博文

目前显示的是 六月, 2019的博文

Imidodisulfuryl fluoride lithium salt (LiFSI)/ cas: 171611-11-3

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 Original :  https://www.shokubai.co.jp/en/products/environment/lifsi.html The use of LiFSI as an additive improves cycle life, charge/discharge performance, low-temperature performance and cell bulging caused at high tempreture. Applications Additive for lithium ion secondary battery Electrolyte for lithium ion secondary battery Electrolyte for lithium ion primary battery Antistatic agent Physical properties LiFSI LiTFSI LiPF6 Molecular Weight (g/mol) 187 287 152 Ionic Conductivity (mS/cm) 9.8 6.8 8.0 Thermal Decomposition Temperature (ºC) 308 337 154 Molecular Radius (Å) 3.5 4.7 2.7 Antistatic effects LiFSI gives better antistatic effects than other lithium salts in broad range of concentrations. 【Evaluation Conditions】 LiFSI is added to PEG-containing acrylic-based adhesives. Surface resistance is measured under a dry condition at 23ºC. Cycle life LiFSI-containing electrolyte improves the cycle life of the battery. 【Evaluation Conditions】 ...

LIPO2F2 XRD & FTIR

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LIPO2F2  XRD between Japan and ChemFish 's  Photo 1: Japan's  Photo 2: ChemFish  LIPO2F2   FTIR   between Japan and ChemFish 's  Photo 1: Japan's  Photo 2: ChemFish 

LiPO2F2 improving the storage performance and high temperature of the battery

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Lithium difluorophosphate has a molecular formula of LiPO2F2 and a molecular weight of 107.9. It is a white crystalline powder, which is easy to absorb moisture and has good stability. The main function of adding to the electrolyte of the lithium ion battery is to form a dense and thermally stable protective film on the surface of the electrode, thereby inhibiting the electrolyte from decomposing due to contact with the positive electrode active material and the negative electrode active material, thereby improving the storage performance and high temperature of the battery. Cycle performance, etc. Studies have shown that during the first charging process, lithium difluorophosphate can decompose before the carbonate solvent, and participate in the formation of a layer of SEI film with high temperature stability and favorable for Li+ insertion and deintercalation. The battery with 1% lithium difluorophosphate was stored at a high temperature of 60 ° C for 14 days, the capacity retentio...

lifsi in tons production .

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ChEMFISH continues provide photoinitiator 2959  CAS:106797-53-9