Nanocrystals embedded in nanoporous carbon increase energy-storage capacity
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nels.” While the initial study was focused on intercalation of Li ions into confined nanocrystals, “the approach may be adjusted for use with other metal-ion chemistries (Na, K, Ca, Cs, etc.), thus offering multiple avenues for the formation of high power devices to satisfy the rapidly growing industrial demands,” he says. Team member Enbo Zhao adds, “Our work demonstrated a simple, scalable and broadly applicable synthetic methodology to produce nanocomposite powders for drop-in replacement in commercial supercapacitor or battery production lines.” Yushin, along with Georgia Tech team members Zhao and Seth Marder, as well as collaborators from Heilongjiang University (China) and Sila Technologies, highlighted their approach in a recent issue of ACS Nano (doi:10.1021/acsnano.6b00479). They focused on lithium titanate (Li4Ti5O12), or LTO, as the anode material. They grew tiny LTO nanoparticles directly inside porous-activated carbon particles. This method significantly improved the anode’s interparticle electrical conductivity and effectively controlled the 0.5– 4 nm crystal size of the LTO domains. Yushin and his team members relied on a finely tuned mesoporous-activated carbon and a controlled wet chemistry method to deposit LTO precursors into the pores and thermally synthesize the
• VOLUME • JUNE MRS BULLETINCore 41use, 2016 •atwww.mrs.org/bulletin Downloaded from https://www.cambridge.org/core. IP address: 80.82.77.83, on 15 Aug 2017 at 10:45:01, subject to the Cambridge terms of available https://www.cambridge.org/core/terms. https://doi.org/10.1557/mrs.2016.121
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