Company Filing History:
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2 out of 105 Years Active: 2025
Title: Innovations of Wenqian Dong in Graphene Technology
Introduction
Wenqian Dong is a prominent inventor based in Shanghai, China. He has made significant contributions to the field of graphene technology, holding 2 patents that focus on the preparation and application of graphene materials. His work has implications for various industries, particularly in enhancing the performance of lithium-ion batteries.
Latest Patents
Wenqian Dong's latest patents include innovative developments in graphene powder and conductive composite materials. The first patent describes a graphene powder that consists of a stack of graphene sheets. This graphene powder is characterized by its Raman spectrum, which features a D peak and a G peak with specific peak heights. The ratio of these peaks is 0.10 or less, indicating its unique properties. This graphene powder can be utilized in conductive composite materials, anti-corrosion coatings, and heat dissipation composite materials. Notably, when applied in lithium-ion batteries, it significantly reduces electrode internal resistance and enhances battery stability across various current rates.
The second patent focuses on a conductive composite material of graphene, which includes graphene nano-sheets and conjugated copolymers. These copolymers possess alkynyl groups and are structured linearly, being grafted to the graphene nano-sheets. The preparation method involves pretreating the graphene nano-sheets and forming the conjugated copolymers in their presence. This composite material can be uniformly dispersed in an electrode slurry, reducing internal resistance and improving electrical conductivity. Additionally, its flexible structure helps buffer the volume expansion of silicon-containing negative materials during charge-discharge cycles, making it suitable for use in lithium-ion batteries.
Career Highlights
Wenqian Dong has worked with notable organizations such as China Petroleum Chemical Corporation and the Shanghai Research Institute of Petrochemical Technology, Sinopec. His experience in these institutions has contributed to his expertise in materials science and engineering.
Collaborations
Wenqian Dong has collaborated with talented individuals in his field, including Sai Sun and Siyu Zhang. Their joint efforts have further advanced the research and development of graphene technologies.
Conclusion
Wenqian Dong's innovative work in graphene technology showcases his commitment to advancing materials science. His patents not only highlight his expertise but also pave the way for future advancements in energy storage solutions.