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Lithium ion battery

Xueyi Guo, Xiao Cao, Guoyong Huang, Qinghua Tian, Hongyu Sun
A novel process of lithium recovery as lithium ion sieve from the effluent obtained in the process of spent lithium-ion batteries recycling is developed. Through a two-stage precipitation process using Na2CO3 and Na3PO4 as precipitants, lithium is recovered as raw Li2CO3 and pure Li3PO4, respectively. Under the best reaction condition (both the amounts of Na2CO3 and Li3PO4vs. the theoretical ones are about 1.1), the corresponding recovery rates of lithium (calculated based on the concentration of the previous stage) are 74...
April 25, 2017: Journal of Environmental Management
Xuemin Li, Faith E Kersey-Bronec, John Ke, Jacqueline E Cloud, Yonglong Wang, Chilan Ngo, Svitlana Pylypenko, Yongan Yang
The development of high-performance silicon (Si) anodes for the next generation of lithium ion batteries (LIBs) evokes increasing interest in studying its lithiated counterpart - lithium silicide (LixSi). This article reports a systematic study of three thermodynamically-stable phases of LixSi (x = 4.4, 3.75, and 2.33) plus nitride-protected Li4.4Si, which are synthesized via the high-energy ball milling technique. All three LixSi phases show improved performance over unmodified Si, where Li4.4Si demonstrates optimum performance with discharging capacity of 3306 mAh/g initially and maintained above 2100 mAh/g for over 30 cycles and above 1200 mAh/g for over 60 cycles at the current density of 358 mA/g-Si...
April 28, 2017: ACS Applied Materials & Interfaces
Yu Li, Xingzhen Zhou, Ying Bai, Guanghai Chen, Zhaohua Wang, Hui Li, Feng Wu, Chuan Wu
As a typical multi-electron cathode material for lithium ion batteries, iron fluoride (FeF3) and its analogues suffer from poor electronic conductivity and low actual specific capacity. Herein, we introduce Ag nanoparticles by silver mirror reaction into the FeF3·0.33H2O cathode to build the electronic bridge between the solid (active materials) and liquid (electrolyte) interface. The crystal structures of as-prepared samples are characterized by XRD and Rietveld refinement. Moreover, the density of states (DOS) of FeF3·0...
April 28, 2017: ACS Applied Materials & Interfaces
Hao Liu, Zheng Zheng, Bochao Chen, Libing Liao, Xina Wang
In order to reduce the amount of inactive materials, such as binders and carbon additives in battery electrode, porous cobalt monoxide nanofibers were directly grown on conductive substrate as a binder/additive-free lithium-ion battery anode. This electrode exhibited very high specific discharging/charging capacities at various rates and good cycling stability. It was promising as high capacity anode materials for lithium-ion battery.
December 2017: Nanoscale Research Letters
Vaiyapuri Soundharrajan, Balaji Sambandam, Jinju Song, Sungjin Kim, Jeonggeun Jo, Pham Tung Duong, Seokhun Kim, Vinod Mathew, Jaekook Kim
In the present study, a metal-organic framework (MOF) derived from a facile water-assisted green precipitation technique is employed to synthesize phase-pure cobalt vanadate (Co3V2O8, CVO) anode for lithium-ion battery (LIB) application. The material obtained by this eco-friendly method is systematically characterized using various techniques such as powder X-ray diffraction (PXRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), X-ray photoelectron spectroscopy (XPS) and N2 adsorption-desorption measurements...
April 18, 2017: Journal of Colloid and Interface Science
Junzheng Chen, Wesley A Henderson, Huilin Pan, Brian R Perdue, Ruiguo Cao, Jian Zhi Hu, Chuan Wan, Kee Sung Han, Karl T Mueller, Ji-Guang Zhang, Yuyan Shao, Jun Liu
Li-S batteries have been extensively studied using rigid carbon as the host for sulfur encapsulation, but improving the properties with a reduced electrolyte amount remains a significant challenge. This is critical for achieving high energy density. Here, we developed a soft PEO10LiTFSI polymer swellable gel as a nanoscale reservoir to trap the polysulfides under lean electrolyte conditions. The PEO10LiTFSI gel immobilizes the electrolyte and confines polysulfides within the ion conducting phase. The Li-S cell with a much lower electrolyte to sulfur ratio (E/S) of 4 gE/gS (3...
April 27, 2017: Nano Letters
Feng Wu, Yusheng Ye, Jia-Qi Huang, Teng Zhao, Ji Qian, Yuanyuan Zhao, Li Li, Lei Wei, Rui Luo, Yongxin Huang, Yi Xing, Renjie Chen
The behavior of two-dimensional (2D) materials for energy-storage systems relates to their morphology and physicochemical properties. Although various 2D materials can be found in different fields, the open access of these materials has greatly hampered their practical applications, such as in lithium sulfur batteries, where the soluble intermediates should be controlled. Here, we have developed a facile approach to prepare 2D ultra-thin interconnected carbon fabrics (ICFs) with "bubble-like" morphology and abundant mesopores using a "blowing bubble" method...
April 27, 2017: ACS Nano
Sang-Ok Kim, Arumugam Manthiram
Phosphorus-rich CuP2 and its carbon composites have been investigated as an anode material for lithium-ion batteries. Through a facile, low-cost mechanochemical reaction, micro-sized composites composed of active CuP2 particles uniformly embedded in the carbon matrix have been successfully synthesized. Combined structural and electrochemical characterizations show that phosphorus-rich CuP2 undergoes irreversible reaction with lithium, giving metal-rich Cu3P and amorphous phosphorus at the end of the first cycle...
April 27, 2017: ACS Applied Materials & Interfaces
Yuan-Yuan Wang, Mi Zhang, Shun-Li Li, Shu-Ran Zhang, Wei Xie, Jun-Sheng Qin, Zhong-Min Su, Ya-Qian Lan
Two novel isostructural polyoxometalate (POM)-based metal-organic frameworks (MOFs) with diamond topology, NENU-506 and NENU-507, were hydrothermally synthesized. They not only combine the advantages of both POMs and MOFs, but also show excellent chemical and thermal stability. Notably, NENU-507 exhibited a high reversible capacity of 640 mA h g(-1) after 100 cycles when applied as an anode material in lithium-ion batteries.
April 26, 2017: Chemical Communications: Chem Comm
Hee-Soo Kim, Yoong Oh, Ki Hoon Kang, Ju Hwan Kim, Joosun Kim, Chong Seung Yoon
All-solid state Li-rechargeable batteries using a 500-nm-thick LiCoO2 (LCO) film deposited on two NASICON-type solid electrolyte substrates: LICGC(TM) (OHARA Inc.) and Li1.3Al0.3Ti1.7(PO4)3 (LATP) are constructed. The post-deposition annealing temperature prior to the cell assembly is critical to produce a stable sharp LCO/electrolyte interface and to develop a strong crystallographic texture in the LCO film, conducive to migration of Li ions. Although the cells deliver a limited discharge capacity, the LCO/LATP cell is stably cycled for 50 cycles...
April 26, 2017: ACS Applied Materials & Interfaces
Wangda Li, Andrei Dolocan, Pilgun Oh, Hugo Celio, Suhyeon Park, Jaephil Cho, Arumugam Manthiram
Undesired electrode-electrolyte interactions prevent the use of many high-energy-density cathode materials in practical lithium-ion batteries. Efforts to address their limited service life have predominantly focused on the active electrode materials and electrolytes. Here an advanced three-dimensional chemical and imaging analysis on a model material, the nickel-rich layered lithium transition-metal oxide, reveals the dynamic behaviour of cathode interphases driven by conductive carbon additives (carbon black) in a common nonaqueous electrolyte...
April 26, 2017: Nature Communications
Lorenzo Carbone, Daniele Di Lecce, Mallory Gobet, Stephen Munoz, Matthew Devany, Steve Greenbaum, Jusef Hassoun
Triethylene glycol dimethyl ether (TREGDME) dissolving lithium trifluoromethane sulfonate (LiCF3SO3) is studied as a suitable electrolyte medium for lithium battery. Thermal and rheological characteristics, transport properties of the dissolved species, and the electrochemical behavior in lithium cell represent the most relevant investigated properties of the new electrolyte. The self-diffusion coefficients, the lithium transference numbers, the ionic conductivity, and the ion association degree of the solution are determined by pulse field gradient nuclear magnetic resonance and electrochemical impedance spectroscopy...
April 25, 2017: ACS Applied Materials & Interfaces
Fang Lian, Fan Zhang, Lin Yang, Leilei Ma, Yadi Li
A heterostructural LiNi0.35Mn1.65O4-δ-LiNi0.5Mn1.5O4 was achieved via constructing the concentration-gradient material with an average composition of LiNi0.4Mn1.6O4-δ. The as-obtained samples have been characterized by the cross sectional scanning electron microscopy (SEM) and energy dispersive x-ray spectrometry (EDS) that the core material LiNi0.35Mn1.65O4-δ is encapsulated completely by a concentration-gradient shell with the outmost layer of LiNi0.5Mn1.5O4. Demonstrated by high resolution transmission electron microscopy (HRTEM) and X-ray photoelectron spectroscopy (XPS) analysis with low-energy Ar neutral beam etching method, the structurally stable P4332 phase on the surface coordinates the high conductive Fd-3m phase in the bulk without any detectable interface...
April 25, 2017: ACS Applied Materials & Interfaces
Yu-Fei Song, Jun Hu, Hongling Diao, Wenjing Luo
The development of advanced anode materials is of significance for the next generation of lithium ion batteries (LIBs). Herein, the imidazolium-based ionic liquids (ILs) was covalently grafted on the surface of graphene oxides (GO) via the carboxyl-amino bond,providing a loading hotbed for the Dawson-type POM of (NH4)6P2Mo18O62 (denoted as P2Mo18). The as-prepared GO-IL-P2Mo18 nanocomposite was characterized by FT-IR, Raman, TGA, SEM, TEM and XPS. When the nanocomposite was used as the anode material for lithium ion batteries (LIBs), it showed a high reversible capacity of 903...
April 25, 2017: Chemistry: a European Journal
Petronela Gotcu, Wilhelm Pfleging, Peter Smyrek, Hans J Seifert
Thermal behaviour and thermophysical properties of two typical cathodes for lithium-ion batteries were studied in dependence of temperature. The cathode materials are composite thick films containing a mixture of 90 wt% LiMeO2 active material (with Me = Co or Me = Ni + Mn + Co, respectively) and additives (binder and carbon black), deposited on aluminium current collector foils. The thermal conductivity of each cathode type and their corresponding composite layers were determined up to 573 K from the measured thermal diffusivity, the specific heat capacity and the estimated density based on metallographic methods and structural investigations...
April 25, 2017: Physical Chemistry Chemical Physics: PCCP
Wangda Li, Bohang Song, Arumugam Manthiram
The ever-growing demand for advanced rechargeable lithium-ion batteries in portable electronics and electric vehicles has spurred intensive research efforts over the past decade. The key to sustaining the progress in Li-ion batteries lies in the quest for safe, low-cost positive electrode (cathode) materials with desirable energy and power capabilities. One approach to boost the energy and power densities of batteries is to increase the output voltage while maintaining a high capacity, fast charge-discharge rate, and long service life...
April 25, 2017: Chemical Society Reviews
Hui Wang, Masaki Matsui, Hiroko Kuwata, Hidetoshi Sonoki, Yasuaki Matsuda, Xuefu Shang, Yasuo Takeda, Osamu Yamamoto, Nobuyuki Imanishi
Reversible dendrite-free low-areal-capacity lithium metal electrodes have recently been revived, because of their pivotal role in developing beyond lithium ion batteries. However, there have been no reports of reversible dendrite-free high-areal-capacity lithium metal electrodes. Here we report on a strategy to realize unprecedented stable cycling of lithium electrodeposition/stripping with a highly desirable areal-capacity (12 mAh cm(-2)) and exceptional Coulombic efficiency (>99.98%) at high current densities (>5 mA cm(-2)) and ambient temperature using a diluted solvate ionic liquid...
April 25, 2017: Nature Communications
M Agostini, S Brutti, M A Navarra, S Panero, P Reale, A Matic, B Scrosati
Electrochemical energy storage devices based on Li-ion cells currently power almost all electronic devices and power tools. The development of new Li-ion cell configurations by incorporating innovative functional components (electrode materials and electrolyte formulations) will allow to bring this technology beyond mobile electronics and to boost performance largely beyond the state-of-the-art. Here we demonstrate a new full Li-ion cell constituted by a high-potential cathode material, i.e. LiNi0.5Mn1.5O4, a safe nanostructured anode material, i...
April 24, 2017: Scientific Reports
Dong Jun Kim, Keith R Hermann, Aleksandrs Prokofjevs, Michael T Otley, Cristian Pezzato, Magdalena Owczarek, J Fraser Stoddart
Organic rechargeable batteries, composed of redox-active molecules, are emerging as candidates for the next generation of energy storage materials because of their large specific capacities, cost effectiveness, and the abundance of organic precursors, when compared with conventional lithium-ion batteries. Although redox-active molecules often display multiple redox states, precise control of a molecule's redox potential, leading to a single output voltage in a battery, remains a fundamental challenge in this popular field of research...
April 24, 2017: Journal of the American Chemical Society
Antonia Reyes Jiménez, Richard Klöpsch, Ralf Wagner, Uta C Rodehorst, Martin Kolek, Roman Nölle, Martin Winter, Tobias Placke
The next generation of lithium ion batteries (LIBs) with increased energy density for large-scale applications, such as electric mobility, but also for small electronic devices, e.g. micro-batteries and on-chip batteries, requires advanced electrode active materials with enhanced specific and volumetric capacities. In this regard, silicon (Si) as anode material has attracted much attention due to its high specific capacity. However, the enormous volume changes during lithiation/de-lithiation are still a main obstacle avoiding the broad commercial use of Si-based electrodes...
April 24, 2017: ACS Nano
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