Introduction to LSB

Battery fabrication process diagram.

Smekens, Jelle, et al. "Influence of electrode density on the performance of Li-ion batteries: Experimental and simulation results." Energies 9.2 (2016): 104.

Luthfi, Muhammad. "State estimation of lithium ion battery using non-invasive method." Cartinthia University of Applied Science, Austria (2018).

Coating schematic.

Battery pole piece.

The basic structure of a lithium-sulfur battery consists of a lithium metal anode, sulfur cathode, and a separator in between, with an electrolyte providing approximately 3 V of voltage. In addition to having a high theoretical capacity and energy density, sulfur is abundant in the Earth's crust, making the cost lower. When lithium combines with sulfur in the anode, the theoretical capacity of lithium-sulfur batteries can reach four times that of lithium-ion batteries. Therefore, lithium-sulfur batteries are considered one of the most promising strategies to replace lithium-ion batteries in the future.

Lithium Ion Battery

Lithium-ion batteries (LIB), as a new type of energy storage device, possess advantages such as high energy density, low self-discharge, high operating voltage, wide temperature range, no memory effect, and long cycle life. Due to the absence of heavy metals such as cadmium, lead, and mercury, lithium-ion batteries cause lower environmental pollution and are considered the most important secondary batteries. Common cathode materials include lithium cobalt oxide (LiCoO2), nickel cobalt manganese (NCM), and lithium iron phosphate (LiFePO4). We have successfully synthesized the widely used NCM811 and further modified it to enhance the performance of lithium-ion batteries.

Lithium Sulfur Battery

In recent years, three-dimensional structures have been widely discussed. We synthesized hydrophobic Co9S8 nanoparticles using a chemical co-precipitation method. Employing the Bottom-up Breath Figure principle, we created a honeycomb-like porous structure and applied this material to the cathode of lithium-sulfur batteries (LSB).

以Breath Figure製作硫化鈷多孔性三維材料用於鋰硫電池正極，王郁順、黃有宸、蔡依靜、張恕豪*，台灣化工學會會刊，2023年4月號，DOI: 10.29803/CE.202304_70(2).0003

Wang, Minya, et al. "Porous carbon hosts for lithium–sulfur batteries." Chemistry–A European Journal 25.15 (2019): 3710-3725.

Li, Tao, et al. "A comprehensive understanding of lithium–sulfur battery technology." Advanced Functional Materials 29.32 (2019): 1901730.

Sodium Ion Battery

Sodium-ion batteries (SIB) represent a next-generation sustainable energy storage technology. Compared to traditional lithium-ion batteries, sodium-ion batteries offer advantages such as higher capacity, longer lifespan, and lower cost. They also hold potential for use in large-scale energy storage systems. Sodium-ion batteries can be employed to balance grid loads, store energy from renewable sources like solar and wind, and power electric vehicles. Our laboratory's research focuses on the application of metal sulfides in the negative electrode materials of sodium-ion batteries. Metal sulfides, known for their high capacity and excellent conductivity, enable sodium-ion batteries to store more energy. In comparison to traditional carbon materials, metal sulfides can achieve higher energy density and longer cycle life. Furthermore, metal sulfides exhibit good stability and durability, enduring multiple charge-discharge cycles without significant degradation. This allows sodium-ion batteries to maintain stable performance over prolonged usage. Despite existing technical challenges, ongoing developments and research in sodium-ion batteries contribute significantly to expanding their applications, playing a vital role in the transition towards sustainable energy.

Zinc Ion Battery

Compared to the commonly used lithium-ion batteries, zinc-ion batteries (ZIB) have garnered increasing attention in recent years due to their lower cost, higher safety, high tolerance to water, and relatively environmentally friendly characteristics. Common cathode materials include vanadium-based and manganese-based materials. The current research focus in our laboratory is primarily on the development of cathode materials with high working voltage, stability, and higher theoretical capacity.

Comparison between LIB and ZIB.