A5024594433- Advancements in Battery Materials
- Advanced Battery Materials and Technologies
- Advanced Battery Technologies Research
- Supercapacitor Materials and Fabrication
- Extraction and Separation Processes
- Thermal Expansion and Ionic Conductivity
- Chemical Synthesis and Characterization
- Ferroelectric and Piezoelectric Materials
- Advanced battery technologies research
- Semiconductor materials and devices
- Perovskite Materials and Applications
- Inorganic Chemistry and Materials
- Transition Metal Oxide Nanomaterials
- Electronic and Structural Properties of Oxides
Shanghai University
2023-2024
Nankai University
2023
Collaborative Innovation Center of Chemistry for Energy Materials
2019-2022
Fudan University
2019-2022
University of Maryland, College Park
2020
Rensselaer Polytechnic Institute
2020
Hard carbons, as one of the most commercializable anode materials for sodium-ion batteries (SIBs), have to deal with trade-off between rate capability and specific capacity or initial Columbic efficiency (ICE), fast performance decline at low temperature (LT) remains poorly understood. Here, a comprehensive regulation on interfacial/bulk electrochemistry hard carbons through atomic Zn doping is reported, which demonstrates record-high reversible (546 mAh g-1 ), decent ICE (84%), remarkable...
Polymer-in-ceramic composite solid electrolytes (PIC–CSEs) provide important advantages over individual organic or inorganic electrolytes. In conventional PIC–CSEs, the ion conduction pathway is primarily confined to ceramics, while faster routes associated with ceramic–polymer interface remain blocked. This challenge two key factors: (i) difficulty in establishing extensive and uninterrupted interfaces due ceramic aggregation; (ii) are unresponsive conducting ions because of their inherent...
Abstract The application of Li anodes is hindered by dendrite growth and side reactions between electrolyte, despite its high capacity low potential. A simple approach for this challenge now demonstrated. In our strategy, the garnet‐type 6.4 La 3 Zr 1.4 Ta 0.6 O 12 (LLZTO)‐based artificial solid–electrolyte interphase (SEI) anchored on Cu foam sintering coated with LLZTO particles. heat treatment leads to interdiffusion 2 5 at Cu/LLZTO interface, through which layer fixed foam. 3D structure...
Various artificial interlayers like metal/metallic oxides have been introduced to improve Li wettability through alloy reaction for the Li/garnet interface. However, huge volume change during continuous alloying/dealloying process is detrimental rigid solid-to-solid contact of and subsequently leads instability polarization voltage. Herein, we demonstrate an improved interlayer Cu6Sn5 simultaneously restrict ensure intimate It proved that Cu atom in cannot only mitigate but also restrain...
The high interfacial resistance and lithium (Li) dendrite growth are two major challenges for solid-state Li batteries (SSLBs). lack of understanding on the correlations between electronic conductivity formation limits success SSLBs. Here, by diluting conductor from interphase to bulk during annealing aluminium nitride (AlN) interlayer, we changed mixed ionic/electronic conductive solely ionic conductive, lithiophilic lithiophobic fundamentally understand correlation among conductivity,...
Abstract Sodium super ionic conductor (NASICON)‐type Li 1.3 Al 0.3 Ti 1.7 (PO 4 ) 3 (LATP) is one of the most promising solid‐state electrolytes (SSEs) owing to its high Li‐ion conductivity, stability with air, and low cost. However, LATP less widely deployed due incompatibility lithium metal. Herein, a facile inexpensive spray‐coating approach proposed construct thin 3D organic/inorganic composite layer commercial boron nitride‐based release agent (BNRA) onto LATP. Apart from protecting...
Abstract Sodium ion batteries (SIBs) have attracted great interest as candidates in stationary energy storage systems relying on low cost, high abundance and outstanding electrochemical properties. The foremost challenge advanced NIBs lies developing high-performance low-cost electrode materials. To accelerate the commercialization of sodium batteries, various types materials are being developed to meet increasing demand. O3-type layered oxide cathode show potential for commercial...
Applying interlayers is the main strategy to address large area specific resistance (ASR) of Li/garnet interface. However, studies on eliminating Li2 CO3 and LiOH interfacial lithiophobic contaminants are still insufficient. Here, thermal-decomposition vapor deposition (TVD) a carbon modification layer Li6.75 La3 Zr1.75 Ta0.25 O12 (LLZTO) provides contaminant-free surface. Owing protection layer, air stability LLZTO also improved. Moreover, owing amorphous structure low graphitized (LGC),...
Abstract Sulfide solid electrolytes with high conductivity that is close to of liquid electrolyte have been considered be one the most promising for all‐solid‐state lithium batteries (ASSLBs). Unfortunately, narrow electrochemical windows sulfide and contact loss at interface upon cycles much limits application sulfide‐based ASSLBs. In this work, an organic quinone cathode, 5,7,12,14‐pentacenetetrone (PT), used fabricate ASSLB a glass ceramic 70Li 2 S‐30P S 5 (LPS). Based on various in...
Zero-sodium-excess solid-state batteries (ZSBs) are promising to overcome the disadvantage of low energy density for Na-ion batteries, but interfacial issues between electrolytes and current collectors remain bottlenecks their practical applications. Herein, we report a self-regulated stratification artificial interphase through conversion reaction MgF2 modification layer Na metal. Ascribed huge adsorption difference Al–Mg Al–NaF, sodiophilic Mg concentrated at bottom side served as...
High nickel and Co-free layered cathodes (LiNi0.9Mn0.1O2, NM) for lithium-ion batteries (LIBs) have gained researchers' interest recently because of their high energy density being free toxic elements, but they still suffer from inferior electrochemical performance due to the lattice instability during cycling. Herein, we successfully improved NM using a high-entropy strategy. A multidoped LiNi0.9Mn0.05Zr0.01Nb0.01Ti0.01Al0.01Mg0.01O2 (HE-NM, where HE represents entropy with Zr, Nb, Ti, Al,...
High voltage spinel LiMn1.5Ni0.5O4 (LMNO) is a promising energy storage material for the next generation lithium batteries with high densities. However, due to major controversies in synthesis, structure, and interfacial properties of LMNO, its unsatisfactory performance still challenge hindering technology's practical applications. Herein, this paper provides general characteristics such as electrochemical properties, phase transition. In addition, factors electrolyte decomposition...
Garnet-based bulk-type all-ceramic lithium battery (ACLB) is considered to be highly safe, but its electrochemical performance severely hindered by the huge cathode/electrolyte interfacial resistance. Here, we demonstrate an in situ coated Li2.985B0.005OCl as sintering solder, which uniformly on both LiCoO2 and Li7La3Zr2O12. With low melting point (267°C) high ionic conductivity (6.8 × 10−5 S cm−1), solder not only restricts La/Co interdiffusion, also provides fast Li+ transportation...
Abstract Lithium fluoride (LiF)‐rich solid‐electrolyte interface (SEI) layers are reported as an effective method to suppress lithium dendrites growth and capacity fading for Li‐plating/Li‐stripping. Herein, a new pre‐fluorination strategy is proposed by constructing MgF 2 thin film on pristine copper foil via the magnetron sputtering. This proves lithiophilic substrate shows highly irreversible conversion reaction LiF in first cycle. The resulting uniform LiF‐rich dual‐layered SEI layer...
The oxide-based all ceramic lithium battery (ACLB) is regarded as one of the safest secondary batteries because it incombustible and free toxic gas release. However, high temperature sintering a necessary step to fabricate solid-state electrolytes (SSEs) membranes improve cathode/SSEs interfacial contact, which bring in energy consumption well formation Li-ion resistive interdiffusion phases. Here, we report an situ coating lithium-rich antiperovskites (LiRAPs) aids solder LiCoO2 (LCO)...