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Inert atmosphere cooling device for baking battery material and application method thereof

A battery material, inert atmosphere technology, applied in electrical components, generators/motors, processing discharged materials, etc., can solve problems affecting the normal process and cycle of battery material preparation, inability to obtain fine crystallinity, and easy electrode materials. Oxidation by air, etc., to achieve the effect of improving final performance, high subcooling, compact and reasonable structure

Active Publication Date: 2021-10-15
CENT SOUTH UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

After the former takes out the electrode material, the high-temperature electrode material placed in the air is easily oxidized by the air, which makes it difficult for the obtained electrode material to meet the requirements; the latter is naturally cooled in an argon atmosphere, but the cooling cycle is too long, which affects the battery material. The normal process and cycle of preparation will also cause too much waste of argon resources, and products with fine grains and high crystallinity cannot be obtained, and a large amount of heat converted from electric energy in the tube furnace will be directly dissipated, which is not conducive to energy consumption. maximize the use of

Method used

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  • Inert atmosphere cooling device for baking battery material and application method thereof
  • Inert atmosphere cooling device for baking battery material and application method thereof
  • Inert atmosphere cooling device for baking battery material and application method thereof

Examples

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Effect test

Embodiment 1

[0053] see figure 1 , which shows a battery material roasting cooling system under an inert atmosphere, the roasting cooling system includes a battery material roasting device and a battery material inert atmosphere cooling device.

[0054] The battery material roasting device includes a tube furnace 69 for roasting the battery material 108, which has an internal roasting area 68 inside. Specifically, the tube furnace 69 is an open tube furnace with dual temperature zones.

[0055] The battery material inert atmosphere cooling device is mainly composed of three parts: a radiation-convection comprehensive cooling and heat recovery device, a semiconductor module thermoelectric power generation device, and an argon preheating and recycling device.

[0056] Radiation-convection comprehensive cooling and heat recovery device is mainly composed of vortex tube cold end 11, cooling chamber 10, water cooling cooling interlayer 15, small cooling water pump 20, heat transfer oil chamber ...

Embodiment 2

[0100] This embodiment is basically the same as Embodiment 1, the main difference is: as Figure 8As shown, in the present embodiment, the semiconductor thermoelectric power generation module 35 includes: two n-type semiconductors 91 and two p-type semiconductors 92, and the n-type semiconductors 91 and p-type semiconductors 92 are arranged alternately (that is, corresponding to the first one from left to right in the figure). One and the third are p-type semiconductors 92, the second and the fourth are n-type semiconductors 91), and adjacent n-type semiconductors 91 and p-type semiconductors 92 are arranged at intervals; two semiconductor hot end metal plates 90 and three A semiconductor cold-end metal plate 102, a semiconductor hot-end metal plate 90 and a semiconductor cold-end metal plate 102 are respectively located on both sides of the n-type semiconductor 91 and the p-type semiconductor 92, and the adjacent n-type semiconductor 91 and the p-type semiconductor 92 form a s...

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Abstract

The invention discloses an inert atmosphere cooling device for baked battery materials, which comprises an inert gas bottle, a vortex tube, an inert atmosphere cooling box, an inert gas storage bag, a semiconductor hot-end heat-conducting ceramic plate and a semiconductor thermoelectric power generation module. The invention also discloses an application method of the above-mentioned inert atmosphere cooling device for roasting battery materials, which performs radiation-convection comprehensive heat exchange on the battery materials placed in the cooling chamber, utilizes the heat-conducting ceramic plate at the hot end of the semiconductor to absorb heat and utilizes the temperature difference of the semiconductor The power generation module generates power to provide power for fluid delivery in the roasting cooling system. The invention can effectively solve the problem that the natural cooling of the battery material will affect its final performance, so that the baked battery material can be rapidly cooled by radiation-convection comprehensive heat exchange in an inert atmosphere to improve the performance of the battery material, and can make full use of the waste heat.

Description

technical field [0001] The invention relates to the technical field of battery material preparation devices, in particular to an inert atmosphere cooling device for roasting battery materials and an application method thereof. Background technique [0002] Baking is usually required in the preparation of battery materials, and the morphology, crystal structure, and electrochemical properties of sintered products often have a great relationship with the sintering system and cooling system. Generally, rapid cooling can increase the degree of supercooling to increase the crystallinity of the material, refine the grains, and make the material have better electrochemical performance. Patent CN109148879A discloses a method for synthesizing lithium-rich manganese-based cathode materials by quenching with liquid nitrogen, which shows that increasing the cooling rate can improve the electrochemical performance of the material. [0003] After the battery material is roasted, due to t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F27D15/02F25B9/04F27D17/00H01L35/28H02N11/00
CPCF27D15/02F25B9/04F27D17/004H02N11/002H10N10/10Y02P10/25
Inventor 吴飞翔杨凌志薛智宸于环宇胡航
Owner CENT SOUTH UNIV
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