Scalable Nanomaterials and Nanostructures for Energy and Flexible Electronics

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Pamela Robinson
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1 Scalable Nanomaterials and Nanostructures for Energy and Flexible Electronics Liangbing (Bing) Hu MSE & Energy Center University of Maryland College Park 1

80 Flexible or origami electronics 1 PET

Transmittance (%) Development of Gen 1, 2,

Transmission haze (%) 60 40 20 Solar cells

2 Transparent Paper from Wood Cellulose Transparent paper for flexible electronics Novel structures Scalable fabrication method Fundamental properties Replace plastics with better performance Both strong and tough 100 Lightweight materials 80 Flexible or origami electronics 1 PET Displays Glass Transmittance (%) Development of Gen 1, 2, 3 and 4 transparent paper Tunable optical properties Demonstrate proof-of-concept devices (transistor, touch screen, OLED, solar cells ~ 10 publications, 1 patent applications, ~10 invited talks Transmission haze (%) Solar cells Our transparent paper Nanopaper Client AFOSR YIP DuPont, Versopaper UMD- Teng Li, Jeremy Munday

Wood-Fiber Based Energy Storage Mesoscience in wood

Supercapacitors, batteries Low cost Benefit from

storage Na-ion battery anode with 200 mah/g MnO 2

in Nano Lett 2013 (widely reported) NSF, DOE Fast

3 Wood-Fiber Based Energy Storage Mesoscience in wood fibers Low-cost energy storage (< 50$/kWh) Supercapacitors, batteries Low cost Benefit from paper manufacturing infrastructure Flexible energy storage Na-ion battery anode with 200 mah/g MnO 2 supercapacitor cycling for 20,000 cycles Published in Nano Lett 2013 (widely reported) NSF, DOE Fast ion transport Mechanical UMD-Teng Li, Gary Rubloff, Sangbok Lee

component in fibers Highly conductive fibers based on CNT-NFC hybrids through alignment (300-500 S/cm) Highly thermally

4 Multi-Functional Fibers From Nanocellulose by Wet-Spinning Use nanocellulose fiber and (reduced) graphene oxide or CNT toward multifunctional fibers Fiber diameter ~ micro Single fiber measurement Low cost NFC as dispersion agent (ink) and key component in fibers Highly conductive fibers based on CNT-NFC hybrids through alignment ( S/cm) Highly thermally conductive fibers NFC-GO fiber that is strong than NFC fiber or GO fiber a NSF (Pending) b GO nanosheet GO nanosheet NFC C a 2+ Ca 2+ UMD-Teng Li

nanocomposites with solution based BN NFC

5 Thermally Conductive Films with BN Nanosheets Highly thermally conductive nanocomposites with solution based BN NFC to disperse BN NFC to mechanically link BN nanosheets Thermal management (e.g. batteries) W/mK is achieved Scalable BN nanosheet ink Manuscript in ACS Nano AFOSR, DOD STTR (pending), AllCellTech UMD-Bao Yang

Electrochemical Modulations of 2D Optoelectronics Nano-battery platform

modulations Understand battery kinetics Replace ITO transparent

performance in Rs/T Manuscript in Nature Comm (under minor revision)

6 Electrochemical Modulations of 2D Optoelectronics Nano-battery platform to study optical, electrical properties under electrochemical modulations Understand battery kinetics Replace ITO transparent electrode Performance beyond graphene limit (3 Ohm/sq, >92%) Best performance in Rs/T Manuscript in Nature Comm (under minor revision) 1000 NSF (Pending) σ dc /σ opt 500 UMD-Mike Fuhrer 0 LiC6 Theor graph FeCl3 graph ITO P doped graph CNT

Na-ion Batteries with Sn Nanoparticles Ultra-thin Al 2 O 3 nanoglue to improve performance of Sn anode for

0 Highest capacity of Sn anode for Na-ion (~ 600 mah/g) In-situ TEM investigation of sodiation-desodiation

Na + /Na) 1200 1000 800 600 400 200 0 2.5 2.0 1 st 1.5 1.0 0.5 0.

7 Na-ion Batteries with Sn Nanoparticles Ultra-thin Al 2 O 3 nanoglue to improve performance of Sn anode for Na-ion batteries Mixed electronic and ionic conductivity Low-cost energy storage for Grid 3.0 Highest capacity of Sn anode for Na-ion (~ 600 mah/g) In-situ TEM investigation of sodiation-desodiation process at the nanoscale Published in Nano Lett 2013 DOE EFRC UMD-Teng Li Charge capacity (mah/g) Voltage (V vs. Na + /Na) st th 10 th 1 st Capacity (mah/g) with Al 2 O 3 without Al 2 O Cycle number with Al 2 O 3 40 th 10 th Coulombic efficiency (%)

8 All-Solid State Batteries (High Voltage, Li-S) Safe 6V Li-ion with Garnet electrolyte Safe Li-S with Garnet electrolyte Vehicle applications Space applications Garnet electrode ~10-3 S/cm Stable vs. Li metal Stable up to 6 V DOE ARPA-E UMD-Eric Wachsman For More information, please contact Dr. Eric Wachsman ( ewach@umd.edu) or Dr. Liangbing (Bing) Hu (binghu@umd.edu)

Roll-To-Roll Films with Nano-carbon Inks Scalable ink for

printing Graphene Carbon nanotube To replace ITO transparent

without surfactant Scalable coating of graphene ink 3-year

9 Roll-To-Roll Films with Nano-carbon Inks Scalable ink for roll-to-roll printing Ink characterizations and scalable printing Graphene Carbon nanotube To replace ITO transparent electrode Multifunctional structures Aqueous graphen ink without surfactant Scalable coating of graphene ink 3-year industry experience on roll-to-roll CNT printing/device integration NSF UMD-John Cumings

10 Holey-Graphene and Its Nanostructures Scalable synthesis of holey graphene Self-assembly for nanostructures Edge functionalization Energy and lightweight materials Enable better packing toward high density Fast ion transport through plane (low tortuosity) Rich surface chemistry for hybrid structures Scalable synthesis Reach excellent capacity per volume in supercapacitors with ionic liquid electrolyte Selective functionalization on graphene edges Improved mechanical properties compared with pristine graphene Manuscript in preparation NASA (Pending) NIA Yi Lin Central Michigan U (Veronica Barone) UMD- Teng Li For More information, please contact Dr. Yi Lin (yi.lin-1@nasa.gov) ) or Dr. Liangbing (Bing) Hu (binghu@umd.edu)

11 Nanomanufacturing in Paper and Textile 11

Materials and Structural Design for Advanced Energy Storage Devices

Materials and Structural Design for Advanced Energy Storage Devices Imran Shakir Sustainable Energy Technologies Center (SET) King Saud University Saudi Arabia Specific Power (W/kg) Introduction and Motivation