Sulfur carbon composite cathode material (sulfur content 75%)

Name: Dual-ended marker pen (Zebra)
Brand: Canrd
Price: 16.91 USD
Availability: InStock

$36.25

Model：

MA-EN-CA-0065

item_No

Specifications

Price

MA-EN-CA-006501

10g

$36.25

Details

Overview

Specifications

Details

This product is a sulfur-carbon composite cathode material with a sulfur content of 75%, specifically developed for lithium-sulfur battery research. It exhibits non-hygroscopic characteristics and offers a nominal specific capacity of 850 mAh/g. Designed for routine laboratory handling, the material is compatible with a standard slurry formulation using Ketjen black and HSV900 at a 91:3:6 ratio, with process temperature control recommended to avoid heating. Carbon-coated aluminum foil is suggested as the current collector, and electrode drying should be performed at 50–60 °C. For electrochemical testing, KLD-series electrolytes (e.g., S46, S17, or S03) and a voltage range of 1.8–2.8 V are advised. Storage requires vacuum sealing to maintain stability. This material serves as a reliable experimental platform for advancing lithium-sulfur cathode performance.

The material needs to be vacuum sealed for storage

The drying temperature should not be too high, 50-60 ℃ is suitable

The electrolyte used during testing is lithium sulfur electrolyte KLD-S46

Baking conditions for electrode: Bake at 50 ℃ for 4 hours

Usage suggestion:

1. Environment: Operate in a regular environment;

2. Suggested ratio: sulfur carbon: Keqin black: HSV900=91:3:6;

3. Temperature: During the pulp making process, the temperature should be controlled to avoid heating up the pulp;

4. Current collector: It is recommended to use carbon coated aluminum foil as the current collector;

5. Drying temperature: 50-60 ℃ is suitable. To ensure complete volatilization of NMP, it is recommended to bake overnight;

6. The recommended baking temperature after punching is 50-60 ℃, with a baking time of about 4 hours;

7. Suggested electrolytes: KLD-S17, KLD-S03, KLD-S46;

8. Recommended voltage range: 1.8-2.8V;

9. Nominal gram capacity: 850mAh/g

Lithium sulfur battery cathode material, without water absorption characteristics, high gram capacity

Product Advantage: High Energy Density

The carbon component in the sulfur–carbon composite cathode is biomass-derived hierarchical porous carbon (specific grade confidential), instead of Ketjen Black or conventional conductive carbon additives.

Test Item		Test Item	Unit	Specification	Actual Result	Testing Method / Instrument
Chemical Composition	Sulfur Content		(wt%)	75.0±2.0	75.0	ICP
Physical Properties	Particle Size Distribution	D10	(μm)	≥3.0	5.002	Laser Particle Size Analyzer
		D50	(μm)	9.0~20.0	15.012
		Dmax	(μm)	≤35.0	32.989
	TD (Tap Density)		(g/cm³)	>0.3	0.39	Tap Density Tester
Electrochemical Performance	First Discharge Capacity		(mAh/g)	≥850.0	857.1	CR20320.1/0.1C (1.8–2.8V)
Electrochemical Performance	First Discharge Efficiency		(%)	≥95.0	99.3	CR20320.1/0.1C (1.8–2.8V)

Half-cell Testing:

Item	Specification / Recommendation
Fabrication Environment	Normal environment conditions are acceptable for electrode preparation.
Recommended Ratio	Sulfur : Ketjen Black : HSV900 = 91 : 3 : 6, During slurry preparation, control the stirring temperature to avoid sulfur volatilization.
Current Collector	Aluminum foil coated with carbon layer
Drying Temperature	50–60°C is recommended (to ensure complete NMP evaporation, overnight drying is recommended).
Small Disc Electrode Drying Temperature	50–60°C, drying time: 4 h
Recommended Electrolyte	KLD-S17, KLD-S03, KLD-S46 (electrolyte amount: excess filling)
Assembly Recommendation	Place a layer of glass fiber separator on the positive electrode as an electrolyte absorption layer. Stainless steel springs are not required. Use foam to support the back side of the negative electrode (to prevent increased impedance and reduced electrolyte utilization).
Recommended Voltage Range	1.8–2.8 V (specific capacity: 850 mAh/g) 1.0–3.0 V (specific capacity: 1180 mAh/g)