The team has recently developed a novel methodology to annalyze the decomposition product of electrolyte and additives by using an on-electrode chromtography and matrix-assisted laser desorption/ionization (MALDI). This work was published on Joule https://www.cell.com/joule/fulltext/S2542-4351(20)30611-5, and was highlited on Berkeley Lab news center website https://newscenter.lbl.gov/2021/01/14/new-research-technique-sheds-light.... Congratulations!
The team's work on micelle electrolyte has been selected by ResearchOutreach and wad highlighted on thier magazine (Jan edition), issue 120. Check out the links below for details:
Warmly welcome our new members- Tianyu Zhu and Nhan Tran! Tianyu joined the group since October 2020, graduated from U South Carolina with a PhD degree in Organic Chemistry, and is currently leading effort to synthesize and test polymer binder materials for Si/SiO2 anode. Nhan joined group since Dec 2020. He recieved a Ph.D degree in Energy Science and Engineering in DGIST, South Korea in 2020. He is currently working on Si anode and Li-S projects.
We wish them off to a good start on the job!
At the end of September, we are farewell to our group member Zhimeng Liu, a visiting graduate student from Sichuan U (China), who has been in the group since Sept, 2018 and will be back to China to defend his thesis based on the work he has done here at LBNL. We sincerely wish him good luck to the thesis defense and all the best to his future endeaver!
At the same time, we welcome our new member Joe Papp. Joe is a feshly minted doctor who just defended his thesis in Chemical Enegineering (UC Berkeley) in August, and he will lead effort to test electrochemical properties of phase change materials and solid state battery. We wish him off to a good start on the job!
Virtual farewell party for Zhimeng
Congratulations to Zhimeng Liu and coauthors on the recent publication of their article "Reversible Crosslinked Polymer Binder for Recyclable Lithium Sulfur Batteries with High Performance" in Advanced Functional Materials! This paper details a novel Li-S binder system consisting of commercially-available poly(acrylic acid) and poly(ethyleneimine), which react to form a dissolvable ionic crosslinked polymer (DICP) network. Not only does this binder lend improved cycling performance to sulfur/carbon composite cathodes, but it readily dissolves under basic aqeuous conditions, paving the way for easy recycling of used Li-S cells.
Following the link below, check out our new paper "A Micelle Electrolyte Enabled by Fluorinated Ether Additives for Polysulfide Suppression and Li Metal Stabilization in Li-S Battery", published on Frontiers Chemistry on Jun 19th, 2020. This paper introduced our pioneering research on developing fluorinated electrolyte addtives for advanced battery applications. As demonstrated in the paper, the novel electrolyte additive is validated to be effective addressing polysulfide dissolution and Li metal incompatibility issues in the Li-S cells. This paper was collaborated with Dr. Chenhui Zhu, beamline scientist from Advnaced Light Source (ALS), LBNL.
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