Safe lithium ion battery electrolyte packaging barrel

Abstract

The invention discloses a safe lithium ion battery electrolyte packaging barrel, belongs to the technical field of lithium ion battery electrolyte packaging, and aims to solve the problems that a packaging barrel is of an integrated structure, lacks a protective damping structure, is inconvenient to move, is low in safety and lacks a pressure buffering structure, and an infusion tube is easily blocked by impurities. Through the arrangement of the outer barrel, the inner barrel, a rubber ring, a damping structure, a protective pad, a storage groove and a moving device, the packaging barrel can be separated, the inner barrel is subjected to damping protection, electrolyte leakage caused by impact is effectively avoided, and the packaging barrel is more convenient to move; through the arrangement of a first pressure limiting valve, a liquid storage cavity, a pressure buffering cavity, a second pressure limiting valve, a filter and a filter head, when the pressure in the liquid storage cavity is too high, part of pressure can be guided into the pressure buffering cavity to achieve pressure buffering, when the pressure in the liquid storage cavity and the pressure buffering cavity is too high, pressure relief is conducted in time, safety is higher, meanwhile, filtering and impurity removal of electrolyte can be achieved, and the service life of the electrolyte is prolonged. And the infusion tube is prevented from being blocked by sediments or floccules when the electrolyte is extracted.

Description

technical field [0001] The invention relates to the technical field of lithium ion battery electrolyte packaging, in particular to a safe lithium ion battery electrolyte packaging barrel. Background technique [0002] Lithium-based batteries are divided into lithium batteries and lithium-ion batteries. Cell phones and laptops use lithium-ion batteries, commonly known as lithium-ion batteries. Batteries generally use materials containing lithium as electrodes, which are the representatives of modern high-performance batteries. The real lithium battery is rarely used in daily electronic products due to its high risk. Lithium-ion battery is a kind of secondary battery (rechargeable battery), which is a negative electrode formed by intercalating lithium ions into carbon (petroleum coke and graphite) (traditional lithium batteries use lithium or lithium alloy as negative electrode). x CoO 2 , also using Li x NiO 2 , and Li x MnO 4 , LiPF for electrolyte 6 + Diethylene ca...

AI Technical Summary

Problems solved by technology

At the same time, most of the main components of the electrolyte - organic solvents have high saturated vapor pressure and are easy to volatilize

[0005] The existing packaging barrels have certain disadvantages in the storage, transportation and use of the electrolyte. The packaging barrel has an integrated structure and lacks a protective shock-absorbing structure. When the barrel body is hit, it is easy to deform and roll over the barrel body. This leads to leakage of the electrolyte, the weight of the packaging barrel is heavy, and it is inconvenient to carry and move during transportation; and the safety is low, lacking a pressure-relief structure, and the internal pressure of the packaging barrel may rise, especially in summer when the temperature is high , The internal pressure of the electrolyte packaging barrel is too large, and electrolyte splashing and leakage may occur. The electrolyte may contain some impurities, sediments or flocs. The electrolyte cannot be filtered when adding and extracting the electrolyte. easy to cause blockage

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