Highly Conductive MXene Composite Film

Rigid-Flexible High Capacitance

A rigid-flexible hierarchical MXene composite film with synergistic hydrogen bonding and metal ion crosslinking, achieving high conductivity and capacitance through broadened interlayer spacing.

Li, Xiang · Luo, Hai · Tianyu, Fu · He, Lu · Lu, Limin · Wang, Peng · Xu, Hanping

Chemical Engineering Journal 2026

Specifications

Tensile Strength

{'zh': '19.29', 'en': '19.29'} MPa

Electrical Conductivity

{'zh': '136.17', 'en': '136.17'} S cm−1

Specific Capacitance

{'zh': '4286', 'en': '4286'} mF cm−2

Capacitance Retention

{'zh': '81.39', 'en': '81.39'} %

Energy Density

{'zh': '92', 'en': '92'} μWh cm−2

Advantages

Stronger Interlayer Bonding

Hydrogen bonding and Al3+ ionic crosslinking synergistically regulate MXene nanosheet orientation, significantly enhancing structural robustness.

Combines Strength with Flexibility

The flexible CNF-PANI layer and Al3+ broadened interlayer spacing of rigid MXene layers, creating a rigid-flexible hierarchical structure that provides both 19.29 MPa tensile strength and flexibility.

Stable Under Bending

Under 180° bending deformation, the specific capacitance decreased by only 1.59%, suitable for flexible energy storage applications.

Applications

• Flexible Supercapacitors：Provides flexible electrodes with high capacitance and bending stability, replacing conventional rigid electrodes.
• Flexible Energy Storage Devices：Can be directly integrated into flexible energy storage devices to meet deformability and lightweight requirements.
• E-skin Power Sources：Serves as e-skin power source that withstands bending while maintaining stable output.
• Wearable Electronics：Offers flexible power solutions for wearable electronics that conform to body movements.