Showing papers in "Journal of Power Sources in 2014"

TL;DR: In this article, a review highlights the recent research advances in active nanostructured anode materials for the next generation of Li-ion batteries (LIBs), and the effect of nanoscale size and morphology on the electrochemical performance is presented.

TL;DR: In this paper, the methods for monitoring the battery state of charge, capacity, impedance parameters, available power, state of health, and remaining useful life are reviewed with the focus on elaboration of their strengths and weaknesses for the use in on-line BMS applications.

TL;DR: In this paper, the effects of temperatures in the range of −20°C to 70°C on the ageing behavior of cycled Lithium-ion batteries are investigated quantitatively by electrochemical methods and post-mortem analysis.

TL;DR: In this paper, major technical solutions include: (1) applying electrochemical models to predict the critical conditions for deposition initiation; (2) preventions by improved battery design and material modification; and (3) applying adequate charging protocols to inhibit lithium deposition.

TL;DR: In this paper, an extensive set of accelerated aging tests has been carried out employing a Li-ion high energy 18650 system (2.05-Ah), negative electrode: carbon, positive electrode: Li(NiMnCo)O2).

TL;DR: In this article, the aging mechanism of different types of lithium-ion batteries differs and the loss of lithium inventory, loss of active material, and the increase in resistance may result in battery aging.

TL;DR: In this paper, the thermal runaway features of a 25-Ah large format prismatic lithium ion battery with Li(NixCoyMnz)O2 (NCM) cathode were evaluated using the extended volume-accelerating rate calorimetry (EV-ARC).

TL;DR: In this paper, the NiCo2S4 nanotube arrays hybrid electrode exhibits an ultrahigh specific capacitance of 14.39 ± 1.39 µm at 5 µm and cycling stability of 92% after 5000 cycles at a high mass loading of 6 µm.

TL;DR: A review of battery prognostics and health management techniques, with a focus on major unmet needs in this area for battery manufacturers, car designers, and electric vehicle drivers, is provided in this article.

TL;DR: In this paper, a holistic aging model from accelerated aging tests is presented to analyze the impact of different impact factors on lithium-ion battery aging and lifetime estimation, which is a fundamental aspect for successful market introduction in high-priced goods like electric mobility.

TL;DR: In this paper, the authors reviewed the recent progress in Si-based materials utilized in lithium-ion batteries in terms of composite systems, nano-structure designs, material synthesis methods, and electrochemical performances.

TL;DR: In this paper, a summary, comparison and evaluation of the different active battery equalization methods, providing a table that compares them, which is helpful to select the suitable equalization method depending on the application.

TL;DR: In this paper, an electro-thermal model for cylindrical batteries is presented, which consists of two sub-models, an equivalent-circuit electrical model and a two-state thermal model which are coupled through heat generation and temperature dependence of the electrical parameters.

TL;DR: In this article, the formation and stability of the solid electrolyte interface (SEI) layer for lithium ion batteries is reviewed, including discussion of the formation, growth and stability on graphite anode materials.

TL;DR: In this article, the authors investigated the effects of mechanical stress on lithium-ion battery life by monitoring the stack pressure and capacity of constrained commercial Li-ion pouch cells during cycling.

TL;DR: In this paper, the state of the art for different choices of electrolytes; concepts, design, and materials, and how the resulting chemical and physical properties of the electrolyte affect the overall Li/S battery performance.

TL;DR: In this paper, a combination of the sensible and latent heat storage together with the improved heat conduction outside of the battery pack leads to a significant decrease in the temperature rise inside a typical Li-ion battery pack.

TL;DR: In this article, the authors present the latest fundamental studies and technological development of various nanostructured cathode materials for Li-S batteries, including their preparation approaches, structure, morphology and battery performance.

TL;DR: In this paper, the performance of a Li Al 0.10 Ni 0.76 Co 0.14 O 2 (NCA) cathode/graphite cell was greatly improved when a DOD range in charge-discharge cycling (ΔDOD) was restricted.

TL;DR: In this paper, the aging and degradation of graphite/composite metal oxide cells were examined, and non-destructive electrochemical methods were used to monitor the capacity loss, voltage drop, resistance increase, lithium loss and active material loss during the life testing.

TL;DR: In this paper, the authors examined the efficacy of layered molybdenum disulphide (MoS 2 ) as a host electrode material for rechargeable Na-ion batteries.

TL;DR: In this article, two kinds of mathematics-based battery models intended for use in hybrid and electric vehicle simulation are surveyed: circuit-based and chemistry-based, which abstracts away the electrochemistry into equivalent electrical components.

TL;DR: In this article, the performance data of metal oxide thin film electrodes by microwave-assisted as an inexpensive, quick and versatile technique is presented for supercapacitor performance data, and metal oxide films will continue to play a major role in supercapACitor technology and are expected to considerably increase the capabilities of these devices in near future.

TL;DR: In this article, a cost model for vanadium and iron-vanadium redox flow batteries is developed to estimate stack performance at various power densities as a function of state of charge and operating conditions.

TL;DR: In this paper, the authors apply NREL's battery lifetime analysis and simulation tool for vehicles (BLAST-V) to examine the sensitivity of BEV utility to range anxiety and different charging infrastructure scenarios, including variable time schedules, power levels, and locations (home, work, and public installations).

TL;DR: In this paper, hierarchical Co3O4@MnO2 core-shell arrays on Ni foam have been fabricated by a facile hydrothermal approach and further investigated as the electrode for high-performance supercapacitors.

TL;DR: In this article, a simple method has been developed to prepare graphene/activated carbon (AC) nanosheet composite as high-performance electrode material for supercapacitor, which has a relatively high packing density of similar to 0.3 g cm(-3) and large specific surface area of 2106 m(2) g(-1), as well as containing plenty of mesopores.

TL;DR: In this article, the SEI film formed in electrolyte solution with LiNO 3, which is an effective additive to suppress the shuttle, cannot maintain a stable state without polysulfides.

TL;DR: In this article, a low temperature methodology was proposed to separate and synthesize cathode materials from mixed cathode material, and the precipitated product can then be reacted with lithium carbonate to form LiNi x Mn y Co z O 2.

TL;DR: In this paper, a sandwiched cooling structure using copper metal foam saturated with phase change materials was designed to manage a high-powered Li-ion battery package within the required safe temperature range.