检索结果-南通市图书馆

Mechanical reliable,NIR light-induced rapid self-healing hydrogel electrolyte towards flexible zinc-ion hybrid supercapacitors with low-temperature adaptability and long service life

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Journal of Energy Chemistry 2024年第5期92卷 63-73页

作者： Tengjia Gao Na Li Yang Yang Jing Li Peng Ji Yunlong Zhou Jianxiong Xu School of Materials and Advanced Manufacturing Hunan Key Laboratory of Electrochemical Green Metallurgy TechnologyHunan University of TechnologyZhuzhou 412007HunanChina School of Life Sciences and Chemistry Hunan Key Laboratory of Biomedical Nanomaterials and DevicesHunan University of TechnologyZhuzhou 412007HunanChina

hydrogel electrolytes hold great potential in flexible zinc ion supercapacitors(ZICs)due to their high conductivity,good safety,and flexibility.However,freezing of electrolytes at low temperature(subzero)leads to drastic reduction in ionic conductivity and mechanical properties that deteriorates the performance of flexible ZICs.Besides,the mechanical fracture during arbitrary deformations significantly prunes out the lifespan of the flexible device.Herein,a Zn^(2+)and Li^(+)co-doped,polypyrrole-dopamine decorated Sb_(2)S_(3)incorporated,and polyvinyl alcohol/poly(N-(2-hydroxyethyl)acrylamide)double-network hydrogel electrolyte is constructed with favorable mechanical reliability,anti-freezing,and self-healing ability.In addition,it delivers ultra-high ionic conductivity of 8.6 and 3.7 S m^(-1)at 20 and−30°C,respectively,and displays excellent mechanical properties to withstand tensile stress of 1.85 MPa with tensile elongation of 760%,together with fracture energy of 5.14 MJ m^(-3).Notably,the fractured hydrogel electrolyte can recover itself after only 90 s of infrared illumination,while regaining 83%of its tensile strain and almost 100%of its ionic conductivity during−30–60°C.Moreover,ZICs coupled with this hydrogel electrolyte not only show a wide voltage window(up to 2 V),but also provide high energy density of 230 Wh kg^(-1)at power density of 500 W kg^(-1)with a capacity retention of 86.7%after 20,000 cycles under 20°C.Furthermore,the ZICs are able to retain excellent capacity even under various mechanical deformation at−30°C.This contribution will open up new insights into design of advanced wearable flexible electronics with environmental adaptability and long-life span.

关键词： Flexible zinc ion supercapacitor hydrogel electrolyte Self-healing Anti-freezing

An intrinsically self-healing and anti-freezing molecular chains induced polyacrylamide-based hydrogel electrolytes for zinc manganese dioxide batteries

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Journal of Energy Chemistry 2024年第2期89卷 565-578,I0013页

作者： Haiyang Liao Wenzhao Zhong Chen Li Jieling Han Xiao Sun Xinhui Xia Ting Li Abolhassan Noori Mir F.Mousavi Xin Liu Yongqi Zhang Institute of Fundamental and Frontier Sciences University of Electronic Science and Technology of ChinaChengdu 611731SichuanChina School of Mechanical Engineering Hunan University of TechnologyZhuzhou 412007HunanChina School of Materials Science and Engineering Zhejiang University of TechnologyHangzhou 310014ZhejiangChina Department of Chemistry Faculty of Basic SciencesTarbiat Modares UniversityTehran 14117-13116Iran State Key Laboratory of New Textile Materials and Advanced Processing Technologies Wuhan Textile UniversityWuhan 430200HubeiChina

The anti-freezing strategy of hydrogels and their self-healing structure are often contradictory,it is vital to break through the molecular structure to design and construct hydrogels with intrinsic anti-freezing/self-healing for meeting the rapid development of flexible and wearable devices in diverse service conditions.Herein,we design a new hydrogel electrolyte(AF/SH-hydrogel)with intrinsic anti-freezing/self-healing capabilities by introducing ethylene glycol molecules,dynamic chemical bonding(disulfide bond),and supramolecular interaction(multi-hydrogen bond)into the polyacrylamide molecular chain.Thanks to the exceptional freeze resistance(84%capacity retention at-20℃)and intrinsic self-healing capabilities(95%capacity retention after 5 cutting/self-healing cycles),the obtained AF/SH-hydrogel makes the zinc||manganese dioxide cell an economically feasible battery for the state-of-the-art applications.The Zn||AF/SH-hydrogel||MnO_(2)device offers a near-theoretical specific capacity of 285 m A h g^(-1)at 0.1 A g^(-1)(Coulombic efficiency≈100%),as well as good self-healing capability and mechanical flexibility in an ice bath.This work provides insight that can be utilized to develop multifunctional hydrogel electrolytes for application in next generation of self-healable and freeze-resistance smart aqueous energy storage devices.

关键词： Flexible aqueous battery hydrogel electrolyte Anti-freezing Self-healing Dual-dynamic reversible bond

Stretchable supercapacitor based on a hierarchical PPy/CNT electrode and hybrid hydrogel electrolyte with a wide operating temperature

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Carbon Energy 2022年第4期4卷 527-538页

作者： Yanfang Ren Yunlong Liu Siying Wang Qian Wang Shuhong Li Wenjun Wang Xiaochen Dong Shandong Provincial Key Laboratory of Optical Communication Science and Technology School of Physical Science and Information TechnologyLiaocheng UniversityLiaochengShandongChina Key Laboratory of Flexible Electronics(KLOFE) School of Physical and Mathematical SciencesInstitute of Advanced Materials(IAM)Nanjing Tech University(NanjingTech)NanjingJiangsuChina

hydrogel is frequently used as a solid electrolyte for all solid-state supercapacitors(SCs)because of its liquid-like ion-transport property and high conformability.However,due to the higher water content,the hydrogel electrolyte undergoes inevitable freezing and/or dehydration with climate change.Herein,polypyrrole/carbon all-solid-state SCs(PCSCs)were developed based on a hierarchical polypyrrole/carbon nanotube electrode and a highly stretchable double-network polymer hydrogel electrolyte with LiCl/ethylene glycol as a mixed solvent.The PCSCs showed excellent electrochemical performance and cycle stability with a wide operating temperature.The specific capacitances could reach 202.2 and 112.3 mF cm^(−2) at current densities of 0.5 and 3.0 mA cm^(−2),respectively.Meanwhile,the PCSCs showed outstanding mechanical properties in maintaining a high areal capacitance under deformations of bending and tension.The excellent water retention of the device also ensured the stable electrochemical performance of PCSCs in a wide temperature range(30–80℃),which could potentially represent a reliable application in various harsh environments.

关键词： antidrying property flexibility hydrogel electrolyte supercapacitor

Recent progress of flexible aqueous multivalent ion batteries

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Carbon Energy 2022年第3期4卷 411-445页

作者： Zhenya Wang Yanmei Li Jiawei Wang Runa Ji Hao Yuan Yingyu Wang Hua Wang School of Chemistry Beijing Advanced Innovation Center for Biomedical EngineeringBeihang UniversityBeijingChina School of Materials Science and Engineering University of Science and Technology BeijingBeijingChina School of Chemistry Engineering Northeast Electric Power UniversityJilinChina

Flexible aqueous batteries have been thriving with the growing demand for wearable and portable electrical devices.In particular,flexible aqueous mul tivalent ion batteries(FAMIBs),the charge carriers of which include Zn^(2+),Al^(3+),Mg^(2+),and Ca^(2+),have great potential for development owing to their high safety,high elemental abundance in the Earth's crust,and a multi-electron redox mechanism with a high theoretical specific capacity.Therefore,for a comprehensive understanding of this developing field,it is necessary to summarize the recent research progress of FAMIBs in a timely manner.Herein,the advancements of the state-of-the-art FAMIBs are reviewed,and the prospects toward this field are also proposed.This study focuses on the rational material and configuration design for FAMIBs in recent studies to achieve high battery performances under deformation conditions,which is elaborated on by classification of the anode,cathode,hydrogel electrolyte,and configurations of FAMIBs.Besides,the electrochemical performance of FAMIBs under flexible conditions is also reviewed from the perspective of their working voltage,specific capacity,and cycling stability.Finally,the ap proaches to improve the performance of FAMIBs are comprehensively eval uated,followed by the outlook on the challenges and opportunities in future development of FAMIBs.

关键词： aqueous battery flexible battery hydrogel electrolyte multivalent ion zinc ion battery

Dynamic stretching–electroplating metal-coated textile for a flexible and stretchable zinc–air battery

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Carbon Energy 2022年第5期4卷 867-877页

作者： Shengxiang Qu Jie Liu Xiaopeng Han Yida Deng Cheng Zhong Wenbin Hu Key Laboratory of Advanced Ceramics and Machining Technology(Ministry of Education) School of Materials Science and EngineeringTianjin UniversityTianjinChina Tianjin Key Laboratory of Composite and Functional Materials School of Materials Science and EngineeringTianjin UniversityTianjinChina Joint School of National University of Singapore and Tianjin University International Campus of Tianjin UniversityFuzhouFujianChina

A metal electrode is a significant component of a zinc–air battery(ZAB),but the metal material is usually not elastic,which severely restricts the application of flexible and stretchable ZABs in the field of wearable electronic devices.Herein,we report a flexible and stretchable metal-coated textile prepared by a dynamic stretching–electroplating based on a wavy spandex textile substrate.Benefiting from the unique woven and wavy structure,the metal-coated textile shows a high stretchability of 100%and stable conductivity.In situ scanning electron microscope observation during stretching showed that the tensile strain of the metal-coated textile is mainly attributed to the deformation of the microfiber network at the bottom position of the wave structure.In addition,a sodium carboxymethyl cellulose–polyacrylic acid–potassium hydroxide composite hydrogel has been used as the electrolyte.This hydrogel shows excellent ionic conductivity,mechanical properties,and water retention properties,which makes it suitable for the semi-open system of ZAB.Furthermore,a flexible and stretchable sandwich-structure ZAB,assembled using the above-mentioned electrodes and electrolyte,operates stably even under rapid stretching/releasing cycle deformation.Because of its facile preparation and low cost,this flexible and stretchable ZAB is suitable for fabrication of large-area batteries to obtain higher output current and power to drive wearable electronic devices.

关键词： dynamic stretching–electroplating hydrogel electrolyte metal-coated textile prestrain–load–recovery zinc–air battery

Rechargeable quasi-solid-state aqueous hybrid Al^(3+)/H^(+) battery with 10,000 ultralong cycle stability and smart switching capability

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Nano Research 2021年第11期14卷 4154-4162页

作者： Hua Wang Panpan Wang Zhenyuan Ji Zhe Chen Jiaqi Wang Wei Ling Jie Liu Mengmeng Hu Chunyi Zhi Yan Huang State Key Laboratory of Advanced Welding and Joining Harbin Institute of TechnologyShenzhen518055China Flexible Printed Electronic Technology Center Harbin Institute of TechnologyShenzhen518055China School of Materials Science and Engineering City University of Hong KongHong Kong999077China School of Materials Science and Engineering Harbin Institute of TechnologyShenzhen518055China

Safe and long lifespan batteries facilitate the development of portable electronics and electric vehicles.Owing to the low-cost,naturally abundance,and trivalent charge carrier of aluminum with the highest theoretical volumetric capacity,rechargeable aqueous aluminum-ion-based batteries are considered as promising next-generation secondary batteries.However,traditional electrolytes and frequent collapse of the host structure of electrode materials greatly jeopardize the cycle stability of the batteries.Here,we develop a novel hydrogel-based electrolyte coupled with stable layered intercalation electrodes for the first time to fabricate a highly safe and flexible rechargeable hybrid Al^(3^(+))/H^(+)battery.The as-fabricated hybrid-ion battery(HIB)delivers a high specific capacity of 125 mAh·g^(−1) at 0.1 A·g^(−1) and exhibits an unprecedented super long-term cycling stability with no capacity fading over 10,000 cycles at 2 A·g^(−1).In addition,the hydrogel-based electrolyte possesses smart function of thermoresponsive switching,which can effectively prevent thermal runaway for the batteries.The unprecedented long cycle stability,highly intrinsic safety as well as low-cost indicate that the flexible aqueous HIBs are promising for applications.

关键词： hybrid-ion batteries hydrogel electrolyte long lifespan safety thermoresponsive