The present disclosure is directed to providing improved processability by forming a protective film on the surface of lithium metal used as an electrode layer through a simple process, and to improving the cycle characteristics of a lithium metal secondary battery by forming a stable protective film. The present disclosure provides a method for manufacturing a negative …
Positive electrodes for Li-ion and lithium batteries (also termed “cathodes”) have been under intense scrutiny since the advent of the Li-ion cell in 1991. This is especially true in the past decade.
Sulfurized polyethylene glycol (SPEG), containing ca. 61 wt% of sulfur, is a promising positive electrode material that exhibits a large initial discharge capacity of more than 800 mAh g −1. In this study, we present the local structure and electrochemical performances of SPEG.
The material’s characteristics and its application in the thermal management of lithium-ion batteries are investigated. Polyethylene glycol (PEG) serves as the medium for phase change; expanded graphite (EG) and multi-walled carbon nanotubes (MWCNT) are incorporated.
Ultimately, the development of electrode materials is a system engineering, depending on not only material properties but also the operating conditions and the compatibility with other battery components, including electrolytes, binders, and conductive additives. The breakthroughs of electrode materials are on the way for next-generation batteries.
Summary and Perspectives As the energy densities, operating voltages, safety, and lifetime of Li batteries are mainly determined by electrode materials, much attention has been paid on the research of electrode materials.
Designing a high-capacity positive electrode material is critical for the advancement of lithium-ion batteries. Sulfurized polyethylene glycol (SPEG), containing ca. 61 wt% of sulfur, is a promising positive electrode material that exhibits a large initial discharge capacity of more than 800 mAh g −1.
The present disclosure is directed to providing improved processability by forming a protective film on the surface of lithium metal used as an electrode layer through a simple process, and to improving the cycle characteristics of a lithium metal secondary battery by forming a stable protective film. The present disclosure provides a method for manufacturing a negative …
Lithium-sulfur batteries are deemed to be state-of-the-art secondary. However, some challenging issues like the shuttle of polysulfide prevent their commercial applications. Polyethylene glycol (PEG) was designed as the cathode or separator coating material to meet these challenges. Here, the relevant properties of PEG400 are systemically ...
The composite ternary positive electrode material comprises a ternary positive electrode material, polyaniline and polyethylene glycol, wherein the polyaniline and the polyethylene glycol coat the surface of the ternary positive electrode material. The invention further provides a preparation method and application of the composite ternary positive electrode material. According to the ...
Spinel phase LiMn2O4 is synthesized by a polyethylene glycol (PEG)-assisted co-precipitation method. The samples are characterized by X-ray diffraction and scanning electron microscopy techniques. The LiMn2O4 samples synthesized have similar morphology and uniform size of about 150–350 nm. The electrochemical measurements show that as-prepared …
In this work, positive electrodes based on PAN-carbon fibers were manufactured with powder impregnation (siphon impregnation) technique using a water-based slurry containing lithium iron phosphate (LFP) as the active electrode material and the water-soluble binder polyethylene glycol (PEG). Different coating compositions, electrode-drying temperatures, and coating parameters …
In this work, positive electrodes based on PAN-carbon fibers were manufactured with powder impregnation (siphon impregnation) technique using a water-based slurry containing lithium iron phosphate (LFP) as the active electrode material and the water-soluble binder polyethylene glycol (PEG). Different coating compositions, electrode-drying temperatures, and …
Resultant LiFePO 4 /Li metal batteries show a considerable rate capability (up to 5C) and a super-long cycling performance (>300 cycles) at 1C at room temperature. In addition, assembled cells with high-loading cathodes …
anchoredby exibleandrobust polypropylene glycol(PPG),and used as a positive electrode material for Li–S batteries. We designed an effective strategy for inserting sulfur between the polymer …
In this study, we designed a battery thermal management system divided into two parts: a shaped phase-change material (PCM) module and a battery module. In the qualitative PCM module, polyethylene ...
Sulfur is one of the promising electrode materials because of a large theoretical capacity (1672 mAh g-1).However, both ionic and electronic conductivities of sulfur are poor and the lithium polysulfide (Li 2 S x) dissolves into the electrolyte solution during charge/discharge process [1].To improve the ionic and electronic conductivities, the composites with carbon, …
Generally, the positive electrode materials could be divided into layered, spinel or olivine materials according to their structure, such as lithium cobalt oxide (LiCoO 2), spinels lithium manganese oxide (LiMn 2 O 4), lithium iron phosphate (LiFePO 4), and mixed metal oxides which comprise of cobalt, nickel, aluminum, and manganese oxides [23]. Currently, low …
This review is aimed at providing a full scenario of advanced electrode materials in high-energy-density Li batteries. The key progress of practical electrode materials in the LIBs in the past 50 years is presented at first. Subsequently, …
The material''s characteristics and its application in the thermal management of lithium-ion batteries are investigated. Polyethylene glycol (PEG) serves as the medium for phase change; expanded graphite (EG) and multi …
Designing a high-capacity positive electrode material is critical for the advancement of lithium-ion batteries. Sulfurized polyethylene glycol (SPEG), containing ca. 61 …
Focusing on the structural design of polymer binders, the mechanism of interaction with electrode materials, and the functional properties of polymer binders, this review summarizes the polymer binders used in the …
Since 1997, lithium iron phosphate (LiFePO 4, LFP) has been used as the positive-electrode material for rechargeable lithium batteries (Padhi, Nanjundaswamy, & Goodenough, 1997).LFP is an excellent candidate for the positive-electrode material of lithium ion batteries because of its low cost, low toxicity, flat charge–discharge potential, excellent cycle …
This review provides an overview of the major developments in the area of positive electrode materials in both Li-ion and Li batteries in the past decade, and particularly in the past few years. Highlighted are concepts in …
In 1979, a group led by Ned A. Godshall, John B. Goodenough, and Koichi Mizushima demonstrated a lithium rechargeable cell with positive and negative electrodes made of lithium cobalt oxide and lithium metal, respectively. The voltage range was found to 4 V in this work. The cathode material is a crucial component of lithium ions in this system and stable …
Sulfur-inserted polymer-anchored edge exfoliated graphite for durable positive electrodes for lithium–sulfur batteries† Nanami Uesugi,a Natsuho Kazahaya,a Koki Yamada,a Seiya Kojo,a Hiroshi Yoshitani,b TakuyaWada,b HirojiFukui,b ShojiNozato,b YuKatayama *a andHiromoriTsutsumia Lithium–sulfur batteries hold promising potential for next-generation …
Request PDF | On Dec 20, 2015, Lorenzo Carbone and others published Polyethylene glycol dimethyl ether (PEGDME)-based electrolyte for lithium metal battery | Find, read and cite all the research ...
Liquid-state materials, while promising for charge carriers shuttling, face challenges with uncontrolled species migration in liquid-state electrodes. 30 Overall, conventional battery materials offer advantages such as species fixation in solid-stage electrode materials and the absence of rigid atomic structure in liquid-electrode materials, but they also suffer from the …
Solvent-free extrusion of a LiFePO 4-based monofilament for three-dimensional printing of a lithium-ion battery positive electrode. Author links open overlay panel Victor Boudeville a b, Sylvie Grugeon a b, Alexis Maurel a b c e, Raynald Lesieur a b, Maroua Louati d, Aurélie Cayla d, Sébastian Ursescu a b, Christine Campagne d, Stéphane Panier a e, Loic …
The LFP positive electrode material provided by the invention is effectively improved in the low-temperature property and the rate capability. ... polyethylene glycol and pitch; Drying condition is to process under 90 ~ 250 ℃ 1 ~ 5 hour; Above-mentioned steps 6) in, described inert atmosphere is one or both in nitrogen and argon gas; Heat-treat condition is to process under …
An environmental friendly waterborne polyurethane (WPU) dispersion was synthesized from polyethylene glycol (PEG), hexamethylene diisocyanate (HDI), diethylene glycol (DEG) and dimethylol propionic acid (DMPA). Solid polymer electrolytes based on WPU and LiTFSI were fabricated via an organic solvent free process. The LiTFSI salts were found to be …
We found that heat-treated mixture of cheap polyethylene glycol and sulfur, sulfurized polyethylene glycol (SPEG) also showed good capacity and relatively good cycle stability as Li-S battery ...
We obtained a new organosulfur composite cathode material through refluxing a mixture of polyethylene glycol and sulfur up to 561 K. The sulfurized polyethylene glycol …
In this study, we validated the above material design strategy by chemically inserting sulfur into the graphene layer, which is anchored by flexible and robust polypropylene glycol (PPG), and used as a positive electrode material for Li–S batteries. We designed an effective strategy for inserting sulfur between the polymer-anchored graphene sheet based on …
Lithium battery using PEO-based solid electrolyte has been widely studied in several literature works, 1, ... soft-polymer membranes using polyethylene glycol dimethyl ether (PEGDME) and LiNO 3 as film forming additive have demonstrated an excellent cycle life in lithium metal cells using both LFP 17 and sulfur cathodes. 18-20 Moreover, PEO-based …
Designing a high-capacity positive electrode material is critical for the advancement of lithium-ion batteries. Sulfurized polyethylene glycol (SPEG), containing ca. 61 wt% of sulfur, is a ...
High volumetric energy density LiFePO4/C cathode materials were synthesized by wet ball milling, spray drying, and carbothermal reduction method using glucose and polyethylene glycol (PEG) as ...
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