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SCCER Heat and Electricity Storage
www.sccer-hae.ch
Materials Innovation for Next-Generation Batteries Corsin Battaglia - - PowerPoint PPT Presentation
Materials Innovation for Next-Generation Batteries Corsin Battaglia - - PowerPoint PPT Presentation
Willkommen Welcome Bienvenue Materials Innovation for Next-Generation Batteries Corsin Battaglia SCCER HaE Annual Symposium 2018 SCCER Heat and Electricity Storage www.sccer-hae.ch Next-generation lithium-ion batteries Cathode Anode Team
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Next-generation lithium-ion batteries
State-of-the-art: 220 Wh/kg SCCER target: 275 Wh/kg
Cathode Team Battaglia Empa Anode Team Kovalenko ETH/Empa
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70% after 500 cycles
Energy density on cell level
Charge 0.5 C Discharge 1.0 C Temperature 25°C Remaining capacity 70% DOD 0%-100%, 500 cycles DOD 6%-94%, 7’500 cycles DOD 8%-92%, 15’000 cycles DOD 10%-90%, 28’000 cycles DOD 20%-80%, 35’000 cycles
http://blog.evandmore.com/lets-talk-about-the-panasonic-ncr18650b/
last 10% capacity during 70 min 90% after 180 cycles
Panasonic NCR18650B LG INR MJ1 Samsung SDI INR 35E
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How to reach 220 Wh/kg?
Synthesis
- Automated co-precipitation reactor
- Shape controlled synthesis
- Validation with NMC111
30 Wh/kg
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How to reach 220 Wh/kg?
- Slurry formulation
- Tape casting
- Drying and calendering
- Automated co-precipitation reactor
- Shape controlled synthesis
- Validation with NMC111
Synthesis Coating
150 Wh/kg
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220 Wh/kg
How to reach 220 Wh/kg?
- Slurry formulation
- Tape casting
- Drying and calendering
Stacking
- Stacking
- Automated co-precipitation reactor
- Shape controlled synthesis
- Validation with NMC111
Synthesis Coating
Team Fürst BFH
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How to go beyond 220 Wh/kg?
- Increase nickel content
- Reduce cobalt content
- Gain in energy density & cost reduction
- Sacrificial electrolyte additives
- 91% capacity retention after 200 cycles
- Still suffer from impedance growth
Electrolyte Synthesis
Vidal Laveda et al. in preparation
275 Wh/kg
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Non-flammable electrolytes
- Stability window of water 1.23 V
- High salt concentration to reach 2.6 V
- 77% capacity retention after 500 cycles
Kühnel et al. Chem. Comm. 2016 Kühnel et al. ACS Energy Express 2017 Reber et al. ACS Sust. Energy Fuels 2017 Reber et al. submitted
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Non-flammable electrolytes
- Stability window of water 1.23 V
- High salt concentration to reach 2.6 V
- 77% capacity retention after 500 cycles
Kühnel et al. Chem. Comm. 2016 Kühnel et al. ACS Energy Express 2017 Reber et al. ACS Sust. Energy Fuels 2017 Reber et al. submitted
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Non-flammable electrolytes
- Stability window of water 1.23 V
- High salt concentration to reach 2.6 V
- 77% capacity retention after 500 cycles
Kühnel et al. Chem. Comm. 2016 Kühnel et al. ACS Energy Express 2017 Reber et al. ACS Sust. Energy Fuels 2017 Reber et al. submitted
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B12H12
2-
B10H10
2-
Na+
Solid-state electrolytes
Duchêne et al. Chem. Comm. 2017 Yan et al. Adv. Energy Mater. 2017 Roedern et al. Sci. Reports 2017 SNF Sinergia w/ UniGe & PSI
- Closoborate salts
- Suppression of transition by 1:1 anion mixing
- Thermally stable up to at least 300 °C
- ~1 mS/cm at room temperature
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- 3 V stability window
- Compatible with sodium metal anode
- Low overpotential for sodium plating/stripping
3.0 V plating
Solid-state electrolytes
Duchêne et al. Energy and Environ. Sci. 2017 Patent application submitted SNF Sinergia w/ UniGe & PSI
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Solid-state electrolytes
Duchêne et al. Energy and Environ. Sci. 2017 Patent application submitted SNF Sinergia w/ UniGe & PSI 3.0 V plating
- 3 V stability window
- Compatible with sodium metal anode
- Low overpotential for sodium plating/stripping
- Candidate cathode material NaCrO2
- 85% capacity retention after 250 cycles
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L i - I o n N a N i C l N a - I o n
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4
1
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