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Reversible phase transition poly(benzyl methacrylate)/ionic liquid electrolytes for effective overheating protection in lithium batteries

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Journal of Energy Chemistry 2025年第2期101卷 76-86页

作者： Qian Yu Wei Sun Jialing Zhu Haoxiang Li Shuai Wang Longqing Huang Qian Qiu Haoran Tian He Miao Fu Wang Chunfei Zhang Jinliang Yuan Lan Xia Ningbo Innovation team on New Energies and Marine Applications Faculty of Maritime and Transportation Ningbo University Technical University of Munich TUM School of Natural Sciences Department of Physics Chair for Functional Materials

Battery safety is influenced by various factors,with thermal runaway being one of the most significant *** most studies have concentrated on developing one-time,self-activating mechanism for thermal protection,such as temperature-responsive electrodes,and thermal-shutdown separators,these methods only provide irreversible ***,reversible temperature-sensitive electrolytes have emerged as promising alternatives,offering both thermo-reversibility and self-protective ***,further research is crucial to fully understand these thermal-shutdown *** this study,we propose lower critical solution temperature(LCST) phase behavior poly(benzyl methacrylate)/imidazolium-based ionic liquid mixtures to prepare temperature-sensitive electrolytes that provide reversible thermal shutdown protection of *** electrolyte features an appropriate protection temperature(～105℃) and responds quickly within a 1 min at 105℃,causing cells to hardly discharge as the voltage suddenly drops to 3.38 V,and providing efficient thermal shutdown protection within 30 *** cooling back to room temperature,the battery regains its original ***,the electrolyte exhibits excellent cycling stability with the capacity retention of the battery is 91.6% after 500 *** work provides a viable solution for preventing batteries from thermal runaway triggered by overheating.

关键词： Ionic liquid Lithium-ion battery Lower critical solution temperature Overheating Safety Thermal runaway

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A low-cost wide bandgap polymer based on carboxylate substituted thiazole enables efficient organic solar cells with remarkable batch-to-batch reproducibility

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Science China Chemistry 2025年第2期68卷 733-744页

作者： Xiaodong Zhu Yuchen Lei Jianhong Gao Yanjun He Jinsicheng Liu Qian Guo Xiang Gao Liwei Xiong Xunchang Wang Renqiang Yang Zhitian Liu Hubei Engineering Technology research Center of Optoelectronic and New Energy materials Hubei Key Laboratory of Plasma Chemistry and Advanced MaterialsSchool of Materials Science and EngineeringWuhan Institute of TechnologyWuhan 430205China Key Laboratory of Optoelectronic Chemical materials and Devices(Ministry of Education) School of Optoelectronic Materials&TechnologyJianghan UniversityWuhan 430056China

Constructing the low-cost,high-efficiency,and good batch-to-batch reproducibility polymer donor is vitally important for the application of organic solar ***,we develop a structurally simple carboxylate-substituted thiazole as an electronwithdrawing building block to construct a low-cost polymer,PBTTzE,containing a facilely prepared chlorinated benzo[1,2-b:4,5-b′]dithiophene(BDTCl)donor *** from synergistic electron deficient effects of chlorination and ester group and C=N,as well as the noncovalent interaction of S…O and S…N,PBTTzE exhibits a deep HOMO energy level(−5.59 eV),and a planar skeleton *** combined with the IT-4F acceptor,the polymer(54 kDa)demonstrated a champion PCE of 15.87%,which is the highest value in the IT-4F-based binary devices to ***,PBTTzE exhibits excellent batch-tobatch reproducibility due to its very similar PCEs within a range of 43–76 *** addition,an alloyed state and complementary absorption can be formed between PM6 and ***,in a ternary device with PBTTzE added to the PM6:BTP-eC9 blend,a top PCE of 18.76%is achieved due to the suppressed energy loss,prolonged exciton diffusion distance,and improved charge *** work demonstrates that the carboxylate-substituted thiazole is a highly promising acceptor unit for constructing low-cost and high-performance polymers.

关键词： carboxylate substituted thiazole polymer donor low-cost batch-to-batch reproducibility organic solar cells

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VP-VO core-shell heterostructure:Harmonizing adsorption and catalysis of polysulfdes for high-performance Li-S batteries

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Journal of Energy Chemistry 2025年第2期101卷 837-843页

作者： Tao Ren Xinji Dong Xiaolan Li Haojie Zhu Cheng Yang Jinliang Zhu School of Resources Environment and Materials State Key Laboratory of Featured Metal Materials and Life-cycle Safety for Composite Structures Guangxi University Institute of materials research Tsinghua Shenzhen International Graduate School Tsinghua University

*** Lithium-sulfur(Li-S) batteries are broadly considered as an outstanding candidate for the future sustainable energy storage pathway due to their high theoretical capacity,high energy density,and low cost [1,2].However,their practical deployment has been hindered by the sluggish 16-electron conversion process and shuttle of lithium polysulfides(LiPSs),which result in the loss of active sulfu r species [3,4].

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Biomimetic proton pocket and effective interfacial modulation for zinc metal anodes

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Science China Chemistry 2025年第2期68卷 526-535页

作者： Qi Dong Qingshun Nian Xuan Luo Jiajia Fan Jinyu Jiang Zhuangzhuang Cui Digen Ruan Xiaodi Ren Hefei National research Center for Physical Sciences at the Microscale CAS Key Laboratory of Materials for Energy ConversionDepartment of Materials Science and EngineeringUniversity of Science and Technology of ChinaHefei 230026China

Rechargeable aqueous zinc batteries(RAZBs)offer a promising solution for large-scale energy storage due to the abundance,low cost,and safety of ***,practical applications are hindered by Zn anode instability,dendrite growth,and hydrogen evolution reactions(HER).Chaotropic Zn(ClO_(4))2 electrolytes are favorable for low-temperature operations but exacerbate these issues due to their high acidity,leading to severe Zn corrosion and layered double hydroxide *** propose a biomimetic strategy using methylguanidoacetic acid(creatine)as a low-cost,eco-friendly additive to address these *** acts as a proton pocket to finely tune the pH of acidic Zn(ClO_(4))2 electrolytes for suppressing HER and stabilizing the Zn ***,the formed creatinine cations adsorb on the Zn surface,promoting highly controlled Zn deposition with a preferred(002)*** approach significantly enhances battery cycling performance,with Zn||Zn cells demonstrating extended cycling stability at both low and high current ***||Cu cells exhibited improved Coulombic efficiency over thousands of cycles,indicating highly reversible Zn plating/***,stable cell operations were realized at the temperature as low as−35℃ without electrolyte *** findings highlight the potential of biomimetic proton regulation and interfacial modulation for improving the stability and reversibility of Zn plating/stripping in RAZBs.

关键词： zinc metal anode dendrite suppression interfacial modulation proton-triggered cyclization Zn(ClO_(4))2 electrolyte

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research progress of lignin-derived materials in lithium/sodium ion batteries

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Green Energy & Environment 2025年第2期10卷 322-344页

作者： Jingke Zhang Hengxue Xiang Zhiwei Cao Shichao Wang Meifang Zhu Institute of Hybrid materials National Center of International Research for Hybrid Materials TechnologyNational Base of International Science&Technology CooperationCollege of Materials Science and EngineeringQingdao UniversityQingdao266071China State Key Laboratory for Modification of Chemical Fibers and Polymer materials College of Materials Science and EngineeringDonghua UniversityShanghai201620China

With the increase of energy consumption,the shortage of fossil resource,and the aggravation of environmental pollution,the development of cost-effective and environmental friendly bio-based energy storage devices has become an urgent *** the second most abundant natural polymer found in nature,lignin is mainly produced as the by-product of paper pulping and bio-refining *** possesses several inherent advantages,such as low-cost,high carbon content,abundant functional groups,and bio-renewable,making it an attractive candidate for the rechargeable battery ***,there has been a surge of research interest in utilizing lignin or lignin-based carbon materials as the components of lithium-ion(LIBs)or sodium-ion batteries(SIBs),including the electrode,binder,separator,and *** review provides a comprehensive overview on the research progress of lignin-derived materials used in LIBs/SIBs,especially the application of lignin-based carbons as the anodes of LIBs/*** preparation methods and properties of lignin-derived materials with different dimensions are systemically discussed,which emphasizes on the relationship between the chemical/physical structures of lignin-derived materials and the performances of LIBs/*** current challenges and future prospects of lignin-derived materials in energy storage devices are also proposed.

关键词： Lignin-based carbons Lithium battery Sodium battery Chemical structure evolution

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Improving performance of perovskite solar cells enabled by defects passivation and carrier transport dynamics regulation via organic additive

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Chinese Chemical Letters 2025年第2期36卷 551-556页

作者： Rongjun Zhao Tai Wu Yong Hua Yude Wang Department of Physics Center for Optoelectronics Engineering ResearchYunnan University Yunnan Key Laboratory for Micro/Nano materials&Technology International Joint Research Center for Optoelectronic and Energy MaterialsSchool of Materials and EnergyYunnan University Yunnan Key Laboratory of Carbon Neutrality and Green Low-carbon Technologies Yunnan University

Defects at the grain boundaries(GBs) of perovskite film highly restrict both the efficiency and stability of perovskite solar cells(PSCs). Herein, organic small molecules of butanedioic acid(BA) and acetylenedicarboxylic acid(AA), containing two carbonyl(C=O) groups and different core-units, were incorporated into perovskite as additives for PSCs application. Thanks to the strong coordination interaction between C=O group and under-coordinated Pb2+, the additives can effectively passivate film defects and regulate the perovskite crystallization, yielding high-quality perovskite films with lower defect densities. More importantly, the additives can efficiently regulate the charge transport behaviors in PSCs. Benefiting from the defects passivation and the regulation of charge carrier dynamics, the BA and AA-treaded PSCs show the power conversion efficiencies of 21.52% and 20.50%, which are higher than that of the control device(19.41%). Besides, the optimal devices exhibit a remarkable enhanced long-term stability and moisture tolerance compared to the pristine devices. Furthermore, the transient absorption spectrum reveals the mechanism of enhanced photovoltaic performances, attributing to the improvement of charge transport capability at the perovskite/Spiro-OMeTAD interfaces. This work affords a promising strategy to improve the efficiency and stability of PSCs through regulating the charge-carrier dynamic process in perovskite film.

关键词： Additives Carrier dynamics Defects passivation Perovskite solar cells Stability

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Na_(2)B_(6)SO_(13) with unprecedented [B_(6)SO_(13)]_(∞) double chains and largest birefringence among borosulfates induced by the uniform arrangement of [B_(3)O_(7)] units

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Science China Chemistry 2025年第2期68卷 475-480页

作者： Jinbin Fan Ziting Yan Zilong Chen Huimin Li Zhihua Yang Fangfang Zhang Shilie Pan research Center for Crystal materials State Key Laboratory of Functional Materials and Devices for Special Environmental ConditionsXinjiang Key Laboratory of Functional Crystal MaterialsXinjiang Technical Institute of Physics and ChemistryChinese Academy of SciencesUrumqi 830011China Center of materials Science and Optoelectronics Engineering University of Chinese Academy of SciencesBeijing 100049China

Birefringence is crucial for birefringent crystals to modulate polarized light and nonlinear optical crystals to enable *** is closely related to the arrangement of advantageous functional groups with large microcosmic polarizability anisotropy in the ***,designing crystals with large birefringence by modulating the arrangement of advantageous functional groups is still a *** this work,the arrangement of the advantageous[B_(3)O_(7)]groups is optimized by introducing rigid tetrahedral[SO_(4)]groups,resulting in a novel boron-rich borosulfate,Na_(2)B_(6)SO_(13) ,which exhibits unprecedented[B_(6)SO_(13)]_(∞)double chain and an enhanced birefringence(Δn=0.07 at 589.3 nm)against the borate parent *** calculations confirm that the birefringence is mainly attributable to the uniform alignment of[B_(3)O_(7)]***_(2)B_(6)SO_(13) also possesses a deep ultraviolet(DUV)cutoff edge(λ<185 nm).This work provides a feasible method to design DUV birefringent crystals with large birefringence by inducing the arrangement of advantageous functional groups.

关键词： borosulfate deep ultraviolet birefringence modulated groups

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Constructing Pr-doped CoOOH catalytic sites for efficient electrooxidation of 5-hydroxymethylfurfural

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Journal of Energy Chemistry 2025年第1期100卷 234-244页

作者： Botao Fan Hao Zhang Bang Gu Feng Qiu Qiue Cao Wenhao Fang School of Chemical Science and Technology Yunnan UniversityKunming 650091YunnanChina National Center for International research on Photoelectric and Energy materials School of Materials and EnergyYunnan UniversityKunming 650091YunnanChina

Electrocatalytic conversion of renewable biomass is emerging as a promising route for sustainable chemical production;hence it urgently calls for developing efficient electrocatalysts with low potentials and high current ***,a Pr-doped Co(OH)_(2)hexagonal sheet(Pr/Co=1/9,in mole)is synthesized by electrodeposition as highly performant catalyst for 5-hydroxymethylfurfural(HMF)oxidation reaction(HMFOR)to produce 2,5-furandicarboxylic acid(FDCA).This novel and low-cost catalyst possesses a rather low onset potential of 1.05 V(***)and requires only 1.10 V(***)to reach a current density of 10 mA cm^(-2)for HMFOR,significantly outperforming Co(OH)_(2)benchmark(i.e.,210 mV higher to reach10 m A cm^(-2)).The origin of Pr promotion effect as well as the evolution of CoOOH catalytic sites and HMFOR process has been deeply elucidated by physical characterizations,kinetic experiments,in situ electrochemical techniques,and theoretical *** unique Pr-ameliorated CoOOH active centers enable 100%conversion of HMF,99.6%selectivity of FDCA,and 99.7%Faraday efficiency,with a superior cycling durability toward *** can be one of the most outstanding results for Co-based HMFOR catalysts to date in the *** this work can help open up new horizons for constructing novel and efficient Co-based electrocatalysts by the utilization of lanthanide elements.

关键词： Biomass conversion Electrocatalysis 2,5-Furandicarboxylic acid Doped Co catalyst Co3+active sites Charge transfer rate

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Electronic interactions between neighboring functionalized guest Sb single atoms and Pt clusters enhance CO tolerance

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Journal of Energy Chemistry 2025年第2期101卷 733-743页

作者： Wenkang Miao Ronghui Hao Lu Gan Wanyin Xu Zihan Wang Wenxin Lin Heguang Liu Yinchun Lyu Qianqian Li Jinyang Xi Anmin Nie Jinsong Wu Hongtao Wang materials Genome Institute Shanghai University School of materials Science and Engineering Zhejiang Sci-Tech University School of materials Science and Engineering Xi'an University of Technology Center for High Pressure Science State Key Laboratory of Metastable Materials Science and Technology Yanshan University Nanostructure research Center Wuhan University of Technology Center for X-mechanics Zhejiang University

Platinum-based（Pt） catalysts are notoriously susceptible to deactivation in industrial chemical processes due to carbon monoxide（CO） *** this poisoning deactivation of Pt-based catalysts while enhancing their catalytic activity,selectivity,and durability remains a major ***,we propose a strategy to enhance the CO tolerance of Pt clusters（Pt_n） by introducing neighboring functionalized guest single atoms（such as Fe,Co,Ni,Cu,Sb,and Bi）.Among them,antimony（Sb） single atoms（SAs） exhibit significant performance enhancement,achieving 99% CO selectivity and 33.6% CO2conversion at 450℃,Experimental results and density functional theory（DFT） calculations indicate the optimization arises from the electronic interaction between neighboring functionalized Sb SAs and Pt clusters,leading to optimal 5d electron redistribution in Pt clusters compared to other functionalized guest single *** redistribution of 5d electrons weaken both the σ donation and π backdonation interactions,resulting in a weakened bond strength with CO and enhancing catalyst activity and *** situ environmental transmission electron microscopy（ETEM） further demonstrates the exception thermal stability of the catalyst,even under H2at 700℃.Notably,the functionalized Sb SAs also improve CO tolerance in various heterogenous catalysts,including Co/CeO2,Ni/CeO2,Pt/Al2O3,and Pt/*** finding provides an effective approach to overcome the primary challenge of CO poisoning in Pt-based catalysts,making their broader applications in various industrial catalysts.

关键词： CO tolerance Electronic effect Functionalized guest single atoms In-situ TEM Pt cluster

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Revealing the Role of Hydrogen in Highly Efficient Ag-Substituted CZTSSe Photovoltaic Devices:Photoelectric Properties Modulation and Defect Passivation

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Nano-Micro Letters 2025年第4期17卷 166-180页

作者： Xiaoyue Zhao Jingru Li Chenyang Hu Yafang Qi Zhengji Zhou Dongxing Kou Wenhui Zhou Shengjie Yuan Sixin Wu The Key Laboratory for Special Functional materials of MOE School of Nanoscience and Materials EngineeringNational and Local Joint Engineering Research Center for High-Efficiency Display and Lighting TechnologyCollaborative Innovation Center of Nano Functional Materials and ApplicationsHenan UniversityKaifeng 475004People’s Republic of China

The presence of SnZn-related defects in Cu_(2)ZnSn(S,Se)_(4)(CZTSSe)absorber results in large irreversible energy loss and extra irreversible electron-hole non-radiative recombination,thus hindering the efficiency enhancement of CZTSSe *** the incorporation of Ag in CZTSSe can effectively suppress the SnZn-related defects and significantly improve the resulting cell performance,an excellent efficiency has not been achieved to date primarily owing to the poor electrical-conductivity and the low carrier density of the CZTSSe film induced by Ag ***,this study exquisitely devises an Ag/H co-doping strategy in CZTSSe absorber via Ag substitution programs followed by hydrogen-plasma treatment procedure to suppress SnZn defects for achieving efficient CZTSSe ***-depth investigation results demonstrate that the incorporation of H in Ag-based CZTSSe absorber is expected to improve the poor electrical-conductivity and the low carrier density caused by Ag ***,the C=O and O-H functional groups induced by hydrogen incorporation,serving as an electron donor,can interact with under-coordinated cations in CZTSSe material,effectively passivating the SnZn-related ***,the incorporation of an appropriate amount of Ag/H in CZTSSe mitigates carrier non-radiative recombination,prolongs minority carrier lifetime,and thus yields a champion efficiency of 14.74%,showing its promising application in kesterite-based CZTSSe devices.

关键词： CZTSSe Ag/H co-doping Photoelectric properties modulation Defect passivation Non-radiative recombination

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