WO/2021/068796 NEGATIVE ELECTRODE MATERIAL, PREPARATION METHOD
Disclosed are a negative electrode material, a preparation method therefor and an application thereof, and a lithium-ion battery. mixing a silicon source and a carbon
Nano-sized transition-metal oxides as negative-electrode materials
Idota, Y. et al. Nonaqueous secondary battery. US Patent No. 5,478,671 (1995). Nature - Nano-sized transition-metal oxides as negative-electrode materials for lithium-ion
Sustainable and efficient recycling strategies for spent lithium iron
(a) Flow chart of SLFPBs treated by Na 2 CO 3 assisted carbothermal reduction roasting-magnetic separation process [48], (b) Process diagram and XRD pattern of SLFPBs electrode
CN112629247B
The roasting furnace and the roasting method for the lithium battery cathode material have the advantages of simple process and ingenious design; but also is beneficial to energy
Prepared Fe3O4/rSCCO-700 by ball milling-roasting method from
5 天之前· In order to study the migration dynamics of electrode materials prepared at different temperatures, the Warburg impedance of electrodes in the low frequency region in Fig. 7 (a)
Lead-carbon battery negative electrodes: Mechanism and materials
Lead-Carbon Battery Negative Electrodes: Mechanism and Materials WenLi Zhang,1,2,* Jian Yin,2 Husam N. Alshareef,2 and HaiBo Lin,3,* XueQing Qiu1 1 School of Chemical
Effect of roasting pretreatment on micro-nanobubble-assisted
The muffle furnace flotation performance of electrode materials was significantly influenced by roasting temperature and roasting time. By roasting pretreatment of spent LIBs,
Negative electrode active material for rechargeable lithium battery
摘要： The present invention relates to a negative electrode active material for a rechargeable lithium battery, a method for preparing the same, and a rechargeable lithium
Preparation method for lithium battery negative-electrode slurry
The method for preparing a negative electrode slurry for a lithium battery according to claim 1, wherein in the step A, the active material of the negative electrode is artificial graphite, natural
Method of preparing negative electrode material of battery, lithium
Provided in the present invention is a method of preparing a negative electrode material of a battery, the method comprising the following steps: a) dry mixing, without adding any...
CN109860753A
The present invention provides a kind of methods for roasting waste and old lithium ion battery positive and negative pole material, are related to battery technology field.The method for
Silicon-carbon negative electrode material of lithium ion battery
The invention discloses a silicon-carbon negative electrode material of a lithium ion battery and a preparation method thereof, and solves the technological problem of improving the...
CN112759377A
A sagger for roasting a lithium battery positive electrode material and a preparation method thereof belong to the technical field of saggers for roasting lithium battery positive electrode
Optimization of resource recovery technologies in the
The rise of electric vehicles has led to a surge in decommissioned lithium batteries, exacerbated by the short lifespan of mobile devices, resulting in frequent battery
Method for preparing lithium ion battery negative electrode slurry
The present invention relates to a method for preparing a lithium ion battery negative electrode slurry, the preparation method comprising the following steps: S1: mixing active material and a
Electrode materials for lithium-ion batteries
The high capacity (3860 mA h g −1 or 2061 mA h cm −3) and lower potential of reduction of −3.04 V vs primary reference electrode (standard hydrogen electrode: SHE) make
Research on the recycling of waste lithium battery electrode materials
The molten salt assisted roasting method is capable of recovering the negative electrode materials from lithium batteries. In our previous study [144], ammonium sulfate was
CN101519726B
A method for directly roasting and treating waste lithium ion batteries and recovering valuable metals, in particular to the recovery and treatment of the waste lithium ion batteries taking
Microwave-Assisted Reduction Behaviors of Spent Cathode
The route of carbothermal reduction followed by magnetic separation has been proven to be an efficient process to recover valuable metals from spent LIBs. This paper
Application of Roasting Flotation Technology to Enrich
Roasting could thoroughly remove the organic outer layer coated on the surface of electrode-active materials, which improved the flotation enrichment efficiency of valuable metals in the mixed electrode powder of spent LiFePO 4 batteries.
WO/2023/227032 METHOD FOR PREPARING BATTERY
Disclosed is a method for preparing battery-grade graphite by using mixed waste of positive and negative electrode materials of a failed lithium-ion battery as a raw
Mechanism and process study of spent lithium iron phosphate
In this study, we determined the oxidation roasting characteristics of spent LiFePO 4 battery electrode materials and applied the iso-conversion rate method and integral master plot
CN115597377A
The invention discloses a lithium battery anode material roasting system and a roasting method, wherein the roasting system comprises a vacuum chamber, a vacuumizing system, a process
WO/2021/068796 NEGATIVE ELECTRODE MATERIAL,
The preparation method therefor comprises: (1) mixing a silicon source and a carbon source, and then roasting same; (2) mixing a roasted product obtained in step (1) with
Method of preparing negative electrode material of battery, lithium
Provided in the present invention is a method of preparing a negative electrode material of a battery, the method comprising the following steps: a) dry mixing, without adding any solvent,
Molybdenum ditelluride as potential negative electrode material
Graphite, which is a popular negative electrode material of lithium-ion batteries, 1T′- MoTe 2 layered material has shown encouraging electrochemical data, providing a
Thermal battery anode material and preparation method thereof
The research of the anode material of the thermal battery mainly comprises a disulfide system and a halide system, and FeS is common 2,CoS 2 And Fe x Co 1-x S 2 The composite anode
Mechanism and process study of spent lithium iron phosphate
The battery cathode material contains lithium, iron, graphite, polyvinylidene fluoride (PVDF), A medium-temperature selective roasting pretreatment method was proposed, and its roasting
Drying of lithium-ion battery negative electrode coating: Estimation
Drying of the coated slurry using N-Methyl-2-Pyrrolidone as the solvent during the fabrication process of the negative electrode of a lithium-ion battery was studied in this work.
Influence Mechanism of Phase Change on Leaching of Metal
In this work, a clean selective leaching method for Li, Ni, Co and Mn elements from ternary lithium-ion battery waste was proposed. The mixed positive and negative
Advances in Structure and Property Optimizations of Battery Electrode
As the electrochemical reactions in electrode materials are dynamic, numerous in situ characterization methods have been developed to investigate the structural evolution of
Sequential separation of battery electrode materials and metal
The recovered materials retain their crystal structure and morphology, and there are no signs of aluminum corrosion or residues on the metal foils. The sequential separation
Microwave-Assisted Reduction Behaviors of Spent Cathode Material
The negative electrode material is separated from the battery separator and packaged separately. Methods. The mixture of spent cathode material and 20% biochar was
Recovery of graphite from spent lithium-ion batteries and its
Through pyrolysis modification, the hydrophilicity and hydrophobicity of the positive electrode material were enhanced, and the flotation efficiency was improved. Recently,
From Silica Leachate of Laterite Nickel Ore to Silicate Cathode
Keywords Li 2 MnSiO 4 · Laterite nickel ore · T wo stage roasting method · Lithium-ion battery. the charge and discharge quantity of the negative electrode raw
(PDF) Study on Preparation of Cathode Material of Lithium Iron
The cathode material of carbon-coated lithium iron phosphate (LiFePO4/C) lithium-ion battery was synthesized by a self-winding thermal method. The material was
Research on the recycling of waste lithium battery electrode materials
Under the condition of a 3:1 mass ratio of ammonium sulfate to lithium battery electrode mixed material, roasting temperature of 450 °C, roasting time of 30 min, liquid-solid ratio of 20:1,
Peanut-shell derived hard carbon as potential negative electrode
Sulphur-free hard carbon from peanut shells has been successfully synthesized. Pre-treatment of potassium hydroxide (KOH) plays a crucial role in the enhancement of
Recycling of spent lithium iron phosphate battery cathode materials
Compared with negative electrode lithium replenishment, which has low safety from lithium metal and high process requirements, positive electrode lithium replenishment
6 FAQs about [Battery negative electrode material roasting method]
How to roast lithium ion batteries?
Conclusion In the roasting process, the electrode material of discarded lithium-ion batteries was mixed with (NH 4) 2 SO 4 in a mass ratio of 3:1. The roasting is conducted at a temperature of 450 °C for 30 min, leading to the rapid extraction of 99.99% of Li, Co, Ni, and Mn.
Can low-temperature roasting and leaching be used to treat electrode waste?
Recently, the combined method of low-temperature roasting and leaching has gained attention as a research focus for treating electrode waste materials. This includes methods like chloride roasting-water leaching, sulfuric acid or ammonium sulfate roasting-water leaching, and reduction roasting-step leaching.
Which control reaction dominated the process of roasting discarded lithium-ion battery electrode materials?
This suggests that in the process of roasting discarded lithium-ion battery electrode materials with (NH 4) 2 SO 4, chemical control reactions dominated in the first 10 min, while diffusion control reactions dominated in the subsequent 20 min. Fig. 7.
What is the roasting process of mixed electrode powder?
The roasting process of the mixed electrode powder was carried out in a muffle furnace in an air atmosphere. About 10 g of the mixed electrode powder was put into a corundum boat and transferred to the muffle furnace for roasting at a heating rate of 10 °C/min.
Does roasting time affect the properties of electrode-active materials?
Compared to the roasting temperature, the roasting time had an equally important effect on the properties of electrode-active materials. When roasting at 500 °C, the PVDF wrapped on the surface of electrode-active materials began to decompose, while the graphite did not burn.
Does roasting affect surface morphology of mixed electrode powder?
Hence, roasting was applied to remove the PVDF layer for improving the following flotation separation. The surface properties of the mixed electrode powder changed via roasting. As can be seen from Figures 4 and 5, roasting has a great influence on the surface morphology of the mixed electrode powder.
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