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Product Properties

The detection instrument tests the performance of graphitized battery felt by simulating the working principle of large battery energy storage equipment. At the same time, through further modification of the graphite felt, the energy efficiency is improved. When the current density is 100mA / cm2, the energy efficiency is greater than 85%; when the current density is 120mA / cm2, the energy efficiency is greater than 84%; when the current density is 160mA / cm2, the energy efficiency is greater than 85% When it is more than 82% and 240mA / cm2, it is more than 80%. The main technical parameters are coulomb efficiency, energy efficiency, voltage efficiency and so on.

Technical Data

Carbon content(%):

>99.5 Oxidation rate(weight loss/h@600°C in air): <2.6%
Ash(%): <0.3 Porosity(%): 85-95
Bulk density(g/cm³):
0.08-0.13 Surface resistance(mΩ/c): 0.165-0.193
Specific surface(m²): 2.3-4 Internal resitance() 15.3-26.7
Felt shedding rate(μg/g felt): 2-3

Technical Data

Carbon content(%):

Ash(%): <0.3
Bulk density(g/cm³): 0.08-0.13
Specific surface(m²): 2.3-4
Felt shedding rate(μg/g felt): 2-3
Oxidation rate(weight loss/h@600°C in air): <2.6%
Porosity(%): 85-95
Surface resistance(mΩ/c): 0.165-0.193
Internal resitance() 15.3-26.7

Product Description

 This product is a kind of graphite felt electrode material for all vanadium flow battery, which is produced by needling, carbonization, graphitization and other processes with specially treated carbonizable fiber. The product has flat felt body, uniform thickness and consistent electrochemical performance everywhere. The electrode material used in all vanadium flow battery has the advantages of small internal resistance of stack, good and uniform electrochemical activity, good corrosion resistance and good cycling performance Low ring attenuation and high energy efficiency。

Product Size

Regular size
long(m) 10/20/50/100
wide(m) 1.22/1.35/1.42/1.45
thick(mm) 2.5/3.0/3.6/4.0/4.2/4.35/4.6/4.8/5.0/5.6/6.0/7.0
Maximum size long(m)




thick(mm) 7.0
Tailoring according to customer requirements

Performance curve of all vanadium flow battery

Packaging and transportation

Packaging: woven bag packaging

Mode of transportation: motor transport, logistics or express delivery


When the temperature exceeds 400 ℃, it must be used in protective atmosphere or inert gas. During transportation and storage, it can not be pressed heavily. It needs to be moistureproof. It can be cut or wound into any geometric shape as required.

Company Information


Shanghai Tanchain New Material Technology Co., Ltd is a high-tech enterprise focused on developing, producing, and marketing  technical textiles products and composite materials, for the industrial, transportation, automotive, and protective industries. We have more than 5 years' experience in producing innovative products for extremely protective and labor protective applications,and with our great advantage in sourcing and technology, Tanchain has grown to be one of the leading suppliers in Chinese technical textiles market. We have a complete industrial chain and a strict quality management system.  

Shanghai Office


Tanchain carefully selected raw material suppliers from dozens of first-class raw material suppliers domestically  and overseas,  and has signed  long-term supply agreements, which ensures that we have large quantities of the best quality raw materials on a timely basis, and it is also a fundamental guarantee of the quality of our company's products.

factory in Jiangsu

We have built high-standard modern factories  domestically and overseas, and have  hired managers and technicians with first-class work experience in domestic and foreign companies, so as to ensure that our products have our own technical advantages and market competitiveness.

Factory in Jiangsu


Good products allow us to obtain a large number of customers in domestic and overseas markets, and these high-quality customers are our company's valuable resources. Excellent customer groups give us information feedback while improving the function and quality of our products.


The quality control department has been established since the beginning  of the company, and the chairman of the company attaches great importance to quality control. We have invested a huge amount of money to ensure the quality of products, which is the basis for our long-term foothold in the market.   The factory manages and controls the whole process  from raw materials into the factory, production and processing to finished products, and each process follows  scientific norms in order for continuous  improvement.

Factory in Jiangsu

Our mission is to be recognized as a premier supplier to the markets we serve by providing quality yarns, fabrics and other textile products to satisfy the needs of our customers. Our mission will be accomplished through excellence in customer service, sales and manufacturing,  and supported by teamwork of all associates. We will continue our tradition of honesty, fairness and integrity in the relationships with our customers, associates, community and stakeholders.

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