Full-automatic production process of lithium iron phosphate and devices thereof

Abstract

The invention discloses a full-automatic production process of lithium iron phosphate and the devices thereof, and belongs to the production technology field of positive materials of lithium-ion batteries. The full-automatic production process comprises the following steps of burdening, grinding, drying, roasting, crushing, packaging and the like, and is carried out in the full-automatic production process devices. The whole production process in the invention is controlled by the PLC (programmable logic controller) and is full-automatic and continuous, thus avoiding the manual operation, improving the consistency and stability of the products greatly, and enhancing the quality and work efficiency of the products; through adopting the totally enclosed type devices, the transmissions of materials among the devices are all completed in a sealed condition, and through adopting the protection from the inert atmosphere, the pollution from outside such as dust and the like is efficiently prevented, the loss and deterioration of materials in the whole process are reduced, and the quality of the products is improved; and the production method is low in energy consumption, high in capacity and continuous, reduces the production cost, and is suitable for industrial production.

Description

technical field [0001] The invention belongs to the technical field of production of positive electrode materials for lithium ion batteries, and in particular relates to a fully automatic production process and equipment for lithium iron phosphate. Background technique [0002] Lithium iron phosphate is an emerging material that has triggered a revolution in the lithium battery industry. Due to its own advantages, lithium iron phosphate batteries are widely used in various fields such as hybrid vehicles, electric vehicles, electric tools, electric bicycles, electric mopeds, and power generation and energy storage devices. . Hybrid electric vehicles (HEV) will be the main development direction of new energy vehicles in the next few years. With the continuous increase in the production of hybrid electric vehicles and the increase in the share of hybrid electric vehicles, the market size of lithium iron phosphate batteries will grow rapidly. At present, the synthesis method of...

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Problems solved by technology

However, at present, existing manufacturers all adopt discontinuous production methods, and a large number of manual operations are used between processes. First, the stability between product batches is not good and the performance is unstable; second, the production cost is increased, and the production efficiency is low. ; The third is that the material flow is not in a closed condition, and the dust pollution is serious; the fourth is that the energy consumption is large, which is not conducive to energy saving and emission reduction

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