GSアライアンス List of Products and Services

The "Carbon Alloy Catalyst (CAC)" demonstrates high oxygen reduction catalytic activity without the use of platinum, making it a platinum catalyst alternative that can contribute to reducing the cost of fuel cells. It can be utilized as an electrode catalyst for the cathodes of fuel cells and air batteries, as well as in automotive exhaust catalysts and selective oxidation catalysts for benzyl alcohol. These catalysts typically require a large amount of platinum; however, since platinum is an expensive resource concentrated in specific regions, the development of low-cost, easily procurable platinum alternative catalysts can have a significant impact on the widespread adoption of fuel cells. [Features] ■ Platinum alternative catalyst ■ Low-cost and easily procurable ■ Contributes to reducing product costs *For more details, please refer to the PDF document or feel free to contact us. *If you would like a paid sample, please inquire.

GS Alliance is a chemical company that primarily researches, develops, manufactures, and sells advanced materials for the environment and energy sectors. This document introduces materials for solid oxide fuel cells (SOFC), including "cathode, solid electrolyte, anode materials" and "interconnect materials, sealing materials." [Contents (Cathode, Solid Electrolyte, Anode Materials)] ■ Powder (bulk) ■ Printing inks, pastes (adjustable particle size, electrode, solid electrolyte concentration viscosity, water, organic solvents, etc.) ■ Pellets, discs (10mm, 14mm, 20mm, 50mm, etc.) ■ Synthesis of electrodes and solid electrolytes of oxides not listed * For more details, please refer to the PDF document or feel free to contact us. * If you would like paid samples, please inquire.

GS Alliance is a chemical company that primarily researches, develops, manufactures, and sells advanced materials for the environment and energy sectors. This document introduces the lithium-ion battery electrodes and solid electrolyte materials that we handle. We also accept contract synthesis of oxide battery materials not listed in the publication. 【Available Forms】 ■ Powders, inks, printing pastes (particle size, electrode, solid electrolyte concentration, viscosity, and types of aqueous and organic solvents can be adjusted) ■ Precious metal doping ■ Please consult us for electrodes and solid electrolytes not listed in the table. *For more details, please refer to the PDF document or feel free to contact us. *If you would like paid samples, please inquire.

Due to reasons such as the simplicity of the manufacturing method and the low cost of module materials, dye-sensitized solar cells and perovskite solar cells are gaining attention. In these dye-sensitized solar cells and perovskite solar cells, the differences in the manufacturing methods of titanium dioxide thin films, which is one of the main materials for the negative electrode, significantly affect the morphology of the thin films, the electronic structure of TiO2, surface states, and consequently the light-to-energy conversion efficiency. We provide this printable TiO2 paste, other oxide pastes (including n-type and p-type semiconductors), conductive carbon for the counter electrode, carbon nanotube ink, and the perovskite precursor "Methyl Ammonium Iodide (MAI)," among others. *For more details, please refer to the PDF document or feel free to contact us. *If you would like paid samples, please inquire.

"Solid acid catalysts" are widely used in petroleum refining and organic synthesis. Currently, p-toluenesulfonic acid, camphorsulfonic acid, and sulfuric acid are utilized, but these are generally assumed to be discarded, and even if recovered, it is labor-intensive. Our developed "carbon-based solid acid catalyst" can be recovered through filtration and shows a very large catalytic effect compared to other solid acid catalysts. [Features] - Widely applied in petroleum refining and organic synthesis - Recoverable through filtration - Very large catalytic effect compared to other solid acid catalysts - Relatively low cost *For more details, please refer to the PDF document or feel free to contact us. *If you would like a paid sample, please inquire.

"LLZO" is the only oxide-based solid electrolyte that is stable against lithium metal. To further enhance ion conductivity, we have developed "LLZO" by doping (solid solution) a certain metal to stabilize the high ionic conductive phase, which is cubic. We have succeeded in synthesizing and stabilizing a cubic system that exhibits high ionic conductivity. Please feel free to contact us anytime for technical details. 【Features】 ■ Cubic garnet-type structure ■ High conductivity ranging from 10^-4 to 10^-3 Scm^-1 at room temperature ■ The only oxide-based solid electrolyte that is stable against lithium metal ■ Available in powder and ink forms ■ Can be sized to 300-500 nm using nanoparticle dispersion technology * For more details, please refer to the PDF document or feel free to contact us. * If you would like a paid sample, please inquire.

Our company has developed a quasi-solid-state lithium-ion battery using LiNi0.5Mn1.5O4 as the positive electrode material, which is a spinel high-voltage type, and Li5Ti4O12 as the negative electrode material. All of these electrode and electrolyte materials are synthesized in-house. Although the current battery capacity is relatively low at about 25mAh/g for the positive electrode material (with stable cycle characteristics confirmed over several dozen cycles), its non-flammability and ability to be used at high temperatures are significant advantages from a safety perspective. Please feel free to consult us for any technical details or inquiries. *For more information, please refer to the PDF document or feel free to contact us. *If you would like a paid sample, please get in touch.

We have developed electrode materials made from a super porous material known as Metal Organic Framework (MOF). This substance is composed of metal cations and multi-dentate ligands that bridge them, and its properties can be freely altered based on the shape, size, and chemical environment of the pore spaces. The structure can be precisely controlled at the nanometer scale, and due to the vast combinations of metal ions and organic ligands, over 20,000 types of MOFs have already been reported. 【Features】 ■ Electrode materials derived from Metal Organic Framework (MOF) ■ MOF: A substance composed of metal cations and multi-dentate ligands that bridge them ■ Freely changes based on the shape, size, and chemical environment of the pore spaces ■ Structure can be precisely controlled at the nanometer scale *For more details, please refer to the PDF document or feel free to contact us. *If you would like a paid sample, please inquire.

We synthesized a lithium-rich positive electrode material with a certain chemical composition and also created a coating electrode ink using this positive electrode material. This ink was applied to an aluminum current collector to be used as an electrode, and a test lithium-ion battery was created using lithium metal as the counter electrode. A standard carbonate-based electrolyte was used, and the electrochemical characteristics were measured using conventional measurement methods for lithium-ion batteries. As a result, we were able to create a lithium-ion battery with a large capacity of approximately 265 mAh/g initially under a 0.1C current measurement condition, and it maintained 215 mAh/g even after 40 cycles. *For more details, please refer to the PDF document or feel free to contact us.

We have successfully developed a coating ink that demonstrates excellent electrochemical properties based on SiO powder from other companies through trial and error. This ink is applied to a current collector and used as an electrode, with lithium metal used as the counter electrode to create a test lithium-ion battery, utilizing a standard carbonate-based electrolyte. As a result, we were able to produce a lithium-ion battery with a very large capacity of approximately 1,620 to 1,800 mAh/g under current measurement conditions of 0.1 to 0.2C. 【Features】 ■ Very large battery capacity ■ Less than 10% decrease in battery capacity even after about 20 charge-discharge cycles ■ Minimal degradation of battery capacity, ensuring stability *For more details, please refer to the PDF document or feel free to contact us.

An innovative all-solid-state lithium secondary battery, which serves as an alternative to liquid electrolyte-type lithium secondary batteries, is being actively researched and developed by companies, universities, and research institutions both domestically and internationally. A key technology in this research is the development of solid electrolytes that can facilitate the rapid movement of lithium ions between electrodes. Solid electrolytes can be categorized into organic polymer-based and inorganic types, with inorganic lithium solid electrolytes broadly divided into sulfide-based and oxide-based categories. Among oxide-based solid electrolytes, there are NASICON-type solids such as Li1.3Al0.3Ti1.7(PO4)3 (LATP) and the garnet-structured Li7La3Zr2O12 (LLZO). Our company synthesizes LLZO, but we also produce perovskite-type Li0.33La0.56TiO3 (LLTO), which has lithium ion conductivity comparable to that of LLZO, and we offer LLTO in both powder and ink forms. During synthesis, the size is over several micrometers, but with nanometer-sized particle dispersion technology, it can also be reduced to sizes of 200-400 nm. *For more details, please refer to the PDF document or feel free to contact us.*

GS Alliance has developed a catalyst for the oxygen reduction reaction that serves as an alternative material to platinum catalysts. While a large amount of platinum is typically required for catalysts, platinum is an expensive resource that is unevenly distributed in specific regions. Therefore, the development of cost-effective and easily procurable platinum alternative catalysts is essential for the widespread adoption of fuel cells. Our company synthesizes metal-organic frameworks and porous coordination polymers, based on which we have developed a catalyst that does not use any platinum and possesses performance close to that of platinum-supported carbon catalysts. This catalyst demonstrates high oxygen reduction catalytic activity without the use of platinum, contributing to the reduction of costs for fuel cells and air batteries. Please feel free to consult us regarding any technical details or inquiries. *For more information, please refer to the PDF document or feel free to contact us.*

In modern society, lithium-ion batteries are representative energy storage devices, used in various applications including electric vehicles, hybrid cars, smartphones, and computers. However, initially, while secondary batteries with capacities significantly exceeding those of oxide positive electrodes can be developed, they generally exhibit poor cycle characteristics and degradation, which remains a challenge. From this perspective, our company is also advancing research and development on lithium-sulfur batteries, and as a result of trial and error, we are developing lithium-sulfur batteries that show an initial discharge capacity of 1200mAh/g and approximately 500mAh/g after 130 cycles. We will continue our research and development, including the synthesis of other materials, optimization of nanoscale structures at interfaces, and aim for further improvements in battery capacity. 【Features】 - The positive electrode uses a composite material of sulfur and carbon, the negative electrode material is lithium metal, and the electrolyte is optimized for a composition suitable for lithium-sulfur batteries. - All electrode materials and electrolytes are synthesized and optimized in-house by our company. *For more details, please refer to the PDF document or feel free to contact us.

We would like to introduce our "Cathode Materials for Lithium-Ion Batteries." Our product is synthesized from black mass extracted from discarded lithium-ion batteries. It does not use any highly toxic chemicals such as strong acids, utilizes recycled materials, and employs a non-toxic and cost-effective synthesis method, making it an environmentally friendly and sustainable cathode material derived from black mass. 【Features】 ■ Synthesized from black mass extracted from discarded lithium-ion batteries ■ Does not use any highly toxic chemicals such as strong acids ■ Utilizes recycled materials *For more details, please refer to the PDF document or feel free to contact us.