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Molecule‑Level Multiscale Design of Nonflammable Gel Polymer Electrolyte to Build Stable SEI/CEI for Lithium Metal Battery

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Nano-Micro Letters 2025年第1期17卷 404-423页

作者： Qiqi Sun Zelong Gong Tao Zhang Jiafeng Li Xianli Zhu Ruixiao Zhu Lingxu Wang Leyuan Ma Xuehui Li Miaofa Yuan Zhiwei Zhang Luyuan Zhang Zhao Qian Longwei Yin Rajeev Ahuja Chengxiang Wang Key laboratory for Liquid‑Solid Structural Evolution and Processing of Materials(Ministry of Education) School of Materials Science and EngineeringShandong UniversityJinan 250061People’s Republic of China condensed matter Theory Department of Physics and AstronomyUppsala UniversityUppsala 75120Sweden

The risk of flammability is an unavoidable issue for gel polymer electrolytes(GPEs).Usually,flameretardant solvents are necessary to be used,but most of them would react with anode/cathode easily and cause serious interfacial instability,which is a big challenge for design and application of nonflammable ***,a nonflammable GPE(SGPE)is developed by in situ polymerizing trifluoroethyl methacrylate(TFMA)monomers with flame-retardant triethyl phosphate(TEP)solvents and LiTFSI–LiDFOB dual lithium *** is strongly anchored to PTFMA matrix via polarity interaction between-P=O and-CH_(2)CF_(3).It reduces free TEP molecules,which obviously mitigates interfacial reactions,and enhances flame-retardant performance of TEP *** TEP molecules are also inhibited in solvation of Li^(+),leading to anion-dominated solvation sheath,which creates inorganic-rich solid electrolyte interface/cathode electrolyte interface *** coordination structure changes Li^(+)transport from sluggish vehicular to fast structural transport,raising ionic conductivity to 1.03 mS cm^(-1) and transfer number to 0.41 at 30℃.The Li|SGPE|Li cell presents highly reversible Li stripping/plating performance for over 1000 h at 0.1 mA cm^(−2),and 4.2 V LiCoO_(2)|SGPE|Li battery delivers high average specific capacity>120 mAh g^(−1) over 200 *** study paves a new way to make nonflammable GPE that is compatible with Li metal anode.

关键词： Anchoring effect Nonflammable gel electrolyte In situ cross-linked Electrode-electrolyte interface Li metal battery

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Ultrafast condensed matter Physics at Attoseconds

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Chinese Physics Letters 2023年第11期40卷 139-148页

作者：胡史奇孟胜 Beijing National laboratory for condensed matter Physics and Institute of Physics Chinese Academy of SciencesBeijing 100190China School of Physical Sciences University of Chinese Academy of SciencesBeijing 100049China Songshan Lake Materials laboratory Dongguan 523808China

Our understanding of how photons couple to different degrees of freedom in solids forms the bedrock of ultrafast physics and materials *** this review,the emergent ultrafast dynamics in condensed matter at the attosecond timescale have been intensively *** particular,the focus is put on recent developments of attosecond dynamics of charge,exciton,and *** concepts and indispensable role of interactions among multiple degrees of freedom in solids are *** of attosecond electronic metrology and future prospects toward attosecond dynamics in condensed matter are further *** pioneering studies promise future development of advanced attosecond science and technology such as attosecond lasers,laser medical engineering,and ultrafast electronic devices.

关键词： solids condensed dynamics

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Electric Field-Induced Fluid Velocity Field Distribution in DNA Solution

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Chinese Physics Letters 2008年第10期25卷 3818-3821页

作者：张凌云王鹏业 laboratory of Soft matter Physics Beijing National Laboratory for Condensed Matter Physics Institute of Physics Beijing 100190

We present an analytical solution for fluid velocity field distribution of polyelectrolyte DNA. Both the electric field force and the viscous force in the DNA solution are considered under a suitable boundary condition. The solution of electric potential is analytically obtained by using the linearized Poisson-Boltzmann equation. The fluid velocity along the electric field is dependent on the cylindrical radius and concentration. It is shown that the electric field-induced fluid velocity will be increased with the increasing cylindrical radius, whose distribution also varies with the concentration

关键词： the power-law exponents precipitation durative abrupt precipitation change

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Growth of Pb S nanoclusters on specific sites of programmed oligodeoxynucleotides

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Chinese Physics B 2015年第1期24卷 398-403页

作者：陆颖滕翠娟李颖王惠徐春华胡书新李明 Beijing National laboratory for condensed matter Physics and Key laboratory of Soft matter Physics Institute of PhysicsChinese Academy of Sciences

We develope a method to synthesize Pb S nanoclusters（NCs） using guanine-containing oligodeoxynucleotides（ODNs）as templates. The NCs on the ODNs are ultra small（ranging from ～ 0.5 nm to 2.1 nm） and luminescent in the visible region. They are characterized by photoluminescence（PL） spectra, transmission electron microscopy（TEM）, and X-ray powder diffraction（XRD）. The ODN–NC complexes can be used as customer-designed fluorophores which do not have the problem of multiple conjugations. The same method enables us to fabricate Pb S quantum dot molecules and connect them into nanowires, expanding their potential applications in molecule electronics and quantum computing.

关键词： Pb S nanoclusters quantum dot molecules oligodeoxynucleotides photoluminescence

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An intermediate state of T7 RNA polymerase provides another pathway of nucleotide selection

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Chinese Physics B 2017年第10期26卷 12-27页

作者：王展峰刘玉如王鹏业谢平 Key laboratory of Soft matter Physics Beijing National Laboratory for Condensed Matter Physics Institute of PhysicsChinese Academy of Science

Phage T7 RNA polymerase is a single-subunit transcription enzyme, transcribing template DNA to RNA. Nucleoside triphosphate （NTP） selection and translocation are two critical steps of the transcription elongation. Here, using all-atom molecular dynamics simulations, we found that between pre- and post-translocation states of T7 RNA polymerase an intermediate state exists, where the O helix C-terminal residue tyrosine 639, which plays important roles in translocation, locates between its pre- and post-translocation positions and the side chain of the next template DNA nucleotide has moved into the active site. NTP selection in this intermediate state was studied, revealing that the selection in the intermediate state can be achieved relying on the effect of Watson-Crick interaction between NTP and template DNA nucleotide, effect of stability of the components near the active site such as the nascent DNA-RNA hybrid and role of tyrosine 639. This indicates that another NTP-selection pathway can also exist besides the main pathway where NTP selection begins at the post-translocation state upon the entry of NTE

关键词： RNA polymerase transcription elongation fidelity control molecular dynamics simulation

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Effective temperature and fluctuation-dissipation theorem in athermal granular systems:A review

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Chinese Physics B 2014年第7期23卷 73-78页

作者：陈琼厚美瑛 Key laboratory of Soft matter Physics Beijing National Laboratory for Condensed Matter Physics Institute of PhysicsChinese Academy of Sciences

The definition and the previous measurements of a dynamics-relevant temperature-like quantity in granular media are reviewed for slow and fast particle systems. Especially, the validity of the fluctuation-dissipation theorem in such an athermal system is explored. Experimental evidences for the fluctuation-dissipation theorem relevant effect temperature support the athermal statistical mechanics, which has been widely explored in recent years by physicists. Difficulties encountered in defining temperature or establishing thermodynamics or statistical mechanics in non-equilibrium situations are discussed.

关键词： granular systems fluctuation-dissipation relation non-equilibrium thermodynamics

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Brownian dynamics simulation of the cross-talking effect among modified histones on conformations of nucleosomes

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Chinese Physics B 2010年第4期19卷 461-468页

作者：段兆文李伟谢平窦硕星王鹏业 Key laboratory of Soft matter Physics Beijing National Laboratory for Condensed Matter PhysicsInstitute of PhysicsChinese Academy of Sciences

Using Brownian dynamics simulation, we studied the effect of histone modifications On conformations of an array of nucleosomes in a segment of chromatin. The simulation demonstrated that the segment of chromatin shows the dynamic behaviour that its conformation can switch between a state with nearly all of the histones being wrapped by DNA and a state with nearly all of the histones being unwrapped by DNA, thus involving the ＂cross-talking＂ interactions among the histones. Each state can stay for a sufficiently long time. These conformational states are essential for gene expression or gene silence. The simulation also shows that these conformational states can be inherited by the daughter DNAs during DNA replication, giving a theoretical explanation of the epigenetic phenomenon.

关键词： nucleosome histone modification DNA Brownian dynamics

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Synchronous Measurement of Ultrafast Anisotropy Decay of the B850 in Bacterial LH2 Complex

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Chinese Physics Letters 2015年第2期32卷 48-51页

作者：王云鹏都鲁超朱刚贝王专翁羽翔 laboratory of Soft matter Physics and Beijing National Laboratory for Condensed Matter PhysicsInstitute of PhysicsChinese Academy of Sciences

Ultrafast anisotropic decay is a prominent parameter revealing ultrafast energy and electron transfer; however, it is dimcult to be determined reliably owing to the requirement of a simultaneous availability of the parallel and perpendieular polarized decay kinetics. Nowadays, any measurement of anisotropic decay is a kind of approach to the exact simultaneity. Here we report a novel method for a synchronous ultrafast anisotropy decay measurement, which can well determine the anisotropy, even at a very early time, as the rising phase of the excitation laser pulse. The anisotropic decay of the B850 in bacteriM light harvesting antenna complex LH2 of rhodobacter sphaeroides in solution at room temperature with coherent excitation is detected by this method, which shows a polarization response time of 30 fs, and the energy transfer from the initial excitation to the bacteriochlorophylls in B850 ring takes about 7Ors. The anisotropic decay that is probed at the red side of the absorption spectrum, such as 880 nm, has an initial value of 0.4, corresponding to simulated emission, while the blue side with an anisotropy of 0.1 contributes to the ground-state bleaching. Our results show that the coherent excitation covering the whole ring might not be realized owing to the symmetry breaking of LH2： from C9 symmetry in membrane to C2 symmetry in solution.

关键词： Synchronous Measurement of Ultrafast Anisotropy Decay of the B850 in Bacterial LH2 Complex LH

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Monte Carlo simulation on backward steps of single kinesin molecule

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Chinese Physics B 2008年第4期17卷 1513-1517页

作者：王宏张勇窦硕星王鹏业 laboratory of Soft matter Physics Beijing National Laboratory for Condensed Matter PhysicsInstitute of PhysicsChinese Academy of Science

Kinesin is a stepping molecular motor travelling along the microtubule. It moves primarily in the plus end direction of the microtubule and occasionally in the minus-end, backward, direction. Recently, the backward steps of kinesin under different loads and temperatures start to attract interests, and the relations among them are revealed. This paper aims to theoretically understand these relations observed in experiments. After introducing a backward pathway into the previous model of the ATPase cycle of kinesin movement, the dependence of the backward movement on the load and the temperature is explored through Monte Carlo simulation. Our results agree well with previous experiments.

关键词： kinesin backward steps Monte Carlo ATPase cycle

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2277-W continuous-wave diode-pumped heat capacity laser

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Chinese Optics Letters 2007年第4期5卷 226-228页

作者：杨晓冬薄勇彭钦军崔前进耿爱丛崔大复许祖彦 Beijing National laboratory for condensed matter Physics Institute of Physics Chinese Academy of Sciences Beijing National laboratory for condensed matter Physics Institute of Physic Chinese Academy of Sciences

A high power continuous-wave （CW） diode-pumped Nd：YAG laser operated in heat capacity mode is demonstrated by use of two identical highly efficient diode-pumped laser heads placed in a plane-plane resonator. The laser heads are uniformly pumped with a five-fold symmetrical side-pumping configuration, and each head is able to output maximum output power of 2200 W at 808 nm. Under a total pump power of 4290 W, the output power of the laser at 1064 nm is up to 2277 W, corresponding to an optical-to-optical efficiency of 53.1%.

关键词： Continuous wave lasers Optically pumped lasers Specific heat

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