Lithium-ion battery technology has been steadily approaching its intrinsic limits of energy density and cycling capacity, and solid-state electrolytes offer a more performant solution when compared with traditional organic electrolytes in terms of affinity with Li-metal electrodes and global battery safety. Oxide and sulfide-based solid electrolytes have been abundantly reported in literature owing

Lithium ion battery with ultra-thick electrode is hardly manufactured in practice due to its poor rate capability and large unusable capacity caused by high internal resistances in spite of the potential benefits of a high capacity and cost reduction by less inactive material usage in the same volume. In this work, we report the effectiveness of laser structuring of ultra-thick electrodes for high-energy

Na3V2(PO4)2O2F (NVPOF) is a promising cathode material for sodium-ion batteries (SIBs) due to its high working plateaus, small volume change and large theoretical capacity. However, the electrochemical performance is strongly hampered by its intrinsic inferior kinetics. Herein, NVPOF nanorods are uniformly anchored onto reduced-graphene oxide (rGO) nanosheets by a simple electrostatic assembly method

According to the conventional theory, a reversible amount of heat is created or consumed in a reversible working galvanic cell. This heat is induced by the reaction entropy and occurs during current flow. The reaction entropy describes the change of the open circuit voltage due to a temperature change of the cell. The cells new equilibrium voltage is described by the Nernst equation. In this article

In this paper we develop a multi-output, multi-task framework for approximating the outputs of complex physics-based computer models of fuel cells and batteries. For applications that require real-time or a high number of runs, such as optimization and control, the original computer model will be impractical, making such approximations necessary. It is normally the case that there are several quantities

Tin-based composites are promising anode materials for high-performance lithium-ion batteries (LIBs); however, insufficient conductivity, as well as fatal volume expansion during cycling lead to poor electrochemical reversibility and cycling stability. In this work, we demonstrate the lithium-ion storage behaviors of SnS2 anode material deposited on different electrode supports. The SnS2 grown on 3D

This paper proposes a novel approach for fault diagnosis of polymer electrolyte membrane fuel cell (PEMFC) with two-dimension (2D) image data, and investigates its effectiveness of identifying faults at different PEMFCs in terms of discrimination capacity and robustness. In the analysis, one-dimension (1D) voltage data from single cell is converted to corresponding 2D image using signal-to-image conversion

The effect of the morphology of Lyocell fibrillated fibers with different beating revolutions on pore structure and electrochemical properties of Lyocell fibrillated fiber paper-based (LF) separators for lithium-ion batteries is investigated. With raising the beating revolutions from 50,000 to 600,000, the number of coarse fibers decreases from 7851 to 743, and the mean fiber diameter decreases from

The objective of this paper is development of a remaining useful life (RUL) prediction algorithm based on estimation of parameters of an enhanced single particle model (eSPM) that could be implemented using vehicle charging data. First, we use data from an aging study conducted on LMO-NMC-cathode graphite-anode battery cells to develop an eSPM that can predict the evolution of parameters associated

In order to maximize the performance of lithium ion batteries, we have developed a new method for detecting the status of hybrid electric vehicle (HEV) batteries. The method obtains an accurate state of charge (SOC) by combining the SOC based on open circuit voltage (OCV) and the SOC based on current integration. In addition to that, our method has an auto-tuning function, which is realized by relatively

In this work, the synthesis of Na3Zr2Si2PO12 (NZSP) solid electrolytes is demonstrated through a low temperature and rapid microwave sintering process and its application in Na-ion batteries is investigated. The quickly and uniformly heating of microwave sintering can inhibit the excessive grain growth significantly, resulting in the fine grained NZSP electrolyte with high relative density of 96%.

Energy storage technologies are developed over the past decades, such as metal-air batteries. The large-scale application of these devices is finite due to slow kinetics of the oxygen evolution reaction (OER). In order to solve this issue, plasma enhanced atomic layer deposition (PE-ALD) is used to synthesize high performance nano-oxide (NiOx@Co3O4/CC) electrocatalyst for OER applications. Herein,

This paper contains a review of developments in anionic batteries. Among the several battery chemistries, Li-ion batteries (LIBs) have excelled in the past two decades. However, new cation based rechargeable battery chemistries of Na+, K+, Mg2+, Ca2+ shuttle have gained interest. Apart from cations, anionic shuttle dependent batteries offer great potential, too. While nickel metal hydride (Ni-MH) and

Degradation of polymer electrolyte membrane fuel cells (PEMFC) is investigated through an accelerated stress test (AST) consisting of load-induced humidity cycling combined with open circuit voltage. This combined stressor-AST was designed to mimic real operating conditions. Commercially available membrane-electrode assemblies with an initial voltage of about 0.7 V at 0.5 A cm−2 showed a performance

This paper proposes a bi-level energy management strategy of plug-in hybrid electric vehicles with intelligent state-of-charge (SOC) reference for satisfactory fuel economy and battery lifetime. In the upper layer, Q-learning algorithm is delegated to generate the SOC reference before departure, by taking the model nonlinearities and physical constraints into account while paying less computing labor

Si has been regarded as one of the most promising anodes for next-generation lithium ion batteries for its high theoretical capacity (3579 mA h g−1) and low operating potential of 0.4 V vs Li/Li+. However, the huge volume change during (de)lithiation and low electronic conductivity impede its further commercial applications. In this work, Zn/Si porous multi-layer films with controllable layer number

Recently, several defect control routes benefit the development of potassium ion batteries (PIBs) by significantly ameliorating K+ diffusion kinetic and volume expansion in the reaction. However, formation of defects in nanostructure always requires delicate control technology and high cost. In this work, biomass corn silk is applied to serve as inexpensive carbon precursor to fabricate porous carbon

The ionic nature of the perovskite material results in a great number of defects in the perovskite film which limits the efficiency and stability of perovskite solar cells. The passivation of the defects can effectively suppress the non-radiative recombination of carriers and improve the photovoltaic performance and stability of perovskite solar cells. In this paper, quinoline is introduced into the

Aqueous zinc-based batteries are expected to be realized as low-cost and high energy density batteries; however, dendrite formation during the charging process of zinc-air batteries remains a major problem. Dendrite growth from the zinc anode is known to cause short-circuiting in zinc-based batteries because of their fast growth toward the cathode and it seems to be the main cause of cycle degradation