Inhibition of polysulfide shuttling in high-polarity electrolytes via liquid/quasi-solid interface in lithium-sulfur batteries
Sun Z, Zhang J, Yin L, et al. Conductive porous vanadium nitride/graphene composite as chemical anchor of polysulfides for lithium-sulfur batteries. Nat Commun, 2017, 8: 14627 Article Google Scholar Liu YT, Wang L, Liu S, et al. Constructing high gravimetric and volumetric capacity sulfur cathode with LiCoO 2 nanofibers as carbon …
Monodispersed MOF-Modified Nanofibers as Versatile Building Blocks for the Ion Regulations in Safe Lithium–Sulfur Batteries
Lithium–sulfur battery is the most promising candidate for the next generation of rechargeable batteries because of the high energy density. However, the severe shuttle effect of lithium polysulfides (LiPSs) and degradation of the lithium anode during cycling are significant issues that hinder the practical application of lithium–sulfur …
Interface modification in solid-state lithium batteries based on …
This strategy can decrease the Li/garnet interfacial resistance from 986 to 136.7 Ω•cm 2 and show excellent stability against metallic lithium. Based on the …
In-situ construction of a Mg-modified interface to guide uniform lithium deposition for stable all-solid-state batteries …
The unstable electrolyte/lithium (Li) anode interface has been one of the key challenges in realizing high energy density solid-state lithium metal batteries (LMBs) applications. Herein, a dense and uniform silver (Ag) nano interlayer with a thickness of ∼35 nm is designed accurately by magnetron sputtering technology to optimize the …
A high energy and power all-solid-state lithium battery enabled by ...
Fabrication of all-solid-state lithium battery. Active material NCM721 and the modified LPSCl were uniformly mixed in a mass ratio of 70:30 to prepare the cathode composite. The fabricated modified LPSCl-PEO film was cut into circular discs with 10 mm diameter. The mass of the used electrolyte film is around 9 mg.
Surface-modified and sulfide electrolyte-infiltrated LiNi0.6Co0.2Mn0.2O2 cathode for all-solid-state lithium batteries …
We report a surface modified and sulfide electrolyte-infiltrated LiNi 0.6 Co 0.2 Mn 0.2 O 2 cathode to inhibit the interface side reactions and enhance the physical contact. The Li 10 GeP 2 S 12-infiltrated electrode using LiNi 0.6 Co 0.2 Mn 0.2 O 2 cathode with Li 1.5 Al 0.5 Ge 1.5 (PO 4) 3 coating exhibits outstanding rate performance, excellent …
The c s variable is solved for in an extra dimension, using an internal discretization in the particle dimension, not visible in the ordinary model geometry. The cs dependent variable, named liion.cs_xxx (where xxx is the tag of the Porous Electrode node, for instance pce1), can be used to set for instance concentration varying diffusion coefficients in the particle.
Electrochemical Properties of the Interface Modified Li-Metal All Solid State Battery (Li…
However, a Li-metal anode battery is limited to use because of poor safety and electrochemical instability because of dendritic growth and "dead-lithium" outbreak during cycling in a flammable liquid electrolyte system. …
A Solid-State Lithium Battery with PVDF–HFP-Modified Fireproof …
For solid-state lithium metal batteries (SSLBs), gel polymer electrolytes (GPEs) are of interest due to the special structural features that avoid contact problems at the solid–solid interface and reduce safety issues. However, the practical utilities are still unsatisfying due to the decomposition of conventional liquid electrolytes under high …
Electrochemical and compositional characterization of solid interphase layers in an interface-modified solid-state Li–sulfur battery …
The Li+ transport kinetics at the solid–solid electrode|electrolyte interfaces are crucial for the stable and durable performance of solid-state batteries (SSBs). A poor interface due to mechanical problems and/or (electro-)chemical instabilities will curtail the performance of such batteries. Herein, we pre
In solid-state lithium metal batteries, the crystallization of Li-ions deposited at interfaces remains unclear. Here, authors use molecular dynamics simulations to …
An interfacial amorphous lithium layer is formed at the Li–SE interface as a result of the large lattice mismatch between Li metal and the SE 27,28 the interfacial amorphous layer, the Li ...
Recent progress of advanced separators for Li-ion batteries
The current state-of-the-art lithium-ion batteries (LIBs) face significant challenges in terms of low energy density, limited durability, and severe safety concerns, which cannot be solved solely by enhancing the performance of electrodes. Separator, a vital component in LIBs, impacts the electrochemical properties and safety of the battery …
Fast Lithium Intercalation Mechanism on Surface‐Modified …
Our electrochemical investigations clarified the superior rate capability of lithium intercalation at the modified LiCoO 2 –electrolyte interface. The relatively slow lithium diffusion in the dense inner layer can be inferred from the interfacial structures. This inference redirects our attention to the differences in the lithium desolvation ...
Recent advances in interface engineering of silicon anodes for …
Recent advances in interface engineering of silicon anodes for enhanced lithium-ion battery performance. Author links open overlay panel ... can be grafted onto the silicon surface for different applications to selectively and precisely modulate and modify the interface. Modified interfacial layers are homogeneous and contain multiple phases ...
Dynamic shielding of electrified interface enables high-voltage lithium batteries …
Conversely, Li–O (EC) and Li–O (DMC) exhibit higher coordination tendency toward Li + than the Li–O (PF 6 −) from the carbonate-based electrolyte. Figure 5 C shows the calculated probability of the Li + solvation structure from the pie graph, which indicates numerous AGGs and CIPs clusters in the bulk with the FSI − anion/TFTMS …
The Fluorine‐Rich Electrolyte as an Interface Modifier to Stabilize ...
Abstract. Lithium (Li) metal batteries (LMBs) are still limited by lithium dendrite growth and solvated structure at low temperatures. A stable solid electrolyte …
Surface-modified composite separator for lithium-ion battery with ...
1. Introduction. Recent years have witnessed the tremendous development of lithium-ion batteries (LIBs) for consumer electronics, electric vehicles and energy storage systems due to its attractive characteristics containing high energy density, long cycle life and flexible design procedure [[1], [2], [3]].Many cathode and anode materials have been …
Understanding Battery Interfaces by Combined Characterization …
1 Introduction. The advent of electrochemical energy storage and conversion devices in our everyday life, with the Li-ion batteries being the most obvious example, has provoked ever-increasing attention to the comprehension of complex phenomena occurring at the solid/liquid interface, where charges, ions and electrons, are exchanged.
Understanding Battery Interfaces by Combined Characterization …
The analysis allows for fitting the active materials mass, which may be modified if LAM is present during the degradation of the battery. Its effects are observed by a shrinkage of …
Interface Engineering on Constructing Physical and Chemical Stable Solid-State Electrolyte Toward Practical Lithium Batteries …
In addition to lithium metal and Li-Si alloys, other Li-alloys are also used as anodes in all-solid-state batteries, such as Li-In, Li-Al, Li-Zn, Li-Mg, Li-Si, and Li-Sn alloys. These alloy electrodes exhibit higher voltages compared to lithium metal electrodes, and they form more stable interfaces with the solid-state electrolyte.
Recent advances in interface engineering of silicon anodes for …
Silicon, with its remarkable specific capacity of 4200 mAh g −1 and abundant natural resources, presents a promising anode material for lithium-ion batteries …
Surface modified by SnI2 boosts Dendrite-Free all-solid-state lithium metal batteries …
Moreover, Li metal can be applied in many battery systems such as Li-S batteries, Li-air batteries, or other batteries paired with transition-metal oxides cathodes [7]. Meanwhile, solid state electrolyte (SSE) has been used in many different metal battery systems to achieve higher security.
Fabrication and application of TiO2-modified PMIA separators with strong mechanical properties in lithium-ion batteries | Ionics …
A TiO2/PMIA composite separator was prepared using poly(m-phenylene isophthalamide) (PMIA) as the base separator and polyacrylonitrile (PAN) as the binder to load TiO2 particles on its surface. The tensile strength of the TiO2/PMIA composite separator (37 MPa) was found to be greater than that of the pure PMIA separator (22 …
Silane-modified Li6.4La3Zr1.4Ta0.6O12 in thermoplastic
The interface stability between CSEs and lithium metal anode at the working temperature was investigated by the polarization tests of Li/CEPs/Li symmetric battery under different currents. The LFP/CSEs/Li of all-solid-cells were galvanostatically cycled on the battery test system (LANND CT2001, Wuhan, China).
Electrochemical and compositional characterization of solid interphase layers in an interface-modified solid-state Li–sulfur battery …
A poor interface due to mechanical problems and/or (electro-)chemical instabilities will curtail the performance of such batteries. Herein, we present a detailed study on the interfaces of a lithium–sulfur (Li–S) SSB with a Li anode, Li–garnet (LLZO) solid
Maximizing interface stability in all-solid-state lithium batteries ...
Nature Communications - The positive electrode/electrolyte interface is crucial for the performance of all-solid-state lithium batteries. Here, authors use a …
Achieving stable interface for lithium metal batteries using fluoroethylene carbonate-modified …
Achieving stable interface for lithium metal batteries using fluoroethylene carbonate-modified garnet-type Li 6.4 La 3 Zr 1.4 Ta 0.6 O 12 composite electrolyte Author links open overlay panel Qiujun Wang a, Ya Su a, …
Solid-state lithium battery is considered as a promising solution to improve safety performance. However, huge interfacial resistance and polarization between cathode and solid electrolyte are still big challenges for further application. In this study, an improved cathode/Li6.4La3Zr1.4Ta0.6O12 garnet electrolyte interface with low …
Highly stable garnet solid electrolyte based Li-S battery with modified anodic and cathodic interfaces …
A highly cycling stable Li-S battery has been fabricated using a Ta-doped garnet (Li 6.4 La 3 Zr 1.4 Ta 0.6 O 12, LLZTO) solid electrolyte.The battery has achieved high reversible specific capacity of 805 mA h g −1 after 500 cycles at a charge/discharge current density of 0.5 and 1.5 mA cm −2, respectively at 25 C, and the decay rate of …
Li-current collector interface in lithium metal batteries
Interfaces within batteries, such as the widely studied solid electrolyte interface (SEI), profoundly influence battery performance. Among these interfaces, the solid–solid interface between electrode materials and current collectors is crucial to battery performance but has received less discussion and attention. This review highlights the …
Elaborate interface design of CoS2/Fe7S8/NG heterojunctions modified on a polypropylene separator for efficient lithium-sulfur batteries ...
Lithium-sulfur (Li-S) batteries are considered as the most promising energy storage system due to their high specific capacity and resource abundance. However, the low electronic conductivity of S 8 and Li 2 S, shuttle effects of lithium polysulfides (LiPSs), and sluggish reaction kinetics hinder the advance of Li-S batteries. ...
Solid-state batteries encounter challenges regarding the interface ...
For solid-state electrolytes, the contact interface between the solid-state electrolyte and the lithium metal is usually fragile and may have high contact resistance, …
