black phosphorus battery

570 Westwood Plaza The anode in most lithium-ion batteries is made of graphite. Their paper is published in the journal Science. The study revealed the electrochemical activity of pure black P under different pressures and temperatures systematically. To overcome the continued formation and build-up of an ionically less conductive solid-electrolyte interphase, the team applied a thin polyaniline gel coating to the electrode materials – a strategy that also reinforced the transport path for lithium ions. Black phosphorus, which is a relatively rare allotrope of phosphorus, was first discovered by Bridgman in 1914. Towards higher energy density and fast chargingThe researchers tested the charging-cycle performance of their new electrode material by preparing sample electrodes using a method that is compatible with industrial fabrication processes. Publishing fundamental and applied research of the highest quality covering all aspects of graphene and related two-dimensional materials. “If scalable production can be achieved, this material may provide an alternative, updated graphite anode, and move us toward a lithium-ion battery with an energy density of higher than 350 watts-hour per kilogram,” says Sen Xin, a researcher at the Institute of Chemistry, Chinese Academy of Sciences, and one of the study’s co-first authors.This figure, he adds, means that an electric vehicle equipped with such a battery could travel 600 miles on a single charge – making it competitive with conventional combustion-engine vehicles. This 2D layered material had been considered before as a candidate for anodes, but tests showed that its electrochemical performance was far below its theoretical potential. Two-dimensional black phosphorus (2D BP) possesses huge potential in electrochemical energy storage field owing to its unique electronic structure, high charge carrier mobility, and large interlayer spacing. Red phosphorus and black phosphorus anodes have very similar lithiation/sodiation reaction mechanism, both of which can form Li 3 P/Na 3 P in a fully discharged state, thus having a high theoretical specific capacity of 2596 mAh/g [59,60,61].Unlike lithiation in red phosphorus, which only involves a one-step synthesis reaction, black phosphorus … In‐depth understanding of the redox reactions between BP and the alkali metal ions is key to reveal the potential and limitations of BP, and thus to guide the design of BP‐based composites for high‐performance alkali metal ion batteries. Researchers led by Ji at USTC and Xiangfeng Duan at the University of California, Los Angeles, made their new anode material by combining graphite with black phosphorus. Ionic scissors cut out phosphorene nanoribbons. Full details of the research are published in Science. Formation of Stable Phosphorus−Carbon Bond for Enhanced Performance in Black Phosphorus Nanoparticle−Graphite Composite Battery Anodes Jie Sun,†,# Guangyuan Zheng,‡ Hyun-Wook Lee,† Nian Liu,§ Haotian Wang,∥ Hongbin Yao,† Wensheng Yang,*,# and Yi Cui*,†,⊥ †Department of Materials Science and Engineering, ‡Department of Chemical Engineering, §Department of Chemistry, and Here we synthesized black P by a high pressure and high temperature … On its own, black phosphorus isn't a great material for batteries, but a Chinese-US team has figured out how to manipulate it so it works much better. Fax: (310) 267-4918, Copyright © 2020 California NanoSystems Institute, The black phosphorus composite material connected by carbon-phosphorus covalent bonds has a more stable structure and a higher lithium ion storage capacity. A battery’s performance thus depends largely on the materials used in the electrodes and electrolyte, which need to be able to store and transfer many lithium ions in a short period – all while remaining electrochemically stable – so they can be recharged hundreds of times. The anode in most lithium-ion batteries is made of graphite. As a result, the increase in battery capacity usually leads to a long charging time, which represents a critical roadblock for more widespread adoption of EVs.”. Black phosphorus is an allotrope of white phosphorus, and it is an electrode material with great potential to meet the requirements of fast charging. This deformation, which begins at the edges of the black phosphorus layers, reduces the material’s quality to such an extent that lithium ions cannot easily transfer through it. Lithium ions are the workhorse in many common battery applications, including electric vehicles. This kind of structure with an excellent interfacial contact between BP and RP would be beneficial to electron “If scalable production can be achieved, this material may provide an alternative, updated graphite anode, and move us toward a lithium-ion battery with an energy density of higher than 350 watts-hour per kilogram,” says Sen Xin, a researcher at the Institute of Chemistry, Chinese Academy of Sciences, and one of the study’s co-first authors.This figure, he adds, means that an electric vehicle equipped with such a battery could travel 600 miles on a single charge – making it competitive with conventional combustion-engine vehicles. A Black Phosphorus-Graphite Composite Anode for Li-/Na-/K-Ion Batteries Black phosphorus (BP) is a desirable anode material for alkali metal ion storage owing to its high electronic/ionic conductivity and theoretical capacity. A new electrode material could make it possible to construct lithium-ion batteries with a high charging rate and storage capacity. The website forms part of the Physics World portfolio, a collection of online, digital and print information services for the global scientific community. “For example, anode materials with high lithium storage capacity, such as silicon, are usually reported as having low lithium-ion conductivity, which hinders fast battery [charging]. Black phosphorus is the thermodynamically stable form of phosphorus at room temperature and pressure, with a heat of formation of -39.3 kJ/mol (relative to white phosphorus which is defined as the standard state). “For example, anode materials with high lithium storage capacity, such as silicon, are usually reported as having low lithium-ion conductivity, which hinders fast battery [charging]. Physics World represents a key part of IOP Publishing's mission to communicate world-class research and innovation to the widest possible audience. The researchers tested the charging-cycle performance of their new electrode material by preparing sample electrodes using a method that is compatible with industrial fabrication processes. Layered black phosphorus (BP) exhibits several attractive features for high-rate, high-capacity Li storage. This 2D layered material had been considered before as a candidate for anodes, but tests showed that its electrochemical performance was far below its theoretical potential. If scaled up, the anode material developed by researchers at the University of Science and Technology of China (USTC) and colleagues in the US, including California NanoSystems Institute Member Xiangfeng Duan, might be used to manufacture batteries with an energy density of more than 350 watt-hours per kilogram – enough for a typical electric vehicle (EV) to travel 600 miles on a single charge. Please enter the e-mail address you used to register to reset your password, Thank you for registering with Physics World Aug 18, 2020. (Image credit: Dong Yihan, SHI Qianhui and Liang Yan), Advanced Light Microscopy and Spectroscopy (ALMS) Lab, Electron Imaging Center for Nanomachines (EICN), Integrated NanoMaterials Laboraotry (INML), Molecular Screening Shared Resource (MSSR), Nano and Pico Characterization Laboratory (NPC), Nanoscience Workshop for Teachers Program. 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