Process for production of ultrapure bis (chlorosulfonyl) imides

• Main Author: SCHMIDT, EUGEN
• Format: Patent
• Language: Chinese; English
• Published: 30.04.2024
• Subjects: ACYCLIC OR CARBOCYCLIC COMPOUNDS; BASIC ELECTRIC ELEMENTS; CHEMISTRY; COMPOUNDS THEREOF; ELECTRICITY; INORGANIC CHEMISTRY; METALLURGY; NON-METALLIC ELEMENTS; ORGANIC CHEMISTRY; PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY

The present invention relates to a process for the manufacture of ultra pure (UP) grade bis (chlorosulfonyl) imide (HCSI) having a purity of at least 99.0 mol.% with respect to the total number of moles of HCS. Furthermore, the invention relates to a UP-grade HSCI obtainable from this process, and to the use of this UP-grade HSCI for the preparation of lithium bis (fluorosulfonyl) imide (LiFSI). The invention also relates to a method for producing LiFSI, comprising the preparation of UP grade HSCI according to the method. The present invention relates to a composition comprising LiFSI having a purity of at least 99.99 mol.% with respect to the total number of moles of LiFSI in the composition, and to the use of a composition comprising the LiFSI obtainable from the present process in a lithium ion secondary battery. 本发明涉及一种用于制造超纯(UP)级双(氯磺酰基)酰亚胺(HCSI)的方法，该HCSI相对于HCSI的总摩尔数具有至少99.0mol.％的纯度。另外，本发明涉及一种从该方法可获得的UP级HCSI，并且涉及该UP级HCSI用于制备双(氟磺酰基)酰亚胺锂(LiFSI)的用途。本发明还涉及一种用于制造LiFSI的方法，该方法包括根据本方法制备UP级HCSI。本发明涉及一种包含LiFSI的组合物，