Chien-Liang Chang

Title: Innovations of Chien-Liang Chang in Supercapacitor Technology

Introduction

Chien-Liang Chang is a prominent inventor based in Taoyuan, Taiwan. He has made significant contributions to the field of supercapacitor technology, holding a total of 5 patents. His work focuses on enhancing energy storage solutions through innovative materials and methods.

Latest Patents

One of his latest patents is titled "Nitrogen-doping porous graphene material in supercapacitor and production method thereof." This invention features a high energy and power density supercapacitor. The design includes a coin cell with components such as a spring lamination, a working electrode, a counter electrode, a separator, and an organic electrolyte. The working and counter electrodes consist of activated carbon/N-doping porous graphene/binder coated on an aluminum substrate. The separator is sourced from Nippon Kodoshi Corporation, and the organic electrolyte used is 1M TEABF4/PC. The production method for N-doping porous graphene involves several steps, including transferring graphite oxide into a furnace, injecting nitrous oxides, and controlling the temperature to achieve the desired material properties. The resulting supercapacitor boasts a capacitance of 122 F/g and a power density of 31 kW/Kg.

Another notable patent is "Supercapacitor of N-P doping porous graphene material in ionic liquid electrolyte and method for preparing thereof." This invention provides a high volumetric energy and power density supercapacitor. Similar to the previous design, it includes a coin cell, spring lamination, working and counter electrodes, a separator, and an ionic liquid electrolyte. The electrodes are made of N-P doping porous graphene coated on an aluminum substrate, with the ionic liquid electrolyte being EMI-FSI. The production method involves heating graphite oxide in a furnace and subsequently combining it with red phosphorus under specific atmospheric conditions. This supercapacitor achieves a capacitance of 105 F/g and a volumetric power density of 1.19 kW/L.

Career Highlights

Chien-Liang Chang is affiliated with the National Chung Shan Institute of Science and Technology, where he continues to advance research in energy storage technologies. His innovative approaches have positioned him as a key figure in the development of supercapacitors.

Collaborations

He has collaborated with notable colleagues, including Wu-Ching Hung and Jeng-Kuei Chang, contributing to