This technology forms a continuous ion-conductive matrix by combining the ion-conductive blocks of a block copolymer with an ionic liquid, and minimizes the tortuosity of ion conduction paths by aligning non-conductive blocks into a face-centered cubic (FCC) or O70 structure.
Conventional polymer electrolytes have faced limitations such as high tortuosity in ion conduction paths, low ionic conductivity due to structural disorder, and insufficient mechanical strength.
By incorporating an ionic liquid into a block copolymer composed of hydrophilic conductive blocks (such as sulfonated polystyrene) and hydrophobic non-conductive blocks (such as polymethylbutylene), this technology controls the nanostructure to ensure non-conductive domains are regularly aligned in an FCC or O70 cubic structure, providing a foundation for enhancing the maturity of secondary battery electrolyte technology.
This technology involves immobilizing the amine group of a naphthoquinone derivative (e.g., DANQ) onto the carboxyl group of a gas diffusion layer (GDL) via peptide bonding. This suppresses the dissolution of the organic active material into the electrolyte and facilitates rapid electron and lithium-ion transport through a low bandgap (approximately 2.7 eV).
Conventional quinone-based organic cathode materials have faced practical limitations due to rapid capacity degradation caused by high solubility in liquid electrolytes, low electrical conductivity, and slow redox kinetics.
By synthesizing 2,3-diamino-1,4-naphthoquinone (DANQ) and immobilizing it onto the surface of a carboxyl-modified porous gas diffusion layer (GDL-COOH) via peptide bonding, this technology maximizes structural stability and electrochemical reversibility, thereby enhancing material competitiveness in the secondary battery electrolyte sector.
This technology involves acid leaching of steel slag, a byproduct of steel manufacturing, to form porous silicon oxide, followed by magnesium (Mg) thermal reduction in the presence of a heat absorber (such as NaCl) to produce porous silicon with controlled nanostructures.
Conventional silicon anode materials suffer from structural collapse due to volume expansion during charging and discharging. Furthermore, synthesizing nanostructured silicon has historically been cost-ineffective due to the need for expensive raw materials (like silane), complex multi-step processes, and costly templates.
By leaching steel slag with a 1–5M acid solution to remove impurities and mixing it with a heat absorber (1.5–10 times the mass) to prevent nanostructure collapse caused by localized heat during the Mg thermal reduction process, this technology enhances the value-added potential of resource recycling and circular economy applications.
This technology forms a composite layer of lithium chloride (LiCl) and metal (In, Al, Bi, As) alloys on the surface of a lithium metal anode to suppress dendrite growth and improve the interfacial resistance of the lithium powder anode.
Existing issues included low energy density when using lithium foil, the formation of dead lithium due to lithium dendrite growth during charge/discharge cycles, electrolyte depletion from side reactions, and reduced battery stability.
This technology utilizes naphthalene to remove the oxide film from the lithium powder surface, followed by a reaction with a metal chloride (e.g., InCl3) solution to form a 40–200 nm thick LiCl and lithium-metal alloy composite coating. This method can be used to increase the added value of secondary battery anode material applications.
This technology is a thermal management mechanism that efficiently dissipates heat from battery cells by placing heatsinks with circulating refrigerant between the cells and repeating the condensation and evaporation process through cooling members connected to external cooling channels.
Conventional methods cool only one side of the battery cell, leading to significant temperature variations within the cell, which results in degraded performance and a shortened lifespan.
This technology inserts U-shaped or ring-shaped heatsinks, where refrigerant circulates, between battery cells. By bringing the condensation section of the heatsink into contact with a cooling member to condense the refrigerant, and the evaporation section into contact with the cell surface to utilize the heat of vaporization for effective heat dissipation, this design has broad applications in the research and development of battery thermal management and safety systems.
This technology addresses heat generation in the tab areas of pouch-type battery cells by extending existing parallel plate-fin cooling structures to wrap and compress the tab heat dissipation section, effectively dissipating heat from the tabs to the outside through compression pads and internal fins.
While conventional parallel plate-fin methods are effective for cooling the sides of battery cells, they struggle to efficiently dissipate heat from the high-temperature tab areas, leading to uneven temperature distribution and reduced battery performance and lifespan.
By adding tab heat dissipation plates (first and second tab heat sinks) that wrap around both sides of the tabs and extending the existing internal fins and compression pads to enclose these heat sinks, this technology can be applied to improve the stability and longevity of battery thermal management and safety systems.
This technology involves manufacturing a cathode active material in the form of an organic salt by ionically bonding a non-coordinating anion, hexafluorophosphate (PF6-), to an organic compound (5,10-dimethylphenazine), thereby controlling its solubility in electrolytes.
In organic batteries, organic compounds used as cathode active materials often dissolve easily into the electrolyte, leading to issues such as self-discharge, poor cycle life, and battery short circuits caused by the shuttle effect.
This technology converts 5,10-dimethylphenazine into 5,10-dimethylphenazinium hexafluorophosphate salt using an oxidizing agent such as silver hexafluorophosphate for use as a cathode active material. When combined with a concentrated electrolyte, it significantly reduces the solubility of the organic compound, allowing for the stable achievement of the properties required for lithium secondary battery cathode materials.
This technology secures electrical conductivity and specific surface area by electroplating metal onto a carbonized fabric support. It further enhances electrochemical stability and suppresses the sulfur shuttle effect by applying a conductive capping layer through the layer-by-layer (LbL) self-assembly of sulfur polymers and functionalized carbon nanotubes (amine/carboxyl groups).
Conventional carbon-based supports suffer from insufficient conductivity and mechanical stability, while electroless plating often leads to impurities and uneven coating. Furthermore, increasing sulfur loading in lithium-sulfur battery cathodes has historically been limited by low electrical conductivity, volume expansion, and reduced operational stability due to the shuttle effect.
This technology provides a practical solution for developing next-generation lithium secondary battery cathode materials by heat-treating fabric at 600–2000°C to create a carbon support with a maintained network structure, followed by uniform electroplating of metals such as Ni, Cu, or Al.
This technology involves synthesizing iron-chromium oxide by loading Fe3+ ions onto an ion-exchange resin and performing ion exchange with a hexavalent chromium compound. It increases electrical capacity by substituting electrochemically active Fe3+ ions for the inactive Cr3+ ions found in conventional chromium oxides.
Conventional chromium oxide cathode materials (Cr8O21, Cr2O5) contain Cr3+ ions that do not contribute to oxidation/reduction reactions, which limits their potential for increasing electrical capacity.
By utilizing Fe3+-substituted ion-exchange resin to react with hexavalent chromium compounds and then heat-treating the product at 270–350°C, this technology can be applied to improve the stability and cycle life of secondary batteries.
This technology minimizes temperature gradients across battery cells by utilizing a thermal interface module between the battery cell and the cooling plate, featuring a multilayer structure (first to third conductive layers) with progressively increasing thermal conductivity from the inlet to the outlet, combined with adjustable cross-sectional areas (converging/diverging channels) for the internal fluid pipes of the cooling plate.
Conventional cooling structures suffer from significant temperature deviations within battery cells due to the temperature difference between the coolant inlet and outlet, and attempts to resolve this using heat pipes or phase-change materials often lead to increased system complexity and costs.
This technology offers a distinct competitive advantage in the battery thermal management and safety system market by 1) utilizing a hybrid thermal interface module (TIM) configured with layers of increasing thermal conductivity along the direction of coolant flow, from low at the inlet to high at the outlet.
This technology involves the production of a two-dimensional layered lithium manganese oxide containing crystal water (H2O). By inducing a reversible phase transition between a thermodynamically stable phase (layered) and a metastable phase (spinel-like structure) during lithium-ion insertion/extraction during charge/discharge cycles, it achieves both structural stability and high capacity.
Conventional layered cathode active materials have faced challenges such as difficulty in reaching theoretical capacity and reduced cycle life due to irreversible structural changes that occur during alkali ion extraction.
By synthesizing sodium manganese oxide and performing ion exchange in a lithium precursor aqueous solution to produce lithium manganese oxide containing crystal water (Li_xMnO_2·yH_2O, 0.23≤x≤1, 0.01≤y≤0.5), this technology enhances both the performance and commercial viability of lithium secondary battery cathode materials.
This technology controls the migration of lithium polysulfides and enhances ionic conductivity by dispersing negatively charged silica nanoparticles within the polymer electrolyte of a lithium-sulfur battery, creating a gradient structure that concentrates the particles toward the cathode.
In lithium-sulfur batteries, intermediate lithium polysulfides dissolve into the liquid electrolyte, causing side reactions on the electrode surface. Furthermore, the low ionic conductivity and limited ability of conventional composite polymer electrolytes to control polysulfide migration have historically led to reduced cycle life and capacity.
By introducing a composite electrolyte in which silica nanoparticles (100–500 nm in size with a negative charge of -10 mV or less) are dispersed within a gel polymer electrolyte, this technology is expected to overcome the limitations of existing materials when applied to lithium secondary battery cathodes.
This technology enhances efficiency by configuring dedicated single inductors and switching circuits for balancing between modules and between cells within a battery pack, performing hierarchical (module/cell) balancing simultaneously.
Conventional resistive methods suffer from high power loss, capacitor-based methods face efficiency drops due to hard switching and limitations in resolving voltage imbalances, and existing flyback methods encounter issues with increasing component (magnetic core) size and costs as the number of battery cells grows.
By configuring a first single-inductor transfer unit to control M battery modules and a second single-inductor transfer unit to control N cells within each module in parallel, this technology improves both the performance and commercial viability of battery management systems.
This technology involves mixing a silicon precursor with nitrogen-containing organic compounds (such as melamine, PVP, or PAN) and heat-treating the mixture at 500–800°C in an inert atmosphere to produce a carbon-silicon-oxide (CxNySiOz) composite in which nitrogen is chemically bonded to silicon/silicon oxide and carbon.
Silicon-based anode materials have historically faced challenges such as structural collapse due to rapid volume expansion during charge/discharge cycles, irreversible lithium loss (leading to low initial efficiency), and the inherently low electrical conductivity of silicon oxide.
By inducing a solid-state reaction through the addition of nitrogen-containing organic compounds at 10–200% of the silicon precursor's weight, this technology is expected to overcome the limitations of existing materials when applied to secondary battery anodes.
This technology constructs an electrode active material by intercalating mesoporous metal oxide nanoparticles between layers of nitrogen-doped reduced graphene oxide (rGO). This structure prevents particle re-aggregation and maximizes mass transfer efficiency through macro-pores formed between the layers.
Existing sodium-ion secondary batteries and hybrid capacitors have faced issues with kinetics mismatch between the anode and cathode due to the slow diffusion of sodium ions, as well as performance degradation caused by the re-aggregation of active materials.
This technology modifies mesoporous metal oxide-silica particles with polar organosilanes to induce electrostatic bonding with negatively charged graphene oxide. Through heat treatment, the graphene is reduced and nitrogen-doped, and the silica is subsequently etched away. This creates a nanocomposite structure where metal oxide nanoparticles are dispersed between graphene layers, which can be utilized to enhance both the quality and productivity of secondary batteries.
