2019-Sustainable Industrial Processing Summit
SIPS2019 Volume 12: Energy Production and Secondary Batterie
| Editors: | F. Kongoli, H. Dodds, M. Mauntz, T. Turna, K. Aifantis, A. Fox, V. Kumar |
| Publisher: | Flogen Star OUTREACH |
| Publication Year: | 2019 |
| Pages: | 112 pages |
| ISBN: | 978-1-989820-11-7 |
| ISSN: | 2291-1227 (Metals and Materials Processing in a Clean Environment Series) |
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Feasibility of a Physical Vapor Deposition technology for battery electrode manufacturing
Dmitry Yarmolich1; Rumen Tomov2; Vasant Kumar2; Carmen Murphy3; Yaroslav Odarchenko4; Dzianis Yarmolich5; Enrico Petrucco3;1PLASMA APP LTD, OX11 0QX, United Kingdom; 2UNIVERSITY OF CAMBRIDGE, Cambridge, United Kingdom; 3JOHNSON MATTHEY BATTERY MATERIALS, Reading RG4 9NH, United Kingdom; 4PLASMA APP LTD, Oxford OX11 0QX, United Kingdom; 5PLASMA APP LTD, Oxford , OX11 0QX, United Kingdom;
Type of Paper: Regular
Id Paper: 504
Topic: 14
Abstract:
The method of physical vapor deposition has been tested for the manufacture of electric vehicle lithium-ion battery anodes. The anode was fabricated using Virtual Cathode Deposition1 (VCD) which enables direct deposition of 20 μm thick carbon active material onto a 25 μm polypropylene separator, followed by deposition of a 2 μm copper current collector. Carbon polymorphism2 induced by the deposition process is responsible for active material high gravimetric and volumetric capacity allowing anode areal capacity up to 4.2 mAh/cm2 at the 0.1 C charge rate. The PVD process increases the purity of active materials and quality control compared to the state-of-the-art wet chemical3 method. Currently, the production of a 24 kWh Nissan Leaf’s battery pack requires about 25 MWh, more than 80% of which is spent on drying the electrodes and dry room conditioning. VCD eliminates use of solvents that saves the energy for electrode drying and increase the environmental safety of battery production.
Keywords:
Anodes; Cathodes; Electrochemistry; Graphene; Graphite; Li-Ion; Lithium; SecondaryBattery;References:
1. Yarmolich, D. Patent No. WO2016042530A1 (September 2014).2. Zhao, C. X., Niu, Ch. Y., Qin, Z-J., Ren, X. Y., Wang, J-T., Cho J.H. and Jia, Y. H18Carbon: A New Metallic Phase with sp2-sp3 Hybridized Bonding Network. Sci. Rep. 6, 1–9 (2016).
3. A. Sakti , J. J. Michalek, E. R.H. Fuchs, Jay F. Whitacre., A techno-economic analysis and optimization of Li-ion batteries for light-duty passenger vehicle electrification. Journal of Power Sources 273 (2015)
4. C. Yuan, Ye. Deng, T. Li, F. Yang, Manufacturing energy analysis of lithium ion battery pack for electric vehicles, CIRP Annals - Manufacturing Technology 66 (2017)