Ceder Group Profile
Ceder Group

@cedergroup

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155

Computational and Experimental Design of Emerging materials Research (CEDER) Group at @BerkeleyMSE & @BerkeleyLab

Berkeley, CA
Joined June 2016
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@cedergroup
Ceder Group
4 months
RT @persson_group: The Materials Project is excited to announce MatPES, a quality-over-quantity r2SCAN and PBE dataset for training ML inte….
arxiv.org
Accurate potential energy surface (PES) descriptions are essential for atomistic simulations of materials. Universal machine learning interatomic potentials (UMLIPs)$^{1-3}$ offer a...
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@cedergroup
Ceder Group
5 months
🔬 Can halides be both affordable & high-performing for solid-state batteries? In @ACSEnergyLett, we show that Zr doping in Li₂MgCl₄ stabilizes cation disorder, boosting Li conductivity 100x! A key step toward cost-effective solid electrolytes.
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pubs.acs.org
Halides are promising solid-state electrolytes for all-solid-state lithium batteries due to their exceptional oxidation stability, high Li-ion conductivity, and mechanical deformability. However,...
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@cedergroup
Ceder Group
5 months
🚀 How does LiMXCl₄ achieve record-breaking Li conductivity amongst halide conductors? . Published in @Matter_CP, our study uncovers a "soft cradle effect", where octahedral tilting enhances Li-ion mobility. Read more below 👇#SolidStateBatteries.
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www.cell.com
Li-ion conductors with high ionic conductivity and electrochemical stability are key for safe, energy-dense all-solid-state batteries. In this work, we study the recently discovered Li-ion conductor...
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@cedergroup
Ceder Group
6 months
Can universal MLIPs handle complex atomic environments? 🤔 Our study uncovers systematic PES softening in M3GNet, CHGNet, & MACE-MP-0, linking it to biased pre-training datasets. 🌐 A path forward: better PES sampling! Read here 👇
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www.nature.com
npj Computational Materials - Systematic softening in universal machine learning interatomic potentials
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@cedergroup
Ceder Group
6 months
🚨 Another Exciting Paper! 🚨 We show how electrochemical pulsing accelerates the δ-phase transformation in Mn-rich DRX cathodes, boosting capacity, rate, & cycling stability! 🔋 Read it here 👇
Tweet media one
advanced.onlinelibrary.wiley.com
A method of electrochemical pulsing which forms a spinel-like δ phase in Mn-rich disordered rocksalt materials with Li-excess (DRX) (DRX) cathode materials is demonstrated. This concept is extended...
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@cedergroup
Ceder Group
6 months
🚨 New Paper Alert! 🚨.We investigate phase formation mechanisms in an over-stoichiometric rocksalt-type Li superionic conductor, achieving 1.45 mS/cm at RT via kinetic trapping & post-annealing! Read more below 👇
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advanced.onlinelibrary.wiley.com
The phase formation mechanisms of the over-stoichiometric rocksalt-type Li superionic conductor are systematically investigated. The spinel-like phase with unconventional stoichiometry forms as...
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@cedergroup
Ceder Group
8 months
Uncovering a challenge for Li-NASICON in Li-air batteries! 💥 Our study reveals that water-induced alkalinity triggers phosphate dissolution, leading to bulk degradation. Congrats, Ben and Zhuohan!🔋🌧️ #LiAir Read the full paper here 👇
Tweet media one
advanced.onlinelibrary.wiley.com
The presence of water in the cathode of a Li-air battery shifts reactions to produce LiOH, creating a corrosive, alkaline environment. This study investigates the alkaline stability of the common...
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@cedergroup
Ceder Group
10 months
🚀 Just launched: AlabOS –a Python-based, reconfigurable workflow management framework for autonomous labs. 🧪🤖 Showcased in A-Lab with 3500+ samples synthesized in 1.5 years! 🌟 Great work by @yuxing_fei, @RendyBernardus, and @rekumar_! Read here:
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@cedergroup
Ceder Group
10 months
In another recent study, we screened nitride-based compounds for solid electrolytes with better stability, finding LiPN2 and Li2CN2. While challenges remain, these materials show promise for anode-side separators. Check out the publication here 👇
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@cedergroup
Ceder Group
10 months
Excited to share our new paper in @NatureNano! 🔋 We explore manganese-based Li-ion cathodes, showing how heat treatment creates a nanostructure that boosts rate performance and discharge capacity. Check out the publication 👇
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www.nature.com
Nature Nanotechnology - By inducing a transformation in a manganese-rich cation-disordered rocksalt, partially ordered spinels with nanomosaic domains of 3–7 nm in size can be obtained,...
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@cedergroup
Ceder Group
10 months
💡 What makes a material a good Li-ion conductor? Our latest review paper in Nature Reviews Materials details the design principles that drive fast Li-ion diffusion in inorganic, crystalline structures. Check out the publication 👇
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www.nature.com
Nature Reviews Materials - Inorganic lithium superionic conductors are central to the development of solid-state batteries, but the availability of practical superionic conductors is still limited....
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@cedergroup
Ceder Group
1 year
Li2CO3 is a critical precursor for cathode synthesis which we show can be extracted directly from α-spodumene through solid-state reactions with Na2CO3 and Al2O3. Check the publication 👇.
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pubs.acs.org
With increasing battery demand comes a need for diversified Li sources beyond brines. Among all Li-bearing minerals, spodumene is most often used for its high Li content and natural abundance....
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@cedergroup
Ceder Group
1 year
RT @NJSzymanski: Our latest work on understanding solid-state synthesis is out now in @ScienceAdvances where we use in-situ XRD to show tha….
www.science.org
In situ characterization reveals the conditions where reaction outcomes can be predicted using thermodynamic calculations.
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@cedergroup
Ceder Group
1 year
RT @julia_h_yang: I'm elated to be joining @GTChBE and @GeorgiaTech in Jan. 2025! My group will focus on electrochemical interfaces and bat….
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@cedergroup
Ceder Group
1 year
Great insights from @zhongpc et al. on cation disorder in halide superionic conductors using thermodynamic & kinetic modeling. A nice combo of Cluster Expansion + ML Potential! 💡 #SolidStateElectrolyte #AI4Material.
@ACSEnergyLett
ACSEnergyLett
1 year
Effect of Cation Disorder on Lithium Transport in Halide Superionic Conductors | ACS Energy Letters
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@cedergroup
Ceder Group
1 year
RT @zhongpc: Why can cation disorder improve the ionic conductivity in solid-state electrolytes? Why is mechanochemical ball-milling typica….
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pubs.acs.org
Li2ZrCl6 (LZC) is a promising solid-state electrolyte due to its affordability, moisture stability, and high ionic conductivity. We computationally investigate the role of cation disorder in LZC and...
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@cedergroup
Ceder Group
1 year
💡Why does fine-tuning work well with pre-trained universal MLIP? We benchmarked several uMLIPs and discovered a systematic PES softening effect, which suggests that a considerable fraction of errors can be efficiently corrected. Check the preprint. 👇.
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@cedergroup
Ceder Group
1 year
RT @ChemMater: Oxygen Transport through Amorphous Cathode Coatings in Solid-State #Batteries. By @KPatBerkeley @cedergroup et al. @UCBerkel….
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