Results 91 to 100 of about 18,272 (295)

Additives for Cycle Life Improvement of High‐Voltage LNMO‐Based Li‐Ion Cells

, 2019
In this empirical study, five electrolyte additives, namely, lithium bis(oxalato) borate, lithium difluoro(oxalato) borate, 1‐vinyl‐1,2,4‐triazole, 1‐vinyl imidazole and dimethyl‐2,5‐dioxahexane dioate are described and compared regarding their effect in
Binder, Joachim R., Hofmann, A, Binder, JR, Thomas Hanemann, Hofmann, Andreas, Höweling, Andres, Höweling, A, Hanemann, T, Müller, Marcus, Müller, M, Hanemann, Thomas, Andreas Hofmann, Bohn, N, Nicole Bohn, Bohn, Nicole, Joachim R. Binder, Marcus Müller, Andres Höweling   +17 more
core   +1 more source

Modulating physicochemical interfaces enables li-rich oxides based ceramic solid-state li batteries under ambient conditions

Nature Communications
Li-rich layered oxides exhibit promising potential applications in high-energy-density solid-state lithium metal batteries. Nevertheless, the strong oxidative oxygen species generate at high voltage, which poses great challenges to positive electrode ...
Xinchao Hu, Shuqi Shen, Jiantao Li, Jiansen Wen, Mengjian Fan, Sungsik Lee, Yinggan Zhang, Hualong Wu, Guiyang Gao, Yuanyuan Liu, Shiyu Zhang, Chengkun Zhang, Baisheng Sa, Laisen Wang, Dong-Liang Peng, Khalil Amine, Qingshui Xie   +16 more
doaj   +1 more source

Counterion Dependent Side‐Chain Relaxation Stiffens a Chemically Doped Thienothiophene Copolymer

Advanced Functional Materials, EarlyView.
Oxidation of a thienothiophene copolymer, p(g3TT‐T2), via different doping strategies and dopant molecules resulted in materials with similar oxidation levels and a high electrical conductivity of ≈100 S cm−1. However, mechanical properties varied significantly, with sub‐glass transition temperatures and elastic moduli spanning from –44°C to –3°C and ...
Mariavittoria Craighero, Meghna Jha, Elsa Veronica Flores‐Vela, Joost Kimpel, Andreas Schaefer, Jiali Guo, Jesika Asatryan, Alberto Peinador Veiga, Shuichi Haraguchi, Per‐Anders Carlsson, Jaime Martín, Mariano Campoy‐Quiles, Christian Müller   +12 more
wiley   +1 more source

Additives of Suppressing Hydrogen Evolution at Carbon- Containing Negative Plates of Valve-Regulated Lead-Acid Batteries

International Journal of Electrochemical Science, 2016
The effects of several rare earth oxides and fluorine-containing compounds as additives on the hydrogen evolution at the negative plates containing commercial and purified carbon materials in valve-regulated lead-acid (VRLA) batteries have been studied ...
Jingcheng Hu, Chengbin Wu, Xinle Wang, Yonglang Guo   +3 more
doaj   +1 more source

Evaluation of Electrolyte Additives for High‐Temperature Polymer Electrolyte Fuel Cells

ChemElectroChem, 2016
AbstractIn this study, perfluoroalkyl phosphonic acids CF3PO3H2 and C2F5PO3H2 are investigated as additives to phosphoric acid to improve the oxygen reduction reaction (ORR) of high‐temperature polymer electrolyte (PEM) fuel cells. A comprehensive characterization of acid mixtures composed of 20 wt % additive and 80 wt % concentrated phosphoric acid is
Mack, Florian, Galbiati, Samuele, Gogel, Viktor, Jörissen, Ludwig, Zeis, Roswitha   +4 more
openaire   +2 more sources

From Food to Power: Hydrogel Thermoelectrics for Ingestible Electronics

Advanced Functional Materials, EarlyView.
We introduce a fully edible thermoelectric–electrochromic platform that harvests heat from food and converts it into a visible color change. N‐type and p‐type hydrogel thermoelectric generators connected in series power anthocyanin‐based electrochromic displays, demonstrating the feasibility of safe, biodegradable, ingestible systems for on‐food ...
Antonia Georgopoulou, Bokeon Kwak, Dario Floreano, Esther Amstad   +3 more
wiley   +1 more source

Electrolyte Engineering toward Rational Electrode–Electrolyte Interfacial Designs for Metal Batteries

Advanced Science
Lithium, zinc, sodium, potassium, and magnesium metal batteries have emerged as the core direction of next‐generation energy storage technologies due to their ultrahigh theoretical capacities.
Yunlong Yang, Xuchao Yang, Xinle Liu, Lei Zhao, Dongxia Luo, Zhihua Hai, Yuantong Guo, Hongquan Niu, Fen Ran   +8 more
doaj   +1 more source

Polarizable Vanadium Dipoles Promote Water Dissociation on Vanadium‐Based Metal Organic Framework

Advanced Functional Materials, EarlyView.
The polarization of unpaired V 3d electrons weakens the H─O bond to improve water dissociation by the dual Vδ+:O─H and Pλ−:H─O coupling hydrogen bonds formation and relaxation. P@V‐MOF electrocatalyst shows low overpotentials (94 mV in acid, 178 mV in neutral, and 77 mV in alkaline solutions) with excellent stability for effective overall water ...
Xinjuan Liu, Jun Xu, Minmin Fan, Jingcheng Xu, Mengyuan Li, Yun Gong, Weiwei Yang, Lei Li, Yong Zhou, Deqiang Zhao, Yuhua Xue, Xingtao Xu, Chang Q. Sun, Liming Dai   +13 more
wiley   +1 more source

Receptor‐Free Identification of Toxic Gases Enabled by Hygroscopic Aqueous Salt Films

Advanced Functional Materials, EarlyView.
Water as a gas sensor coating sounds impossible—until it stops evaporating. Here, hygroscopic salt solutions (LiCl, LiBr, H3PO4) form non‐drying aqueous films on CNT chemiresistors under ambient air. Gases partition into these liquid layers, sometimes transforming into water, and generate salt‐specific resistance fingerprints across a four‐channel ...
Seongwoo Lee, Yun‐Tae Kim, Hwarang Choi, Sanghwan Park, Seongyeop Lim, Chang Young Lee   +5 more
wiley   +1 more source

Design and synthesis of battery electrolyte additives with dioxolone derivatives for lithium-ion batteries

, 2021
Vinylene carbonate (VC) derivatives are very significant structure in the field of electrolyte additives for Li-ion battery. VC derivatives could form a stable SEI, which could prevent electrolyte degradation by blocking the electron transport while ...
Jeong, Seo Young, Hong, Sung You
core