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µÚÒ»×÷ÕߣºNitin Muralidharan

ͨѶ×÷ÕߣºNitin Muralidharan, Ilias Belharouak

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Figure 1. a) Battery material price trends from 2010 to 2021. b) Market flow chart for cobalt. c) Model highlighting the depletion of global cobalt reserves specifically available for battery industries.

 

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Figure 2. Potential of Co-free cathode materials for low-cost LIBs. Cost projections are based on producing 1 million EVs with a 200-mile range powered by 58.8 kWh LIB packs.

 

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Figure 3. a) Crystal structures of mainstream Li-ion cathodes such as layered, spinel, and olivine systems (viewed along the a-axis). Crystallographic structures were generated using VESTA software. b) Operating potential, specific capacity, and specific energy of several such cathodes.

 

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Figure 4. Electrochemical and thermal performance of Mn-substituted LNO cathodes.

 

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Figure 5. a) Galvanostatic charge/discharge plots (top) and dQ/dV profiles (bottom) for several doped LNO systems. b) Thermal stabilities of doped LNO systems determined through accelerated rate calorimetry tests. c) Electrochemical performance of doped LNO systems compared to commercial NCA cathodes. 

 

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Figure 6. NFA class of cobalt-free, nickel-rich cathodes. a) Schematic showing the benefits of Al and Fe additions. b) Neutron powder diffraction patterns of the NFA compositional variants. c) Schematic representation of the scale-up process for the NFA material. d) Precipitation behavior of iron, nickel, aluminum, and the NFA materials. e) Electrochemical cycling performance NFA cathodes.

 

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Figure 7.a) Phase diagram showing potential cobalt-free cathode materials. b) Charge/discharge profiles of common cobalt-free cathode materials including NM82, NMT, NMM, and NMA in the voltage range of 2.8–4.5 V (0.1 C). c) Cycling performance of the cathode materials at C/3.

 

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Figure 8. a) DRX cathode crystal structure and b) Several local bonding environment possible in DRX cathodes.

 

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ÎÄÏ×ÐÅÏ¢£º

Muralidharan, N., Self, E. C., Dixit, M., Du, Z., Essehli, R., Amin, R., Nanda, J., Belharouak, I., Next-Generation Cobalt-Free Cathodes – A Prospective Solution to the Battery Industry's Cobalt Problem. Adv. Energy Mater. 2022, 12, 2103050.

https://doi.org/10.1002/aenm.202103050
 

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