A kind of equipment for preparing lithium difluorophosphate

Abstract

The invention discloses a device for preparing lithium difluorophosphate, comprising a body, a top of the body is centrally installed with a first motor, the body is a hollow cylindrical structure, a discharge hopper is arranged inside the body, and the discharge hopper passes through the body. The inner cavity of the body is divided into a reaction chamber at the upper end, a precipitation chamber at the middle and a drying chamber at the lower end, wherein the tops of both sides of the body are installed with feed pipes that communicate with the reaction chamber, and the top of the body is located at the first motor. A gas-filled pipe is installed on one side, and a stirring assembly connected with the first motor is installed inside the reaction chamber. The equipment for preparing lithium difluorophosphate combines the equipment after different steps in the body, which can reduce the overall occupied space area, and at the same time, in the preparation process, no transfer operation is required, so that the overall operation is simpler and the processing is also easier. It is more convenient, saves manpower, improves processing efficiency, and avoids quality problems caused by the transfer process.

Description

technical field [0001] The invention belongs to the technical field of preparation of lithium difluorophosphate, in particular to a device for preparing lithium difluorophosphate. Background technique [0002] In recent years, with the promotion and application of lithium-ion batteries, the market has put forward higher and higher requirements for the comprehensive performance of lithium-ion batteries, such as high and low temperature performance of batteries, battery capacity, cycle performance and so on. Therefore, various electrolyte additives with excellent performance are gradually developed and used. Lithium difluorophosphate as an additive for lithium ion batteries has attracted widespread attention because it can significantly improve the low temperature characteristics and cycle stability of lithium ion secondary batteries. [0003] At present, in the process of preparing lithium difluorophosphate, the equipment used is applied to each step, so that the equipment n...

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Problems solved by technology

[0003] At present, in the process of preparing lithium difluorophosphate, the equipment used is applied to each step, so that the equipment needs to be operated separately during the operation process, which is troublesome to operate and occupies a large space, which is not conducive to improving overall production efficiency

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