Journal ArticleDOI
Water-Soluble Sericin Protein Enabling Stable Solid-Electrolyte Interphase for Fast Charging High Voltage Battery Electrode.
Yuxin Tang,Jiyang Deng,Wenlong Li,Oleksandr I. Malyi,Yanyan Zhang,Xinran Zhou,Shaowu Pan,Jiaqi Wei,Yurong Cai,Zhong Chen,Xiaodong Chen +10 more
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TLDR
A new paradigm for manipulating interfacial chemistry of electrode to solve the key obstacle for LNMO commercialization is heralded, opening a powerful avenue for unlocking the current challenges for a wide family of high operating voltage cathode materials (>4.5 V) toward practical applications.Abstract:
Spinel LiNi0.5 Mn1.5 O4 (LNMO) is the most promising cathode material for achieving high energy density lithium-ion batteries attributed to its high operating voltage (≈4.75 V). However, at such high voltage, the commonly used battery electrolyte is suffered from severe oxidation, forming unstable solid-electrolyte interphase (SEI) layers. This would induce capacity fading, self-discharge, as well as inferior rate capabilities for the electrode during cycling. This work first time discovers that the electrolyte oxidation is effectively negated by introducing an electrochemically stable silk sericin protein, which is capable to stabilize the SEI layer and suppress the self-discharge behavior for LNMO. In addition, robust mechanical support of sericin coating maintains the structural integrity during the fast charging/discharging process. Benefited from these merits, the sericin-based LNMO electrode possesses a much lower Li-ion diffusion energy barrier (26.1 kJ mol-1 ) for than that of polyvinylidene fluoride-based LNMO electrode (37.5 kJ mol-1 ), delivering a remarkable high-rate performance. This work heralds a new paradigm for manipulating interfacial chemistry of electrode to solve the key obstacle for LNMO commercialization, opening a powerful avenue for unlocking the current challenges for a wide family of high operating voltage cathode materials (>4.5 V) toward practical applications.read more
Citations
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Superconcentrated Electrolytes for a High-Voltage Lithium-Ion Battery
TL;DR: In this article, a superconcentrated LiN(SO2F)2/dimethyl carbonate electrolyte was proposed to solve the problem of metal-ion dissolution at high voltages.
Journal ArticleDOI
Designing polymers for advanced battery chemistries
TL;DR: In this paper, the design of polymeric materials for desired mechanical properties, increased ionic and electronic conductivity and specific chemical interactions is discussed, with a specific focus on silicon, lithium-metal and sulfur battery chemistries.
Journal ArticleDOI
Reviving lithium cobalt oxide-based lithium secondary batteries-toward a higher energy density
TL;DR: This review summarizes the key challenges of synthesizing L CO-based LBs with a higher energy density from the perspectives of structure and interface stability, and gives an account of effective modification strategies in view of the electrodes, liquid electrolytes, binders, separators, solid electrolytes and LCO-based full cells.
Journal ArticleDOI
Preparation of MoS2/TiO2 based nanocomposites for photocatalysis and rechargeable batteries: progress, challenges, and perspective
TL;DR: This review highlights the synthesis, structure and mechanism of MoS2/TiO2-based nanomaterials, and advancements and strategies for improving the performance of these composites in photocatalytic degradation, hydrogen evolution, CO2 reduction, LIBs and SIBs are critically discussed.
Journal ArticleDOI
Binder-free 2D titanium carbide (MXene)/carbon nanotube composites for high-performance lithium-ion capacitors
TL;DR: The preparation of titanium carbide/carbon nanotube/CNT flexible self-supporting composite films by vacuum filtration suggests that Ti3C2Tx-CNT films are promising as anode materials for lithium ion capacitors.
References
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Journal ArticleDOI
A Major Constituent of Brown Algae for Use in High-Capacity Li-Ion Batteries
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