Our Energy Storage Solutions
Discover our range of innovative energy storage products designed to meet diverse needs and applications.
- All
- Energy Cabinet
- Communication site
- Outdoor site
SO 3 -COF@Al 2 O 3 modified cathode electrode materials enhance the cycling ability of lithium sulfur batteries …
Herein, a covalent organic framework (SO 3-COF) containing sulfonic acid groups has been developed on the surface of alumina by a one-step method, labeled as SO 3-COF@Al 2 O 3.The experimental results show that SO 3-COF@Al 2 O 3 can effectively inhibit the shuttle effect of soluble lithium polysulfide (LiPSs) in LSBs after loading the …
Catalytic engineering for polysulfide conversion in high-performance lithium-sulfur batteries …
However, the increase in sulfur load greatly affects the electrochemical performance of the battery, which is likely to cause material inactivation. The number of cycles reflects the stability levels of the catalyst, positive electrode, and negative electrode in the
Solid-State Transformations of Active Materials in the Pores of Sulfur…
Sulfurized polyacrylonitrile (SPAN) has emerged as an excellent cathode material for lithium–sulfur batteries (LiSBs), and it addresses the shuttle effect through a solid‒solid reaction. However, the actual sulfur loadings in SPAN often remain below 40 wt%. Due to the susceptibility of polysulfides-to-nucleophilic reactions with electrolytes, …
Advances in High Sulfur Loading Cathodes for Practical …
Among these aspects, improving the areal sulfur loading in cathodes is the most direct and effective way to improve the energy density of Li S batteries, which can be attributed to …
High‐Loading Lithium‐Sulfur Batteries with Solvent‐Free …
To maximize the actual energy density of the Li-S batteries for practical applications, it is crucial to escalate the areal capacity of the sulfur cathode by fabricating …
Mechanism Exploration of Li2S–Li2O–LiI Positive Electrodes with …
Another way to improve sulfur utilization in Li/S batteries is to construct a three-phase contact between Li 2 S, electronic, and ionic conductive agents to utilize Li 2 S as an electrode material. It has been reported that the positive electrode composites with Li 2 S, conductive carbon, and a sulfide solid electrolyte (SE), the Li 2 S-SE-C system, …
Realizing high-capacity all-solid-state lithium-sulfur batteries …
We further demonstrate that the use of the low-density solid electrolyte increases the electrolyte volume ratio in the cathode, reduces inactive bulky sulfur, and …
Effects of Catalysis and Separator Functionalization on High-Energy Lithium–Sulfur Batteries…
The electrochemical performance test of the sulfur positive electrode with content of 63% and load of 1.2–1.5 mg cm −2 shows that the initial discharge specific capacity of 1215 mAh g −1 is ...
Superior cycling life of Li–S batteries with high sulfur loading …
To demonstrate the catalytic activities of layered MoO 3 nanoflakes towards the polysulfide redox reactions, CV measurements (Fig. 4 a and b) are firstly conducted at a scan rate of 0.1 mV s −1 within the voltage window of 1.7–2.8 V (vs. Li/Li +).As shown in Fig. 4 a, the battery with pure CP electrode exhibits two distinct peaks at 2.27 and 2.07 V in …
Realizing high-capacity all-solid-state lithium-sulfur batteries …
Lithium-sulfur all-solid-state batteries using inorganic solid-state electrolytes are considered promising electrochemical energy storage technologies. However, developing positive electrodes with ...
Electrochemical Impedance Spectroscopy of Li-S Batteries: Effect of Atomic Vanadium
Introduction Lithium-sulfur (Li−S) batteries have emerged as a ''hot topic'' in both battery research and industry due to their potential low cost and eco-friendliness, coupled with a noteworthy theoretical energy density of 2600 Wh/kg for S …
Application of sulfur-based composite materials in the positive electrode of lithium-sulfur batteries …
Application of sulfur-based composite materials in the positive electrode of lithium-sulfur batteries Tonglin Li* Shanghai World Foreign Language Academy, 200000 Shanghai, China Abstract. Traditional lithium-ion batteries are no longer able to keep up
ZIF-67 derived material encapsulated V2O3 hollow sphere structure of Co-NC@V2O3-sp used as a positive electrode material for lithium-sulfur batteries
Lithium-sulfur (Li-S) batteries receive considerable attention for their high energy density, but their slow reaction kinetics and poor shuttle effects raise concerns. Here, synthesized V 2 O 3 spheres were used as substrate templates, and ZIF-67 particles were grown on the surface of V 2 O 3 by in-situ growth method. ...
Recent advances in inhibiting shuttle effect of polysulfide in lithium-sulfur batteries …
The electrochemical reaction process of Li S battery is significantly different from that of Li-ion battery. In the first stage of reaction, S 8 molecules were mainly reduced to soluble polysulfide molecules S x 2− (8 ≥ x ≥ 4), with a potential of about 2.4 V vs. Li/Li +; in the second stage, polysulfide molecules are reduced to unsolvable …
Superior cycling life of Li–S batteries with high sulfur loading …
Fig. 3 a presents the XRD patterns from 10 to 70 of the MoO 3-CP and CP electrodes, in which a strong peak identified as the (002) peak of carbon ((JCPDS # 41–1487) is detected.For MoO 3-CP electrode, four strong additional diffraction peaks are found, which are ascribed to the (020), (110), (040), and (021) characteristic peaks of …
Electrode materials for lithium-ion batteries
3. Recent trends and prospects of cathode materials for Li-ion batteries The cathodes used along with anode are an oxide or phosphate-based materials routinely used in LIBs [38].Recently, sulfur and potassium …
A sulfur–microporous carbon composite positive electrode for lithium/sulfur and silicon/sulfur rechargeble batteries …
Semantic Scholar extracted view of "A sulfur–microporous carbon composite positive electrode for lithium/sulfur and silicon/sulfur rechargeble batteries" by Takuya Takahashi et al. DOI: 10.1016/J.PNSC.2015.11.011 Corpus ID: 96958037 A sulfur–microporous carbon ...
Recent advances in developing organic positive electrode materials for rechargeable aluminum-ion batteries …
Herein, the recent advances in developing organic positive electrode materials for Al-ion batteries is reviewed, ... An aluminum-sulfur battery with a fast kinetic response Angew. Chem. Int. Ed., 57 (2018), pp. 1898-1902, 10.1002/anie.201711328 View in …
Impact of Different Conductive Polymers on the Performance of …
The uncoated and coated sulfur powders were used (as active material) in positive electrodes of Li–S cells with a relatively high sulfur loading of ∼4.5 mg/cm 2 using …
Cathode porosity is a missing key parameter to optimize lithium-sulfur battery energy density | Nature …
For high-energy lithium-sulfur batteries, a dense electrode with low porosity is desired to minimize ... 60%, 50%, and 40%, respectively, for a sulfur loading of 5 mg cm −2. Materials ...
Layered double hydroxides used as the sulfur hosts for lithium …
Using high-performance sulfur host materials such as layered double hydroxides (LDHs) to load sulfur is an effective way to improve the performance of the …
Understanding Li-based battery materials via electrochemical impedance …
Lithium-based batteries are a class of electrochemical energy storage devices where the potentiality of electrochemical impedance spectroscopy (EIS) for understanding the battery charge storage ...
Lithium-Sulfur Battery Metal Organic Framework-Based Sulfur …
Herein, we provide a comprehensive overview of MOF-based sulfur-loaded materials and discuss the charge/discharge mechanisms, strategies of enhancing battery performance, …
A near dimensionally invariable high-capacity positive electrode material | Nature Materials
Delivering inherently stable lithium-ion batteries is a key challenge. Electrochemical lithium insertion and extraction often severely alters the electrode crystal chemistry, and this contributes ...
A review of cathode materials in lithium-sulfur batteries | Ionics
Lithium-sulfur battery, one of the most prominent and widely studied batteries, takes sulfur as the cathode which has rich reserves in the earth. It has the characteristics of high energy density, high theoretical specific capacity, affordable cost, and environment-friendly. Although this system has many advantages, it has many essential shortcomings, such as …
Strategies toward High-Loading Lithium–Sulfur …
Specifically, we review the principle and technical challenges for lithium–sulfur batteries and recent advancements in electrode materials with adsorption and catalysis design, as well as the …
Development of vanadium-based polyanion positive electrode active materials for high-voltage sodium-based batteries …
Polyanion compounds offer a playground for designing prospective electrode active materials for sodium-ion storage due to their structural diversity and chemical variety. Here, by combining a ...
Review article Extensive comparison of doping and coating strategies for Ni-rich positive electrode materials …
In modern lithium-ion battery technology, the positive electrode material is the key part to determine the battery cost and energy density [5].The most widely used positive electrode materials in current industries are lithiated iron phosphate LiFePO 4 (LFP), lithiated manganese oxide LiMn 2 O 4 (LMO), lithiated cobalt oxide LiCoO 2 …
Advances in High Sulfur Loading Cathodes for Practical Lithium‐Sulfur Batteries
3 Li S Batteries with High Sulfur Loading Cathodes Recently, more researchers have focused on the rational design of host structures to achieve high sulfur loading of electrodes in Li S batteries. [15, 16] Besides, various binders, modified separators, and interlayers have been explored to alleviate the worse shuttle effect that comes with the …
Catalytic effect of carbon-based electrode materials in energy storage devices | Science China Materials …
The catalytic effect of electrode materials is one of the most crucial factors for achieving efficient electrochemical energy conversion and storage. Carbon-based metal composites were widely synthesized and employed as electrode materials because of their inherited outstanding properties. Usually, electrode materials can provide a …
Membrane and electrode engineering of high-performance lithium-sulfur batteries modified by stereotaxically-constructed graphene …
The sulfur loading capacity of the positive electrode material is 70 wt %, exhibiting a high initial discharge capacity of 1008 mAh g −1 at 0.5C. Moreover, a high sulfur load of 1.6 mg cm −1 results in reaching a discharge capacity of …
Understanding the electrochemical processes of SeS 2 positive …
Sulfur (S) is considered an appealing positive electrode active material for non-aqueous lithium sulfur batteries because it enables a theoretical specific cell energy of 2600 Wh kg −1 1,2,3. ...
Layered double hydroxides used as the sulfur hosts for lithium-sulfur batteries …
performance sulfur host materials such as layered double hydroxides (LDHs) to load sulfur is an effective way to improve the performance of the sulfur positive electrode. In this work, three popular LDHs (NiFe-LDH, NiAl-LDH, and ZnAl-LDH) with similarof sulfur.