Vacuum liquid injection device for single high-capacity polymer lithium-ion battery
A vacuum liquid injection device and lithium-ion battery technology, which is applied to battery pack components, circuits, electrical components, etc., can solve the problems of large vacuum container, low efficiency of glove box, and increased dehumidification cost, etc., and achieve rapid and uniform infiltration , Occupy less resources and reduce the effect of deterioration
Pending Publication Date: 2017-10-17
海口邦兴新能源科技有限公司
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However, this method can only be used for small-capacity batteries. Dozens or even hundreds of small-capacity batteries can be placed in a vacuum container at the same time, but if it is a large-capacity battery, especially a single large-capacity battery, the volume is very large , if dozens or even hundreds of them are operated at the same time, the vacuum container will be surprisingly large and difficult to achieve
[0005] Moreover, the entire process of conventional liquid injection needs to be operated in a low dew point environment. Although it is operated in a glove box environment, if the battery capacity is large, the efficiency of the glove box will be low, and a large number of glove boxes will be used, and the cost of dehumidification will increase.
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[0041] In order to facilitate the understanding of the present invention, the vacuum liquid injection device will be described more fully below with reference to the relevant drawings. A preferred embodiment of the vacuum injection device is shown in the accompanying drawings. However, the vacuum priming device can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the vacuum liquid injection device more thorough and comprehensive.
[0042] Terms used in various embodiments of the present disclosure are for the purpose of describing specific embodiments only and are not intended to limit the various embodiments of the present disclosure. As used herein, singular forms are intended to include plural forms as well, unless the context clearly dictates otherwise. Unless otherwise defined, all terms (including technical terms and scientific terms) u...
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The invention discloses a vacuum liquid injection device for a single high-capacity polymer lithium-ion battery. The vacuum liquid injection device comprises a closed cavity, a vacuum-pumping component for pumping vacuum in the cavity, and a liquid injection device for injecting a liquid into a to-be-injected battery arranged in the cavity; a first seal head and a second seal head are arranged in the cavity; the first seal head is matched with the second seal head for carrying out heat sealing on a liquid injection opening of the to-be-injected battery. According to the vacuum liquid injection device for the single high-capacity polymer lithium-ion battery, liquid injection and pre-sealing of the battery re completed in a vacuum environment, so that an electrolyte has no chance to be in contact with moisture in air and the deterioration influence of the moisture on the performance of the battery is greatly reduced. Furthermore, liquid injection for the single high-capacity polymer lithium-ion battery is relatively well achieved, the liquid injection efficiency is high and the occupied resources are few.
Description
technical field [0001] The invention relates to the technical field of lithium-ion batteries, in particular to a vacuum liquid injection device for single large-capacity polymer lithium-ion batteries. Background technique [0002] With the development of modern society and the emergence of various mobile electronic devices, the demand for polymer lithium-ion batteries is also increasing year by year. Corresponding to this, a large number of polymer lithium-ion battery manufacturers have sprung up like mushrooms, and the market competition between various polymer lithium-ion battery manufacturers has become increasingly fierce. In order to ensure that the polymer lithium-ion battery has a sufficient price advantage, it is necessary to control the production cost of the battery and improve the production efficiency of the battery. [0003] Polymer lithium-ion batteries generally include a battery case and an electric core and an electrolyte contained in the battery case. The ...
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Login to View More IPC IPC(8): H01M2/36
CPCH01M50/60H01M50/636Y02E60/10
Inventor 程建聪
Owner 海口邦兴新能源科技有限公司