Carbon based electrode materials _ Gold plated, Copper plated, Platinum plated _ Supercapacitors biosensors _ Advanced Institute of Technology

1、 Advanced Institute Technology: A professional manufacturer of flexible substrate coating

Advanced Institute (Shenzhen) Technology Co., Ltd. was established in 2016 and is located in Bao'an District, Shenzhen, Guangdong Province. It is a company specializing in shielding materials, insulation materials, thermal conductive materials, and morePrecious metal coatingA national high-tech enterprise. The company has its own registered trademark "Research Platinum" and has production bases in Shenzhen and Dongguan. It has passed ISO9001 quality management system certification and its products comply with GJB 773A aerospace standards and RoHS environmental requirements.

In the field of coating technology, the company has independently builtMagnetron sputtering and vacuum evaporation production line, usingContinuous production process of roll to rollMetal layers can be continuously deposited on the surface of flexible polymer films. Suitable substrates include various flexible materials such as FEP, PI, PET, LCP, PPS, PEN, PP, etc., and can be plated with metals including gold, silver, copper, aluminum, tin, nickel, titanium, platinum, etc. Relying on advanced physical vapor deposition (PVD) technology, the company has achieved nanometer level precise control of metal thin films on the substrate surface, with thickness ranging from a few nanometers to several hundred nanometers, ensuring extremely high uniformity and density.

Carbon based electrode materials are one of the key technological directions in the layout of advanced technology institutes. The company relies on its deep accumulation in the field of flexible substrate coating to extend coating technology to carbon based material systems, providing high-performance carbon based electrode solutions for energy storage, biosensing, and medical electronics.

2、 Carbon based electrode materials: a new frontier in coating technology

Carbon based materials have attracted much attention in the field of electrode materials due to their excellent conductivity, chemical stability, mechanical flexibility, and lightweight properties. Carbon based materials such as carbon nanotubes (CNTs) and graphene have become the core electrode materials for supercapacitors, electrochemical sensors, and flexible electronic devices due to their high specific surface area and excellent electrochemical performance.

Coating technology plays a key role in the preparation of carbon based electrodes. The PVD technologies such as magnetron sputtering and vacuum evaporation mastered by Advanced Institute Technology are also applicable to the deposition and modification of carbon based thin films. Through coating technology, metal layers (such as gold, platinum, copper, etc.) can be uniformly deposited on the surface of carbon based materials to formMetal/carbon composite electrode structureSignificantly improve the conductivity, stability, and biocompatibility of the electrode.

The main advantages of carbon based coating materials include:

• high conductivityMaterials such as carbon nanotubes and graphene have excellent electrical conductivity, and can be further reduced in resistivity after being modified by metal coating.
• Mechanical flexibilityCarbon based films have good adhesion with flexible substrates, making them suitable for wearable devices and flexible electronic applications.
• biocompatibilityCarbon materials are non-toxic and non irritating, meeting the biosafety requirements for medical implants and biosensing.
• Lightweight characteristicsCarbon based materials have low density, which helps to achieve lightweight design of devices.

3、 Preparation process of carbon based electrode

Advanced Institute Technology mainly adopts the following coating and modification technologies in the preparation of carbon based electrodes:

（1） Magnetron sputtering coating

By magnetron sputtering technology, metal layers (gold, platinum, copper, nickel, etc.) can be deposited on the surface of carbon based films (such as carbon fiber cloth, carbon paper, graphene film). This process has advantages such as uniform coating, strong adhesion, and low-temperature deposition. Metal/carbon composite electrodes combine the high specific surface area of carbon based materials with the high conductivity of metal layers, and exhibit excellent performance in supercapacitors and electrochemical sensors.

（2） Vacuum deposition

Suitable for depositing ultra-thin metal layers (usually less than 100nm in thickness) on the surface of carbon based materials, it can be used to prepare high-precision carbon based microelectrodes.

（3） Chemical Vapor Deposition (CVD)

It can be used to deposit single-layer graphene films on metal substrates, and then prepare flexible graphene electrodes through steps such as coating flexible polymer and etching metals. Single layer graphene films have excellent conductivity and mechanical properties, which can effectively reduce signal loss and interference.

4、 Core application areas

（1） Supercapacitors and Energy Storage Devices

Carbon based materials are the core components of supercapacitor electrodes. Carbon fiber based flexible electrode materials have shown significant application potential in supercapacitors due to their excellent conductivity, lightweight, high strength, large specific surface area, and high porosity. Advanced Institute Technology uses coating technology to metalize and modify carbon based electrodes, which can further enhance the conductivity and cycling stability of the electrodes.

（2） Electrochemical biosensors

Carbon based electrochemical sensors provide a powerful platform for detecting bioactive molecules due to their high sensitivity, high selectivity, low cost, and fast response. Carbon based materials such as carbon nanotubes and graphene, after being treated with gold plating, platinum plating, etc., can significantly improve the detection sensitivity and stability of sensors. Advanced Institute Technology has accumulated mature technologies in the fields of gold plating, platinum plating, silver plating, etc. for neural probes, and related processes can be extended to the field of carbon based biosensors.

（3） Flexible wearable devices

Carbon based materials such as carbon nanotubes and graphene have attracted much attention in the fields of flexible sEMG electrodes and wearable health monitoring devices due to their excellent mechanical flexibility and conductivity. The roll to roll continuous coating process mastered by advanced technology can achieve large-scale and high-efficiency production of carbon based flexible electrodes.

（4） Neural Probe and Brain Computer Interface

Carbon based materials have broad application prospects in the fields of neural probes and brain computer interfaces due to their excellent biocompatibility and electrochemical properties. Advanced Institute Technology has been deeply cultivating precious metal coating technology for ten years, tailoring solutions such as gold plating, platinum plating, silver plating, etc. for neural probes. Applying the coating process to carbon based neural electrodes is expected to further improve the long-term stability and signal quality of the electrodes.

5、 The technological advantages of advanced institute technology

• Full chain coating solutionThe company has mastered the full chain process from surface activation, vacuum coating, to metal coating, and can customize the coating system and microstructure of electrode materials according to different application needs.
• Multi substrate adaptabilitySuitable for substrate covering various flexible materials such as FEP, PI, PET, LCP, PPS, PEN, PP, etc. For carbon based electrodes, different carbon based substrates such as carbon fiber cloth, carbon paper, graphene film, etc. can be flexibly selected.
• Precise coating controlBy relying on magnetron sputtering and vacuum evaporation technology, precise control of coating thickness can be achieved at the nanometer to micrometer level.
• Large scale production capacityThe roll to roll continuous production process supports large-scale, high-efficiency bulk supply.
• Quality System AssuranceThrough ISO9001 certification, the product complies with GJB 773A aerospace standards and RoHS environmental requirements.

6、 Market prospects

With the continuous growth of demand for portable electronic devices, electric vehicles, wearable medical devices, and renewable energy storage, the market space for carbon based electrode materials is accelerating. The demand for carbon based coated electrodes, as a key link in connecting material science and application technology, will continue to be released in fields such as supercapacitors, biosensors, neural probes, and flexible electronics.

Advanced Institute (Shenzhen) Technology Co., Ltd. will continue to delve into the field of carbon based electrode coating, driven by core coating technologies such as magnetron sputtering and vacuum evaporation, to provide high-performance carbon based electrode coating solutions for industries such as energy storage, biosensing, and high-end healthcare.