO-C pouch cells with high specific energy[J]. Energy Storage Science and Technology, 2018, 7(3): 459-464.

References

[1] BLOMGREN G E. The development and future of lithium ion batteries[J]. Journal of the Electrochemical Society, 2017, 164(1):A5019-A5025.
[2] CHEN C H, WANG C J, HWANG B J. Electrochemical performance of layered Li[Ni_xCo_1-2xMn_x]O₂, cathode materials synthesized by a sol-gel method[J]. Journal of Power Sources, 2005, 146(1):626-629.
[3] ZHAO X, WANG J, DONG X. Structure design and performance of LiNi_xCo_yMn_1-x-yO₂ cathode materials for lithium-ion batteries:A review[J]. Cheminform, 2015, 61(10):1071-1083.
[4] HUI Z, PARK S J, SHI F. Propylene carbonate (PC)-based electrolytes with high coulombic efficiency for lithium-ion batteries[J]. Journal of the Electrochemical Society, 2014, 161(1):A194-A200.
[5] AN S J, LI J, DANIEL C, et al. The state of understanding of the lithium-ion-battery graphite solid electrolyte interphase (SEI) and its relationship to formation cycling[J]. Cheminform, 2016, 105(28):52-76.
[6] PANT D, DOLKER T. Green and facile method for the recovery of spent lithium nickel manganese cobalt oxide (NMC) based lithium ion batteries[J]. Waste Management, 2017, 60:doi:10.1016/j.wasman. 2016.09.039.
[7] MANIKANDAN P, PERIASAMY P, JAGANNATHAN R. Faceted shape-drive, cathode particles using mixed hydroxy-carbonate precursor for mesocarbon microbeads versus, LiNi_1/3Mn_1/3Co_1/3O₂, Li-ion pouch cell[J]. Journal of Power Sources, 2014, 245(1):501-509.
[8] SHI S, QI Y, LI H, et al. Defect thermodynamics and diffusion mechanisms in Li₂CO₃ and implications for the solid electrolyte interphase in Li-ion batteries[J]. Journal of Physical Chemistry C, 2013, 117(17):8579-8593.
[9] BERNARD P, MARTINEZ H, TESSIER C, et al. Role of negative electrode porosity in long-term aging of NMC//graphite Li-ion batteries[J]. Journal of the Electrochemical Society, 2015, 162(13):7096-7103.
[10] JALKANEN K, KARPPINEN J, SKOGSTROM L, et al. Cycle aging of commercial NMC/graphite pouch cells at different temperatures[J]. Applied Energy, 2015, 154:160-172.