20 visiting now: 13 USA USA flag 7 UK UK flag 6 Canada Canada flag 1 Germany Germany flag

Highlighted Companies

  • Enak Ambulance (Turkey): At ENAK , we continue our activities in the health sector by manufacturing the ambulances in accordance to... https://enak.tc/
  • Nature Hellas Care Products Co. (Greece): the purest Greek natural products for hair care & body treatment utilizing solely organic... https://enature.gr
  • Introduction To The Epoxy Sheet Used In Lithium Ion Battery - China

    price: 23.00 Dollar US$

    The epoxy sheet with excellent mechanical and dielectric properties are made of alkali-free fiberglass cloth impregnated with epoxy resin by hot-pressing process.

    It’s able to maintain stable electrical performance under the hot and humid working environment.

    Its flat and smooth surface as well as standard thickness tolerance allow the epoxy sheet to be used for electrical appliances, machinery, apparatus, and electronic parts which have insulation requirements, including a wide variety of switches, reinforcing sheet of the flexible printed circuit (FPC) and printed circuit board (PCB), precise polishing carrier (silicon wafer grinding), precise testing board, insulating strip, separating board, and backing plate for electrical equipment, motor insulating pieces as well as dies and molds etc.

    The heat resistance grade range of the epoxy sheets are B~H (130℃~180℃).

    Types of the Epoxy Sheet Suitable for Li-ion Battery 3240 epoxy sheets under GB/T 1303-2009 standard can be used for the insulation and encapsulation of lithium-ion batteries.

    The series of epoxy sheets not only can meet the insulating requirements of your products but also has various colors for you to choose.

    The corresponding types of the epoxy sheet under the National Electrical Manufacturers Association (NEMA) standard include FR-4 (temperature resistance 130°C, black, white, yellow, aqua green ones are available ), G10 (temperature resistance 155°C, color: aqua green), FR-5 (temperature resistance 155°C, color option: yellow-brown and dark green) and G11 (temperature resistance 180°C, yellow), as well as ordinary epoxy sheets (temperature resistance 130°C, color: yellow).

    The difference between G10 and G11 is that the fiberglass content is 10% and 11% respectively.

    Therefore, for those who require flame retardant performance, FR-4 and FR-5 can be the best choice.

    Li-ion Battery Assembly Process The Li-ion battery is assembled from battery cells after series & parallel connection, and wire welding.

    The assembly process of battery cells requires good insulation and isolation of the charged parts, making sure the correct current path.

    The paper washers needed to be placed when connecting the positive electrodes of the cells in parallel.

    Meanwhile, the properly cut fish paper and epoxy sheets should also be added to separate each string of cells.

    After the cells are assembled, the whole battery pack needs to be fixed with insulating sheets.

    The reason why the epoxy sheet is selected as the outer casing of the battery pack instead of steel or aluminum one is that although these materials are beautiful and sturdy, it is hard to guarantee the well combination of the battery cells.

    If handed improperly, the battery cells might probably be scratched, which will cause battery leakage and safety accidents.

    Therefore, the epoxy sheet is very ideal for li-ion battery insulation and packaging.


    Company Contact:


    • Phone: +8613137718313

    • Address: 25th. Floor, NO.273 West 3rd. Ring Street, Zhengzhou , China

    • Email: Email


    Published date: August 26, 2021

    • Business Description: ZTELEC GROUP is manufacturer specialized in research and development, production and sales of transformers and electrical insulation materials for 62 years.

    Related listings



    • Water Oil Proof Fabric
      Water Oil Proof Fabric
      Fabric - Other - Xinxiang Weis Textiles Garments Co Ltd - China - August 1, 2021 - 3.00 Dollar US$

      Quality Standards: The European Standards Association (EN) Function: Water oil repellent Composition and content: cotton Yarn branch: 21 * 21 Density: 108 * 58 Weight: 210 ±5%gsm Width: 57 / 58 inches Dyeing and finishing process: dyeing Specific use...

    • Anti Static Fabric
      Anti Static Fabric
      Fabric - Other - Xinxiang Weis Textiles Garments Co Ltd - China - August 1, 2021 - 3.00 Dollar US$

      Quality Standards: The European Standards Association (EN) Function: Antistatic Composition and content: cotton + antistatic fiber Yarn branch: 32 * 32 Density: 130 * 70 Weight: 170 ±5%gsm Width: 57 / 58 inches Dyeing and finishing process: dyeing Sp...

    • Metal Fiber Anti Static Fr Fabric
      Metal Fiber Anti Static Fr Fabric
      Fabric - Other - Xinxiang Weis Textiles Garments Co Ltd - China - August 1, 2021 - 3.00 Dollar US$

      Quality Standards: The European Standards Association (EN) Function: Antistatic and flame retardant Composition and content: cotton + antistatic fiber Yarn branch: 14 * 10 Density: 84 * 32 Weight: 300 ±5%gsm Width: 57 / 58 inches Dyeing and finishing...



    Safe Trade Tips

    • Ask for business references and check them
    • Use a payment method that offers better protection for all such as Letters of credit and verified professional escrow services. Avoid payments in advance such as money transfers
    • Verify their business via their local Chamber of Commerce
    • Search the internet using their website address, their business name, their phone and fax numbers, and their email addresses to see if you can find any feedback about them.
    • Get to know more about scams to avoid: Internet Crime Complaint Center - International Financial Scams
    • This site is never involved in any transaction, and does not handle payments, shipping, guarantee transactions, provide escrow services, or offer "buyer protection" or "seller certification"