A5017995873- Advancements in Battery Materials
- Advanced Battery Materials and Technologies
- Advanced Battery Technologies Research
- Supercapacitor Materials and Fabrication
- Extraction and Separation Processes
- Conducting polymers and applications
- Dielectric materials and actuators
- Polyoxometalates: Synthesis and Applications
- MXene and MAX Phase Materials
- Synthesis and properties of polymers
- Advanced Sensor and Energy Harvesting Materials
- Inorganic Chemistry and Materials
Tianjin University of Technology
2017-2024
Nankai University
2019-2024
NorthEast Regional Epilepsy Group
2018
Tiangong University
2017
The strategies for achieving a high cationic transport polymer electrolyte (HTPE) have mostly focused on developing single-ion conducting electrolytes, which is far from being practical due to sluggish ion transport. Herein, we present an unprecedented approach designing HTPE via in situ copolymerization of regular ionic and monomers the presence lithium salt. HTPE, i.e., poly(VEC10-r-LiSTFSI), exhibits combination impressive properties, including number (0.73), conductivity (1.60 mS cm–1),...
Although numerous studies on polymeric protective films to stabilize lithium (Li)-metal electrodes have been reported, the construction of self-healing polymers that enables long-term operation Li-metal batteries (LMBs) at relatively low temperatures has rarely demonstrated. Herein, a highly stretchable, autonomous self-healable, and ionic-conducting polymer network (SHIPN) is synthesized as an efficient film for LMBs. The backbone, from copolymerization poly(ethylene...
Abstract The practical application of lithium (Li) metal battery is impeded by the Li dendrite growth and unstable solid electrolyte interphase (SEI) layer. Herein, an ultra‐stretchable ionic conducting chemically crosslinked pressure‐sensitive adhesive (cPSA) synthesized via copolymerization 2‐ethylhexyl acrylate acrylic acid with poly(ethyleneglycol)dimethacrylate as crosslinker (short for 70cPSA), developed both artificial SEI layer polymer (SPE) stable Li‐metal electrode, enabling...
By integrating polyethylene fiber and a rationally designed, in situ formed polymer network, an ultra-thin, flexible high mechanical robustness solid electrolyte with thickness of ≈5 μm is constructed.
Abstract Lithium‐metal batteries (LMBs) are considered one of the most promising next‐generation high‐energy‐density battery systems. However, leakage problem and fire hazard commercial liquid electrolytes hinder their practical applications. Herein, a flame‐retardant solid polymer electrolyte (FRSPE) is fabricated by in situ polymerization methyl methacrylate (MMA), allyl diglycol carbonate (ADC), monomer, i.e., diethyl vinyl phosphonate (DEVP), which phosphorus chemically bonded to matrix...
The major cause for capacity fading of silicon nanoparticle (SiNP)-based electrodes is the immense pressure applied toward conductive networks during charge/discharge process. While numerous efforts have been devoted to investigating different types polymer binders, rational design an adhesive binder with sensitivity has rarely reported. Herein, a series pressure-sensitive adhesives (PSAs) synthesized via copolymerization 2-ethylhexyl acrylate (2-EHA) and acrylic acid (AA) are evaluated as...
Abstract The practical application of lithium (Li) metal batteries (LMBs) is significantly hindered by the uncontrolled Li dendrite growth and unstable solid electrolyte interphase layer, which leads to low Coulombic efficiency short cycling lifetime. Constructing protective layers on surface demonstrated as a facile efficient approach tackle these issues. With superior chemical/electrochemical stability, mechanical robustness, high current density tolerance, cost, porous polymers are...
A Ni/Mn-graded surface is proposed to suppress the unwanted phase transformations and side-reactions of high-energy lithium-rich layered oxide cathodes, thus mitigate their capacity voltage decay.
Lithium (Li) metal is a highly promising anode material for next-generation high-energy-density batteries, while Li dendrite growth and the unstable solid electrolyte interphase layer inhibit its commercialization. Herein, chemically grafted hybrid dynamic network (CHDN) rationally designed synthesized by 4,4'-thiobisbenzenamine cross-linked poly(poly(ethylene glycol) methyl ether methacrylate-r-glycidyl methacrylate) (3-glycidyloxypropyl) trimethoxysilane-functionalized SiO2 nanoparticles,...
Metallic lithium (Li) is considered as the "Holy Grail" anode material for next-generation energy storage systems due to its extremely high theoretical capacity and low electrochemical potential. Before commercialization of Li electrode, dendritic growth unstable solid electrolyte interphase layer should be conquered. Herein, a hybrid covalent adaptable polymer network (HCAPN) prepared via random copolymerization poly(ethylene glycol) methyl ether methacrylate -acetoacetoxyethyl...
Although solid polymer electrolytes (SPEs) hold great promise for high-performance lithium metal batteries (LMBs), the low ionic conductivity and narrow electrochemical window limit their practical application. Herein, we report an...
Solid polymer electrolytes (SPEs) have great potential to enable stable lithium-metal batteries (LMBs), while safety concern still limits their practical applications. With numerous reports on developing flame-retardant properties of SPEs,...
With numerous reports on protecting films for stable lithium (Li) metal electrodes, the key attributes how to construct these efficient layers have rarely been fully investigated. Here, we report a rationally designed hybrid protective layer (HPL) with each component aligning one attribute; i.e., cross-linked poly(dimethylsiloxane) (PDMS) enhances flexibility, polyethylene glycol (PEG) provides homogeneous ion-conducting channels, and glass fiber (GF) affords mechanical robustness. A...
Abstract Comparing with nanometer‐sized Si (nano‐Si), the micrometer‐sized (micro‐Si) is more promising for practical applications due to its low cost and scalable production method. Fabrication of micro‐Si porous architecture can efficiently alleviate high mechanical stress severe fracture. Till now, it still a challenge achieve controlled morphology, such as microsphere, from cost‐efficient environmentally friendly approach. Herein, facile approach on fabricating microsphere via...
Among the Li-rich cathode materials investigated, <italic>x</italic> = 0.167 sample exhibits highest electrochemical performances.