Beijing Yitian Mica Technology Co., Ltd.
Beijing Yitian Mica Technology Co., Ltd.
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Mica Gasket As Insulating Pad For Cylinder Cells Negative Electrode Of Energy Storage Battery Pack
Using mica gaskets as insulating pads for the negative electrodes of cylinder cells in energy storage battery packs can provide significant advantages.
Benefits of Mica Gaskets
Electrical Insulation: Mica gaskets offer excellent electrical insulation, preventing unwanted electrical conduction between the negative electrode and other components, which is critical for safety.
High Thermal Resistance: Mica can tolerate high temperatures without degrading, making it suitable for environments where heat generation is common, such as in battery operation.
Chemical Stability: Mica is resistant to many chemicals, including acids and bases, which enhances the durability of the battery pack in case of electrolyte leaks.
Mechanical Properties: Mica gaskets provide mechanical support and flexibility, ensuring a good seal while accommodating thermal expansion and contraction of battery components.
Low Moisture Absorption: Mica's low moisture absorption minimizes the risk of corrosion and other moisture-related issues, contributing to the longevity of the battery.
Considerations
Design Specifications: The thickness and dimensions of the mica gasket should be tailored to the specific requirements of the battery design to ensure proper insulation and sealing.
Cost Implications: While mica can be more costly than other insulating materials, its performance benefits may justify the expense in critical applications.
Compatibility with Materials: Ensure that the mica gasket is compatible with all other materials used in the battery pack, particularly the electrolyte and casing materials.
Applications
Mica gaskets can be effectively used in various types of energy storage systems, including:
Lithium-ion battery packs
Lead-acid batteries
Nickel-metal hydride (NiMH) batteries
Incorporating mica gaskets as insulating pads for the negative electrodes in cylinder cell battery packs can enhance performance, safety, and longevity. It’s essential to consider design, cost, and compatibility to fully leverage the advantages of mica in these applications.
Technical Data Sheet
| Property | HP5 | HP8 | Unit | Test Criteria |
| Mica Type | Muscovite | Phlogopie | Visual | |
| Mica content | 92 | 92 | % | IEC 60371-2 |
| Glue content | 8 | 8 | % | IEC 60371-2 |
| Density | 1.8-2.45 | 1.8-2.45 | g/cm3 | IEC 60371-2 |
| Yield Strength | ＞200 | ＞200 | MPa | GB/T 5019.2 |
| Moisture Absorption | ＜1 | ＜1 | % | GB/T 5019.2 |
| Fire Resistance | ||||
| Continuous working condition | 500 | 700 | ℃ | |
| Intermittent working condition | 800 | 1000 | ℃ | |
| Thermal gravimetry | ||||
| Thermal gravimetry at 500℃ | ＜1 | ＜1 | % | IEC 60371-2 |
| Thermal gravimetry at 700℃ | ＜2 | ＜2 | % | IEC 60371-2 |
| Electric property | ||||
| Dielectric strength | ＞20 | ＞20 | KV/mm | IEC 60243-1 |
| Insulation resistance at 23℃ | 1017 | 1017 | Ω·cm | IEC 60243-1 |
| Insulation resistance at 500℃ | 1012 | 1012 | Ω·cm | IEC 60243-1 |
| Flame retardant test | ||||
| Flame retardance | UL94 V-0 | UL94 V-0 | ||
| Smoke test | ＜4 | ＜4 |
| |
Mica Testings for New Energy Industry as below:
| Item | Property | Testing items | Testing criteria | Tested by |
| 1 | Physical Property | Mica content | IEC 60371 | YT Mica Internal Test |
| 2 | Glue content | IEC 60371 | ||
| 3 | Density | IEC 60371 | ||
| 4 | Thickness | Thickness Gauge Test | ||
| 5 | Water Absorption | ISO 62 | ||
| 6 | Delamination | GB/T 5019.2-2009 | ||
| 7 | TGA(Thermal Gravimetry Analysis) | IEC60371 | 3rd PartyTest | |
| 8 | Linear expansion coefficient (length direction) thickness direction | ASTM E831 | 3rd PartyTest | |
| 9 | Back glued performance | Peel off strength | ASTM D3330 | YT Mica Internal Test |
| 10 | Fire retardance | Flame retardance | UL94 | 3rd PartyTest |
| 11 | Cleanness | Cleaness | VDA19,ISO16232 | 3rd PartyTest |
| 12 | Thermal Property | Thermal conductivity | ASTM E1461 | 3rd PartyTest |
| 13 | Heat Capacity | ISO 11357 | 3rd PartyTest | |
| 14 | Fire Resistance | 1200±100℃,30min | YT Mica Internal Test | |
| 15 | Mechanic Property | 25℃ Bending Strength | ISO 178 | YT Mica Internal Test |
| 16 | 25℃Bending Modulus | ISO 178 | ||
| 17 | -40℃ Bending Strength | ISO 178 | ||
| 18 | 25℃ Tensile Strength | ISO 527 | ||
| 19 | 25℃ Section Elongation | ISO 527 | ||
| 20 | 25℃ Tensile Modulus | ISO 527 | ||
| 21 | Impact / Shock Strength | ISO 179:2010 | 3rd PartyTest |
| Item | Property | Testing items | Testing criteria | Tested by |
| 22 | Electrical properties | Insulation resistance | IEC 60093/IEC 62631-3 | YT Mica Internal Test |
| 23 | Volume resistivity | GB/T1410-2006 | YT Mica Internal Test | |
| 24 | Dielectric Strength | IEC 60243 | YT Mica Internal Test | |
| 25 | Withstand voltage test | GB/T1408-2016 | YT Mica Internal Test | |
| 26 | Comparative Tracking lndex(CTI) | IEC 60112 | 3rd PartyTest | |
| 27 | Ecologic performance | Hazardous substances | RoHS2.0 & REACH & ELV | 3rd PartyTest |
| 28 | Aging performance 85/85, 1000h, after the test completed, 2 hours standby at room temperature | Visual Inspection | YT Mica Internal Test | |
| 29 | Dimension Control | YT Mica Internal Test | ||
| 30 | Weight Control | YT Mica Internal Test | ||
| 31 | Water Absorption | ISO 62 | YT Mica Internal Test | |
| 32 | Tensile Strength | IEC 60371-2/GBT 5019.2 | YT Mica Internal Test | |
| 33 | Bending Strength | ISO 178 | YT Mica Internal Test | |
| 34 | Dielectric Strenght | IEC 60243 | YT Mica Internal Test | |
| 35 | Insulation resistance | IEC 60093/IEC 62631-3 | YT Mica Internal Test | |
| 36 | Withstand voltage test | GB/T1408-2016 | YT Mica Internal Test | |
| 37 | Thermal conductivity | GB/T 10294-2008 | 3rd PartyTest | |
| 38 | Flame retardance | UL94 | 3rd PartyTest |
Mica plate for storage energy
Mica plates can be an interesting choice for energy storage applications due to their unique properties. Here are some key points about mica and its potential uses in energy storage:
Mica plates have the potential to enhance energy storage systems, particularly in applications requiring high insulation capabilities and thermal stability. Further research and development could expand their use in innovative energy solutions.
Yitian Mica has obtained 5 invention patents, 21 practical patents, 20 software registration rights, and 3 trademarks. More intellectual property rights has been applied for verification.
YTMICA 5 invention patents:
a mica insulation material for battery cells and its processing & application.
a squeeze-resistant fireproof mica tape for power batteries and its processing & application.
high-temperature resistant mica tape & mica thermal insulation parts and their production methods.
a processing method for fire-resistant mica tape.
a fire-resistant insulation tape for optical cables.
System certifications obtained:
ISO9001 Quality Management System Certificate
ISO14001 Environmental Management System Certificate
ISO45001 Certificate of Occupational Health&Safety Management
IATF 16949 Quality Management System certificate
SA8000 Social Responsibility Management System Certificate
YT MICA fully implement the ISO 9001-2015 quality system operation,as a stan- dardization of internal management,strengthen the system building an important measure.A strict quality control system has been established,from raw materials, processes, finished products inspection,to ensure that every link in the production process is strictly in accordance with the standards for testing.
YT Mica has equipped with various fire-resistant testing devices and can assist customers in developing fire-resistant cable products according to different standards of various countries, providing one-stop solution service.
YT Mica has a dedicated R&D department working on innovations and the development of your projects. It is our longstanding experience with processing natural mica that allows us to provide tailor-made solutions for our end customers. Our product development and application engineering specialists will be in close cooperation with our customers to identify their needs and meet their specific requirements. If we don't have an immediate solution for you, our R&D department will work with you to develop and deliver the best possible solution that will meet your needs.
We have invested and developed expertise in machining, drilling, cutting, sawing and punching, thermal pressing/stamping our products to provide the best solutions to our customers. From our home made mica sheets we can manufacture pieces according to your technical specifications.
Know more about YT Mica at www.ncnc.cn
