Alumina Evaluation Powder

WAL-A07 Fine Alumina Powder for Cathode Additive Evaluation

Name: WAL-A07 Fine Alumina Powder for Cathode Additive Evaluation
SKU: WAL-A07

High-purity alumina powder for evaluating low-level cathode incorporation, composite-electrode interfaces, and application-specific material effects.

Product Details

Fine alumina for controlled cathode-additive screening

WAL-A07 is a Winigen-designated fine alumina grade positioned for evaluation, without implying a universal or pre-validated electrochemical benefit.

Winigen code: WAL-A07
Material: Alumina, Al2O3
D50: 0.4-0.8 um
Commercial status: Available by RFQ

Purity >= 99.9%
D90 <= 2.0 um
BET surface area 3.5-8.5 m2/g
Trace elements controlled by grade specification

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Qualification note: Any interfacial, thermal, processing, or cycling benefit must be established in the customer's formulation and cell system.

Technical Data

WAL-A07 grade specification

Parameter	Specification	Method
Purity	>= 99.9%	Acceptance requirement; analytical method available by technical review
Particle size	D10 >= 0.1 um; D50 0.4-0.8 um; D90 <= 2.0 um	Laser diffraction
BET	3.5-8.5 m2/g	N2 adsorption BET
pH	7-11	Aqueous slurry
Fe / Na / Ca / Cu	<= 50 / 400 / 200 / 5 ppm	ICP-OES
Foreign-particle count	>200 um: 0 pcs/kg; 25-200 um: <= 60 pcs/kg	Particle-count procedure

Application Fit

How WAL-A07 differs from WAL-P05

Starting use case

WAL-A07 is positioned for low-level cathode incorporation and composite-electrode interface evaluation; WAL-P05 is positioned first for ceramic coating slurry preparation.

Selection basis

The ranges overlap. Select using lot documentation, morphology, impurity profile, agglomeration, and application-specific dispersion testing rather than D50 alone.