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High Heat Boehmite

Boehmite (γ-AlOOH) is the main component of bauxite and an important chemical raw material with a unique crystal structure. It is widely used in catalysts and carriers, papermaking fillers, inorganic flame retardants and other fields. In particular, it can be used as a precursor to prepare aluminum oxide which is widely used in ceramics, electronics, adsorption and catalysis, and has broad application prospects.High heat Boehmite, plate-shaped crystalline particles, prevent fluid intrusion, prevent gas permeation, improve moisture resistance, water resistance, superior aging resistance, and significantly improved flame retardancy.

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Product Introduction

Product introduction

High heat boehmite not only has a microporous adjustment function but also has a plate-like crystal structure. When the current is too large, the material is heated, and the plate-like crystal structure of the boehmite coating material will expand in volume, which will close the lithium battery compartment. Conductive holes on the board, thereby blocking the current and playing an insulating effect.

Product Parameter (Specification)

Item	AM-BL-001	AM-BL-013	AM-BL-003
Purity（%）	99.90%	99.90%	99.90%
D50(μm）	0.5-0.8	1.5	0.3-0.4
Surface Area (㎡/g)	6.60	4.5	39
Ca(ppm)	38.00	38.00	38.00
Na(ppm)	112.00	104	366
Cu(ppm)	<5	<5	<5
Fe(ppm)	56.00	35	63
Si(ppm)	51.00	215	215

Remarks: Can produce the specifications customers provide or give a customize a solution.

Product feature and application

High heat Boehmite can be used for lithium battery separator coating, the advantages are as follows:

Advantage 1: When the current is too large, it can block the current. Using high-purity alumina or boehmite as a coating material and a binder to coat the surface of the PP/PE material can play a role in pore adjustment. Using the special physical and chemical properties of this material can greatly improve the lithium battery. The safety performance of high-power lithium batteries provides the possibility for high-energy safety and safe and reliable charging and discharging.

Advantage 2: High purity alumina or boehmite materials also have very good thermal conductivity. When the battery temperature is too high, this material can conduct heat transfer well, thus solving the problem of poor thermal conductivity of PP/PE materials.

Advantage 3: High purity alumina or boehmite material also has excellent flame retardancy, because high-purity alumina or boehmite material itself is a very good flame retardant, even if the temperature is too high, it reaches zero combustion. At the end of the day, the good flame retardant properties of the material will prevent a wide range of burning or even explosion.