This technology features a composite structure that suppresses active material dissolution and enhances conductivity by alternately stacking carbon layers with metal compound layers containing molybdenum and selenium, inherently confining the metal compound layers between the carbon layers.
In conventional lithium-selenium batteries, the active material, selenium, dissolves into the electrolyte, degrading cycle life. Additionally, metal alloy-based active materials suffer from electrode damage due to volume expansion during charge and discharge cycles.
This technology involves mixing molybdenum, selenium, and carbon sources to obtain an intermediate product via primary heat treatment, followed by secondary heat treatment to produce a composite material with alternating layers of metal compounds and graphene or graphene oxide carbon layers. If necessary, a carbon shell layer can be added to maximize confinement. It can be applied to cathodes for lithium-ion and lithium-selenium batteries, as well as anodes for sodium/magnesium metal batteries and lithium-ion capacitors, offering the business advantage of targeting multiple electrochemical storage devices with a single material platform.
This invention was developed with support from the Austrian Institute of Technology's project, "Novel layered dichalcogenide with high performance anode materials for lithium ion batteries."
This technology is a wet synthesis method that produces an argyrodite-structured electrode composite with active materials bonded onto a sulfide-based solid electrolyte. It achieves this by uniformly dissolving and dispersing insoluble precursors and electrode active materials in a co-solvent mixture of amine and thiol solvents, followed by heat treatment.
Conventional wet synthesis methods suffer from non-uniform dispersion due to the low solubility of solid electrolyte raw materials and issues with residual solvents. Furthermore, they require complex electrode manufacturing processes involving the physical mixing of conductive additives, active materials, and electrolytes, which limits ionic conductivity and interfacial stability.
This technology uses a co-solvent of ethylenediamine and ethanedithiol in a 1:0.05–0.5 volume ratio to create a uniform reactant solution. Subsequent heat treatment at 210–800°C forms a composite where the solid electrolyte and active material are interfacially bonded, ensuring high ionic conductivity and adhesion without a binder. It can be applied to the cathode manufacturing of lithium all-solid-state batteries using conversion-type cathodes like FeS2 and sodium all-solid-state batteries based on Na11Sn2PS12, eliminating the need for separate dry mixing processes and increasing the contact area between the active material and electrolyte.
This invention was developed with support from the Ministry of Science and ICT for the development of core technologies for R2R-type high-ionic-conductivity functional solid-state electrolyte membranes.
This technology improves lithium-ion conductivity in a lithium halide (Li3-xM11-xM2xX6) structure by performing aliovalent substitution of a +3 metal (M1) with a +4 metal (M2), inducing a phase transition to monoclinic and orthorhombic II crystal structures.
Existing oxide, sulfide, and borohydride solid electrolytes suffer from low ionic conductivity, high interfacial resistance, and electrochemical instability. Some also generate toxic gases or require complex synthesis processes, limiting their potential for mass production.
This technology involves mixing Yb (M1) with Hf or Zr (M2) in a specific molar ratio, followed by heat treatment at 400–500°C to control the crystal structure. By creating a hybrid structure of monoclinic and orthorhombic II phases, it achieves ionic conductivity of 1–3 mS/cm and a low activation energy of 0.1–0.5 eV. It can be applied to cathode composite layers in all-solid-state batteries, high-safety EV cells, and dry-milling-based mass production, enabling high-conductivity room-temperature electrolytes without the risk of hydrogen sulfide generation.
This invention was developed with support from the Ministry of Science and ICT for the development of core technologies for R2R-type high-ionic-conductivity solid electrolyte membranes.
This technology is a cathode material that maximizes ion and charge transfer efficiency by doping a specific amount of indium (In) onto the surface of a lithium-nickel-cobalt-aluminum (NCA) composite oxide, transforming its irregular polygonal particle structure into nanorods with an aspect ratio of 5–10 to shorten lithium-ion diffusion paths.
Conventional NCA cathode active materials suffer from long lithium-ion diffusion paths and high ion-transfer resistance due to their irregular polygonal primary particle structure and numerous grain boundaries. These limitations lead to performance degradation during fast charging and reduced cycle life.
This technology synthesizes indium-doped nanorod cathode active materials with an aspect ratio of 5–10 while maintaining a layered structure with an interplanar spacing (D003) of 0.4–0.5 nm by mixing a transition metal precursor with a lithium precursor and indium(III) acetylacetonate, followed by calcination in an oxygen atmosphere at 700–740°C. Manufactured via simple solid-state mixing and a single calcination step, it is ideal for fast-charging EV cells, high-power power tool batteries, and communication device power supplies, enhancing rate capability with minimal dopant costs.
This invention was developed with support from the Ministry of Science and ICT’s Materials Computation program.
This technology features a cathode active material structure that physically prevents the dissolution of lithium-sulfur compounds into the electrolyte during charge and discharge cycles by repeatedly stacking molybdenum (Mo) and sulfur (S) compound layers with carbon layers, all enclosed within a carbon shell.
In conventional lithium-sulfur batteries, polysulfides generated during charge and discharge cycles dissolve into the electrolyte, leading to a loss of active material and a rapid decline in cycle life and capacity retention.
This technology involves mixing molybdenum, sulfur, and carbon sources, followed by sequential primary and secondary heat treatments to inherently position metal compound layers between carbon layers and form an outer carbon shell, structurally confining the lithium-sulfur compounds. It can be applied to lithium-sulfur batteries in fields where energy-to-weight ratio is critical, such as drones, high-altitude UAVs, and lightweight electric aircraft, minimizing sulfur active material loss over long-term cycling.
This invention was developed with support from the Austrian Institute of Technology's project, "Novel layered dichalcogenide with high performance anode materials for lithium ion batteries."
This technology is a gel polymer electrolyte with significantly enhanced flame retardancy and thermal stability, created by impregnating a polymer porous support with a liquid electrolyte and an ionic liquid cross-linker containing two or more double-bond functional groups, followed by heat treatment to form chemical cross-links.
Conventional liquid electrolytes use flammable organic solvents, posing high risks of ignition and fire during internal short circuits or temperature increases. Simple gel electrolytes also suffer from reduced ionic conductivity due to high viscosity and issues with leakage.
This technology incorporates at least 30 wt% of an ionic liquid cross-linker with two or more double-bond functional groups to form a high-density polymer network, which suppresses electrolyte evaporation and enhances flame retardancy. It also utilizes fibrous porous supports, such as polyamide-imide (PAI), to improve both wettability and electrochemical stability. Applicable to lithium-ion batteries, sodium-ion batteries, large-scale ESS modules, and EV battery packs, it contributes to fundamentally reducing fire risks caused by thermal runaway.
This invention was developed with support from the Ministry of Trade, Industry and Energy for the development of high-spec supercapacitors and high-power modules.
This technology features a silver-zinc battery structure that achieves both flexibility and conductivity by wrapping silver nanowires and zinc particles in carbon nanotube (CNT) sheets to create fiber electrodes, which are then twisted together with an electrolyte.
Conventional flat-plate batteries have limited design flexibility due to their fixed form factor and lack the flexibility and mechanical stability required for wearable device applications.
This technology consists of a cathode made by wrapping silver nanowires in a first CNT sheet and an anode made by wrapping zinc particles in a second CNT sheet, which are then twisted into a spiral and coated with an electrolyte to form an integrated, highly flexible structure. It can be applied to smart clothing, wearable healthcare sensors, and foldable electronic power sources, ensuring uninterrupted power supply even in environments subject to repeated bending or twisting.
This invention was developed with support from the Ministry of Science, ICT and Future Planning for research on environment-responsive self-energy generation and driving systems.
This technology involves adding both carbon disulfide (CS2) and phosphorus sulfide to the electrolyte of secondary batteries that use lithium metal or lithium alloy anodes. These two additives form an organic-inorganic composite protective layer on the lithium metal surface, suppressing dendrite growth and improving cycle life.
Using lithium metal as an anode has historically caused issues with the formation of a thick resistive layer due to reactions with the electrolyte. Furthermore, short circuits caused by dendrites and the accumulation of dead lithium have limited battery efficiency and cycle life.
This technology is configured by mixing a solution of solid phosphorus sulfide dissolved in liquid carbon disulfide into a carbonate-based electrolyte. CS2 aids in the formation and stabilization of the lithium metal protective layer, while effectively delivering phosphorus sulfide—which is otherwise poorly soluble in carbonate solvents—to create an effective organic-inorganic composite film on the lithium metal surface. It can be applied to lithium metal secondary batteries and electrolyte additive packages for lithium alloy anode cells, allowing for the improvement of the anode interface simply by adjusting the additive combination while utilizing existing carbonate electrolyte production lines.
This invention was developed with support from the Ministry of Trade, Industry and Energy's GET-Future Laboratory program for next-generation lithium-ion batteries.
This technology is a silicon oxide composite anode active material that suppresses magnesium gas leakage by adding alkali metal halide compounds during the reaction between silicon oxide and magnesium hydride. It forms homogeneous magnesium silicate and minimizes the content of magnesium oxide (MgO), an electrochemical insulator, through a washing process.
Conventional manufacturing processes for magnesium-silicon oxide composites have faced issues with low reaction homogeneity due to the evaporation or leakage of magnesium gas. Additionally, the generated magnesium oxide acts as an insulator, limiting electrochemical performance and initial efficiency.
This technology uses an alkali metal halide compound (MX) as a reaction additive to prevent magnesium gas leakage and includes a washing step with distilled water or an acidic aqueous solution after heat treatment to reduce residual MgO. The surface is coated with carbon material to enhance electrochemical stability. Applicable to silicon-mixed anodes for smartphones and electric vehicles, it secures higher capacity than graphite while reducing initial cycle coulombic efficiency loss.
This technology simulates atomic interactions and chemical reactions by calculating the electronegativity and partial charges of electrode and electrolyte atoms within lithium secondary batteries, enabling real-time prediction of dendrite growth and the inhibitory effects of additives.
Conventional experimental analysis techniques only allow for the observation of post-charge/discharge results, making it difficult to monitor the dendrite growth process in real time. Furthermore, verifying the effectiveness of additives required the repeated fabrication and testing of actual battery cells, leading to significant inefficiencies in time and cost.
This technology utilizes Reactive Force Fields (ReaxFF) and the Atom-Condensed Kohn-Sham Density Functional Theory approximated to second order (ACKS2) to predict dendrite formation at the molecular level. It optimizes simulation efficiency by applying distinct computational models to the anode region, where dendrites concentrate, and the cathode region, where they do not. It can be applied as a virtual verification tool for electrolyte additive screening, lithium-metal anode material development, and initial cell design, significantly reducing the number of prototype cells required and shortening the candidate material discovery phase.
This technology forms a 3D network structure through covalent bonding between carbon and sulfur within polymer chains. By mixing polymers containing unsaturated carbon double bonds with sulfur donors, vulcanization accelerators, and activators (ZnO, stearic acid) and applying heat treatment, the binder achieves superior mechanical properties and compatibility with sulfide-based solid electrolytes.
Conventional rubber-based binders often suffer from delamination from the substrate or electrode cracking during the drying process, and they fail to sufficiently suppress the expansion and contraction of active materials. Standard crosslinking methods also have limitations, as they can cause polar interactions that damage sulfide-based solid electrolytes.
This technology utilizes a vulcanization system that introduces sulfur into unsaturated polymers, such as butadiene rubber, to create a covalent-bond-based 3D network. By maintaining a Raman intensity ratio of polysulfide to disulfide bonds between 1.1 and 3.1, the structure prevents damage to the solid electrolyte while enhancing electrode durability and oxidation stability. Applicable to the manufacturing of cathode/anode mixtures and solid electrolyte sheets for sulfide-based all-solid-state batteries, it allows for the use of existing rubber processing materials and non-polar solvents while reducing cracking and peeling in large-area electrodes.
This invention was developed with support from the Ministry of Science and ICT for the development of core technologies for R2R-type high-ionic-conductivity functional solid-state electrolyte membranes.
This technology forms a core-shell structured anode active material by using a polymer binder to hydrogen-bond a 2D scaffold-type oxidized carbon-based nanostructure, functionalized with oxidizing agents and additives, onto the outer surface of silicon microparticles.
Silicon anodes suffer from severe volume expansion during charge and discharge cycles, leading to particle pulverization and electrical isolation. This process also causes the repeated formation of an unstable solid electrolyte interphase (SEI), resulting in rapid capacity degradation and electrode deterioration.
This technology functionalizes carbon-based nanomaterials like CNTs into a 2D scaffold form through oxidation and uses a polymer binder, such as CMC, to uniformly coat them onto silicon microparticles via hydrogen bonding, effectively suppressing volume expansion and minimizing SEI formation. As a simple, centrifuge-based wet process, it can be applied to mass-production lines for high-capacity silicon anodes, fast-charging EV cells, and high-density smartphone batteries, enabling stable cycle life even with micro-silicon instead of expensive nano-silicon.
This invention was developed with support from the Ministry of Science and ICT for the development of semiconductor single nanoparticle manufacturing with multiple heterojunctions and high-efficiency/high-selectivity photoelectrochemical Solar-to-X devices.
This technology involves doping nickel-based cathode active materials with less than 2 mol% of additive metals, such as tungsten. By adjusting the ratio of the rhombohedral crystal structure inside the particles to the cubic crystal structure on the surface, it improves structural stability, thermal stability, and cycle life.
Conventional nickel-based cathode active materials suffer from structural instability and particle degradation during high-voltage charging and discharging. They also face performance limitations due to gas generation from residual lithium and fluorine (F) penetration from the electrolyte.
This technology dopes additive metals like tungsten from the precursor stage to ensure uniform distribution throughout the particles and controls the crystal structure by increasing the calcination temperature in proportion to the additive concentration. Specifically, it increases the cubic crystal ratio on the particle surface to act as a protective layer, preventing side reactions with the electrolyte and stabilizing lithium-ion transport paths. Applicable to electric vehicle and plug-in hybrid batteries that require high-voltage charging, it achieves both surface stabilization and reduced gas generation through doping alone, without the need for additional coating processes.
This technology uses silica particles modified with organic functional groups, such as alkyl or mercapto groups, as templates. These are mixed with metal and subjected to low-temperature thermal reduction (400–1200°C) followed by acid etching. This allows for precise control over the structure (monolithic or composite) and morphology (spherical, hollow, or rattle-type) of the silicon carbide.
Conventional Acheson processes require ultra-high-temperature equipment exceeding 2000°C, leading to complex processes and high energy consumption. Furthermore, methods for producing hollow or rattle-type particles using external templates involve multiple steps and carry a risk of structural collapse.
This technology involves synthesizing silica particles with attached organic functional groups and independently controlling the type of functional group, thermal reduction time, and heat treatment conditions before and after metallothermic reduction. As a result, monolithic silicon carbide, silicon-carbon composites, and hollow or rattle-type particles can be efficiently obtained without separate templates. Applicable as volume-expansion buffering materials for silicon-based anodes and heat-resistant ceramic fillers, it enables the supply of customized SiC powders with engineered internal voids without the need for high-temperature facility investment.
This technology introduces a sacrificial cathode material (Li2Cu(1-y)NiyO2) into the cathode active material layer of an anode-free lithium secondary battery. During initial charging, this material acts as a lithium source and remains in a delithiated state after discharge, replenishing irreversibly consumed lithium and forming a thin, uniform surplus lithium layer on the anode current collector.
Anode-free lithium secondary batteries have historically faced issues with continuous SEI layer formation due to side reactions with the electrolyte during charge and discharge cycles. This, combined with lithium dendrite growth and non-uniform lithium deposition, has limited battery stability and cycle life.
This technology incorporates 10–40 wt% of a Li2Cu(1-y)NiyO2 (0.3≤y≤0.5) sacrificial cathode material alongside the main cathode active material. During initial charging, lithium released from the sacrificial material deposits onto the anode current collector. Since the sacrificial material does not re-lithiate after discharge, a surplus lithium layer remains to compensate for lithium consumed in subsequent cycles. Applicable to ultra-light wearables and high-energy-density mobile batteries, it reduces volume by eliminating anode materials while mitigating capacity loss over repeated cycles.
This invention was developed with support from the Ministry of Trade, Industry and Energy’s Advanced Track for Rare Metal Recycling Technology in Urban Mining.
