Liquid injection device
A technology of liquid injection device and liquid injection tube, which is applied in the direction of electrical components, non-aqueous electrolyte batteries, circuits, etc., can solve the problems of wasting electrolyte, polluting the working environment, etc., and achieve the effect of reducing resource waste and keeping clean and tidy
Pending Publication Date: 2021-01-22
JIANGSU KATOP AUTOMATION CO LTD
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Problems solved by technology
[0003] After the existing lithium battery electrolyte injection device fills the battery, the excess residual liquid in the liquid injection nozzle will drop to the outside of the liquid injection device under its own gravity, which not only wastes the electrolyte but also pollutes the working environment
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[0025] The idea, specific structure and technical effects of the present invention will be clearly and completely described below in conjunction with the embodiments and accompanying drawings, so as to fully understand the purpose, features and effects of the present invention. Apparently, the described embodiments are only some of the embodiments of the present invention, rather than all of them. Based on the embodiments of the present invention, other embodiments obtained by those skilled in the art without creative efforts belong to The protection scope of the present invention. In addition, all the connection / connection relationships involved in the patent do not simply refer to the direct connection of components, but mean that a better connection structure can be formed by adding or reducing connection accessories according to specific implementation conditions. The various technical features in the invention can be combined interactively on the premise of not conflictin...
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The invention relates to the technical field of battery production devices, in particular to a liquid injection device, which comprises a bracket, a liquid injection cup, a three-way joint, a liquid injection nozzle, a negative pressure mechanism, a first liquid injection pipe, a second liquid injection pipe and a third liquid injection pipe; the liquid injection cup is arranged on the bracket andused for storing electrolyte to be injected into a battery, one end of the first liquid injection pipe is connected with the liquid injection cup, one end of the second liquid injection pipe is connected with the liquid injection nozzle, one end of the third liquid injection pipe is connected with the negative pressure mechanism, and the first liquid injection pipe, the second liquid injection pipe and the third liquid injection pipe are connected through the three-way joint. And valves are respectively arranged on the first liquid injection pipe, the second liquid injection pipe and the third liquid injection pipe. The liquid injection device has the function of collecting redundant residual liquid in the liquid injection nozzle.
Description
technical field [0001] The invention relates to the technical field of battery production devices, in particular to a liquid injection device. Background technique [0002] Lithium battery electrolyte is the carrier of ion transport in the battery. Generally composed of lithium salt and organic solvent. The electrolyte plays the role of conducting ions between the positive and negative electrodes of the lithium battery, which is the guarantee for the high voltage and high specific energy of the lithium ion battery. The electrolyte is generally prepared from high-purity organic solvents, electrolyte lithium salts, necessary additives and other raw materials under certain conditions and in a certain proportion. In the actual production process, the electrolyte needs to be injected into the lithium battery. [0003] After the existing lithium battery electrolyte injection device fills the battery, the excess liquid in the injection nozzle will drop to the outside of the injec...
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IPC IPC(8): H01M50/609H01M10/052
CPCH01M10/052Y02E60/10
Inventor 巩毅涛关博家
Owner JIANGSU KATOP AUTOMATION CO LTD