Mixing process for improving low-temperature performance of lithium battery
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A low-temperature performance and mixed process technology, applied in the direction of lithium batteries, battery electrodes, non-aqueous electrolyte batteries, etc., can solve problems such as poor work performance, achieve uniform dispersion, and improve the overall overall performance.
Pending Publication Date: 2021-02-05
河北零点新能源科技有限公司
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[0003] However, at present, the low-temperature performance of lithium-ion batteries, especially in low-temperature environments below -30°C, is poor, which inhibits their application in special fields. Factors that affect the low-temperature performance of lithium-ion batteries include electrolyte and electrode material particles. degree and charge transfer resistance etc.
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[0036] As an embodiment of the present invention, the dispersing equipment includes a bottom plate 1, a dispersing casing 2, a dispersing cover 3, a dispersing assembly 4, a rotating assembly 5 and a support leg 6, and the top center of the bottom plate 1 is embedded with the dispersing casing 2, and The top of the dispersing housing 2 is equipped with a dispersing cover 3, and the top of the dispersing cover 3 is embedded with a dispersing assembly 4, and the top side of the bottom plate 1 is provided with a rotating assembly 5, and the rotating assembly 5 is arranged on the side of the dispersing housing 2;
[0037]Dispersion assembly 4 comprises dispersion motor 41, fixed seat 42 and stable housing 43, dispersed motor 41 is installed on the top of stable housing 43 by fixed seat 42, and the output end of dispersed motor 41 runs through fixed seat 42 and stable housing 43 tops Fixedly connected with the top of the rotating shaft 47, the inside of the stabilizing housing 43 is...
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Abstract
The invention discloses a mixing process for improving the low-temperature performance of a lithium battery. The mixing process comprises the following steps of: dispersing large powder in a solution,uniformly distributing the large powder, and dispersing secondary aggregates formed by an electrode active material in production slurry of the lithium battery by using a dispersing assembly of dispersing equipment. The dispersing equipment comprises a bottom plate, a dispersing shell, a dispersing cover, the dispersing assembly, a rotating assembly, supporting legs, a first connecting rod, a second connecting rod, a discharging pipe and an electromagnetic valve, and the dispersing assembly comprises a dispersing motor, a fixing base, a stabilizing shell, a buffer cavity, a spring, a stabilizing sleeve, a rotating shaft, a dispersing grinding head, a dispersing grinding body, an impeller grinding head and an inner ring. The rotating assembly drives slurry on the edge in the dispersing shell to move reversely, the rotating assembly comprises a protective shell, a gear ring, a through hole, a gear, a fixing frame and a rotating motor, then the dispersing assembly achieves uniform dispersing, and the total comprehensive performance of a lithium battery is greatly improved.
Description
technical field [0001] The invention relates to the technical field of lithium batteries, in particular to a mixing process for improving the low-temperature performance of lithium batteries. Background technique [0002] Lithium-ion batteries are widely used due to their advantages of light weight, high specific energy and long life. Low-temperature lithium batteries are made of special materials and processes, suitable for use in sub-zero cold environments, and have excellent discharge capacity and working performance. Excellent, it is generally required to work normally at around -40°C, the discharge capacity should be kept above 80%, and the minimum working temperature can reach -50°C. [0003] However, at present, the low-temperature performance of lithium-ion batteries, especially in low-temperature environments below -30°C, is poor, which inhibits their application in special fields. Factors that affect the low-temperature performance of lithium-ion batteries include ...
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