Graphene oxide (GO) slurries were deposited onto copper foil for use in lithium-ion battery anodes to determine the best deposition method(s) for research or high-volume manufacturing. Four deposition methods were tested: doctor blade, Mayer rod, slot die, and low volume low pressure (LVLP) spray. Analytical models that link tooling and process characteristics to mass flow rate of slurry and the resulting dry deposition height are developed and validated experimentally. While all methods successfully produced functioning batteries, a number of different qualitative and quantitative metrics from experimental results identified the best method for both situations. Observations were recorded on adhesion, deposition consistency, usability, and cleanability. Data on specific discharge capacity were recorded to show performance over the anode lifetime and at different charge/discharge rates. The data indicate that anodes produced using reduced graphene oxide (rGO) deliver a specific charge storage capacity of 50 to 400 mAh/g at charge–discharge rates of 1 C to 0.05 C. Doctor blading proved to be best for laboratory setups because of its adjustability, while the Mayer rod shows promise for high-volume manufacturing due to better performance and the use of nonadjustable, dedicated tooling. All methods, analysis, and metrics are discussed.

References

References
1.
Tarascon
,
J.-M.
, and
Armand
,
M.
,
2001
, “
Issues and Challenges Facing Rechargeable Lithium Batteries
,”
Nature
,
414
(
6861
), pp.
359
367
.
2.
Novoselov
,
K. S.
, Fal'ko, V. I., Colombo, L., Gellert, P. R., Schwab, M. G., and Kim, K.,
2012
, “
Roadmap for Graphene
,”
Nature
,
490
(
7419
), pp.
192
200
.
3.
Cote
,
L.
,
Cruz-Silva
,
R.
, and
Huang
,
J.
,
2009
, “
Flash Reduction and Patterning of Graphite Oxide and Its Polymer Composite
,”
J. Am. Chem. Soc.
,
131
(
31
), pp. 11027–11032.
4.
Mukherjee
,
R.
,
Thomas
,
A. V.
,
Krishnamurthy
,
A.
, and
Koratkar
,
N.
,
2012
, “
Photo-Thermally Reduced Graphene as High Power Anodes for Lithium Ion Batteries
,”
ACS Nano
,
6
(
9
), pp.
7867
7878
.
5.
Mukherjee
,
R.
,
Thomas
,
A. V.
,
Datta
,
D.
,
Singh
,
E.
,
Li
,
J.
,
Eksik
,
O.
,
Shenoy
,
V. B.
, and
Koratkar
,
N.
,
2014
, “
Defect Induced Plating of Lithium Metal Within Porous Graphene Networks
,”
Nat. Commun.
,
5
, p.
3710
.
6.
Xiang
,
F.
,
Mukherjee
,
R.
,
Zhong
,
J.
,
Xia
,
Y.
,
Gu
,
N.
,
Yang
,
Z.
, and
Koratkar
,
N.
,
2015
, “
Scalable and Rapid Far Infrared Reduction of Graphene Oxide for High Performance Lithium Ion Batteries
,”
Energy Storage Mater.
,
1
, pp.
9
16
.
7.
Xiang
,
F.
,
Zhong
,
J.
,
Gu
,
N.
,
Mukherjee
,
R.
,
Oh
,
I.-K.
,
Koratkar
,
N.
, and
Yang
,
Z.
,
2014
, “
Far Infrared Reduced Graphene Oxide as High Performance Electrodes for Supercapacitors
,”
Carbon
,
75
, pp.
201
208
.
8.
Mukherjee
,
R.
,
Krishnan
,
R.
,
Lu
,
L.-M.
, and
Koratkar
,
N.
,
2012
, “
Nanostructured Electrodes for High-Power Lithium Ion Batteries
,”
Nano Energy
,
1
(
4
), pp.
518
533
.
9.
Brodd
,
R.
,
2012
,
Batteries for Sustainability: Selected Entries From the Encyclopedia of Sustainability Science and Technology
,
Springer Science & Business Media
, New York, p.
335
.
10.
Wang
,
J.
, Liang, M., Fang, Y., Qiu, T., Zhang, J., and Linjie, Z.,
2012
, “
Rod-Coating: Towards Large-Area Fabrication of Uniform Reduced Graphene Oxide Films for Flexible Touch Screens
,”
J. Adv. Mater.
,
24
(
21
), pp.
2874
2878
.
11.
PVA, 2017, “FCS300, Stainless Steel Spray Valve,” PVA, Cohoes, NY, accessed Nov. 15, 2017, http://pva.net/img/products/datasheet_gjkkjxque3.pdf
12.
Chou
,
Y.
,
Ko
,
Y.
, and
Yan
,
M.
,
1987
, “
Fluid Flow Model for Ceramic Tape Casting
,”
J. Am. Ceram. Soc.
,
70
(
10
), pp.
C280
C282
.
13.
Graphenea, 2017, “Graphenea,” Graphenea Inc., Cambridge, MA, accessed Nov. 15, 2017, https://www.graphenea.com/products/reduced-graphene-oxide-1-gram
14.
Fox
,
R.
,
Pritchard
,
P.
, and
McDonald
,
A.
,
2009
,
Introduction to Fluid Mechanics
,
Wiley
, Hoboken, NJ, pp.
309
335
.
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