《Solid polymer electrolytes from polyesters with diester sidechains for lithium metal batteries》 was written by Rosenbach, Dominic; Krimalowski, Alexander; Erabhoina, Harimohan; Thelakkat, Mukundan. Application In Synthesis of Methyl 2-chloro-2-oxoacetateThis research focused ontitanium oxide polyester solid polymer electrolyte lithium metal battery. The article conveys some information:
A series of polymethacrylates and polyacrylates carrying diester side chain moieties with varying alkyl spacer lengths are designed, synthesized, and evaluated as solid polymer electrolytes (SPEs) in lithium metal batteries (LMBs). These amorphous polymers with glass transition temperatures in the range of -58 to +32 °C are tested as SPEs in combination with LiTFSI or LiFSI. At an optimum salt concentration of 25 wt%, ionic conductivities up to 10-4 S cm-1 at 70 °C are achieved. These SPEs reveal high lithium transport numbers (0.5-0.7) and high electrochem. stability (5.4 V vs. Li/Li+) as determined by LSV. In combination with an ultrathin polyimide membrane and 10 wt% TiO2 nanoparticles, dendrite-free plating/stripping at 40 and 70 °C is realized in sym. Li|SPE|Li cells. Detailed extended distribution of relaxation times (eDRT) anal. of impedance measurements is employed for understanding the diverse cell processes. In solvent-free LMBs comprising a polyimide membrane soaked with the nanocomposite polyester electrolyte, lithium metal foil as the anode and an optimized LiFePO4 cathode, a very high initial specific discharge capacity of 152 mA h g- 1 (at 0.2C, 70 °C), excellent capacity retention of 94% after 100 cycles (at 1C, 70 °C) and negligible capacity fading even at 2C (96% retention after 300 cycles) are demonstrated. These novel polyester-based SPEs exhibit high cycling stability at 40 °C, making them highly attractive for room temperature applications. In the experimental materials used by the author, we found Methyl 2-chloro-2-oxoacetate(cas: 5781-53-3Application In Synthesis of Methyl 2-chloro-2-oxoacetate)
Methyl 2-chloro-2-oxoacetate(cas: 5781-53-3) belongs to acyl chlorides. Lacking the ability to form hydrogen bonds, acyl chlorides have lower boiling and melting points than similar carboxylic acids. For example, acetic acid boils at 118 °C, whereas acetyl chloride boils at 51 °C. Like most carbonyl compounds, infrared spectroscopy reveals a band near 1750 cm−1.Application In Synthesis of Methyl 2-chloro-2-oxoacetate
Referemce:
Chloride – Wikipedia,
Chlorides – an overview | ScienceDirect Topics