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For lithium ion batteries, the cathode materials that can be used should meet the characteristics of large reversible capacity, high potential and stability, non-toxic and low production cost. At present, lithium iron phosphate is the most common cathode material for lithium ion batteries. However, LiFePO4 has poor electrical conductivity and low lithium ion mobility. If LiFePO4 material is combin...
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Graphene Oxide is a two-dimensional planar nanomaterial composed of carbon atoms with a hexagonal honeycomb lattice，the c-c bond length is 0.141nm, the theoretical density is about 0.77mg/m2, and the thickness is only about the diameter of a carbon atom. Carbon atoms participate in hybridization in the way of sp2, and electrons can smoothly conduct between layers, so graphene conducts electricity ...
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The main components of lithium ion battery include cathode, anode, electrolyte, membrane, etc. The storage and release of lithium ion energy is realized in the form of REDOX reaction of electrode materials, and the cathode active material is the most critical core material of lithium ion battery. Professor GOODENOUGH, the father of lithium battery, has made a great contribution...
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Introduction: Polyvinylidene fluoride binder(PVDF) is currently the most commonly used oil binder in the lithium ion battery industry. It is a non-polar chain polymer binder. It is characterized by strong oxidation resistance, good thermal stability and easy dispersion. N-methylpyrrolidone (NMP) is required as a solvent. This solvent has a high volatilization temperature, has a certain environment...
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The lithium-rich manganese-based (xLi[Li1/3-Mn2/3]O2; (1–x) LiMO2, M is a transition metal 0≤x≤1, and the structure is similar to LiCoO2) has a high discharge specific capacity. It is about twice the actual capacity of the cathode material currently used, and is therefore widely studied for lithium battery materials. In addition, since the material contains a large amount of Mn element, it is more...
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As the core product of replacing the fuel - powered vehicle, new energy vehicle has been accepted by more and more users. Similarly, as one of the components of new energy vehicles, power battery has a more and more promising market. As a high-tech enterprise in the field of lithium-ion battery and supercapacitor, TOB has always been committed to the development of the fuel cells, TOB New Energy c...
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There are many kinds of cathode materials for lithium ion batteries. According to the difference of cathode materials, they can be divided into LiNiMnCoO2 NMC(NCM) cathode material, LiNiCoAlO2 NCA cathode material, LiFePO4 LFP cathode, LiCoO2 LCO cathode, LiMn2O4 LMO cathode and Li4Ti5O12 LTO material. Ternary lithium battery refers to the lithium battery that uses three transition metal oxides ni...
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Graphene anode material has the potential to replace graphite material as a new cathode material for lithium ion batteries due to its unique two-dimensional structure, excellent electron transport capacity and super large specific surface area. The lithium storage mechanism of graphene anode material is similar to that of other carbonaceous materials. During charging, lithium ions come out from th...
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Lithium phosphatehas good electrochemical performance and low resistance. This is achieved through nanoscale phosphate cathode materials. The main advantages are high rated current and long cycle life; Good thermal stability, enhanced security and tolerance to abuse. If kept at a high voltage for a long period of time, lithium phosphate is more tolerant to full charging conditions and is less stre...
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Currently, achieving high capacity energy density and power density has become the focus of expanding Lithium batteries applications to large-scale energy storage systems. Therefore, high load level and harsh calendering process are needed in the electrode manufacturing process to meet the requirements of high volume energy density of batteries. Although the electrode fabrication process is highly...
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The first is to confirm and bake the battery material. Generally, the battery conductive agent needs to be baked at 120℃ for 8 hours. The PVDF powder should be baked at 80℃ for 8 hours. The cathode active material (LFP, NCM, etc.) depends on the state and process of incoming material whether it needs to be baked and dried. After drying, (wet process) Mixing the PVDF powder and NMP solvent to make ...
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The anode of lithium battery is composed of anode active materials, conductive agent, battery binder and dispersant. The conventional anode electrode system is a water mixing process (the solvent is deionized water), so the incoming material does not require drying. This process requires: Conductivity of deionized water ≤1us/cm. Workshop temperature ≤40℃, Humidity :≤25%RH. After confirmation of th...
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The packaging method of lithium battery depends on the shell material it uses. In general, only lithium pouch batteries will use aluminum laminate film and heat sealing. The metal cans batteries are usually sealed by laser welding. Aluminum laminate film generally has three layers, respectively nylon layer, Al layer, PP layer. Nylon layer is to ensure the appearance of aluminum laminate film,...
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The theoretical basis and battery structure of sodium ion battery (Na-ion batteries) and lithium ion battery are very similar. Liquid sodium-ion batteries (like solid-state lithium-ion batteries, are also being investigated) are composed of positive electrode, negative electrode, current collector, electrolyte, and battery separator. Among them, electrolyte and separator basically follow the...
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(1) Layered metal oxides Layered metal oxides are favored by researchers because of their simple manufacturing method and high specific capacity. Similar to lithium batteries, layered oxide cathode materials are also promising cathode materials for commercial use in sodium ion batteries. (2) Prussian blue Prussian blue frame structure allows sodium ions to be embedded and released quickly, with ex...
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Materials Material selection is the first factor affecting the performance of lithium-ion batteries. If you choose the battery material with poor cycle performance, even if the process is reasonable and the production is perfect, the cycle of the cell can not be guaranteed. And with better materials, the cycle performance may not be too bad even if there are some problems in the subsequent product...
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Prussian Blue Cathode Materials for Aqueous Sodium-ion Batteries: Preparation and Electrochemical Performance Author：LI Yong. Prussian Blue Cathode Materials for Aqueous Sodium-ion Batteries: Preparation and Electrochemical Performance. Journal of Inorganic Materials[J], 2019, 34(4): 365-372 doi:10.15541/jim20180272 TOB New Energy can provide a full set of battery material and batte...
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Enhanced Lithium Storage Stability Mechanism of Ultra-high Nickel LiNi0.91Co0.06Al0.03O2@Ca3(PO4)2 Cathode Materials Author：ZHU Hezhen, WANG Xuanpeng, HAN Kang, YANG Chen, WAN Ruizhe, WU Liming, MAI Liqiang. Enhanced Lithium Storage Stability Mechanism of Ultra-high Nickel LiNi0.91Co0.06Al0.03O2@Ca3(PO4)2 Cathode Materials. Journal of Inorganic Materials, 2022, 37(9): 1030-1036...
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Cobalt-doped Hollow Carbon Framework as Sulfur Host for the Cathode of Lithium Sulfur Battery Author: JIN Gaoyao, HE Haichuan, WU Jie, ZHANG Mengyuan, LI Yajuan, LIU Younian. Cobalt-doped Hollow Carbon Framework as Sulfur Host for the Cathode of Lithium Sulfur Battery. Journal of Inorganic Materials[J], 2021, 36(2): 203-209 DOI:10.15541/jim20200161 TOB New Energy provides various battery...
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High-quality Fe4[Fe(CN)6]3 Nanocubes Preparation: As Cathode Material for Aqueous Sodium-ion Battery WANG Wu-Lian. High-quality Fe4[Fe(CN)6]3 Nanocubes: Synthesis and Electrochemical Performance as Cathode Material for Aqueous Sodium-ion Battery. Journal of Inorganic Materials[J], 2019, 34(12): 1301-1308 doi:10.15541/jim20190076 High-quality Fe4[Fe(CN)6]3 (HQ-FeHCF) nanocu...
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