This technology optimizes the ratio of training data to validation data based on dataset performance evaluation results and uses predictive modeling for substitute particle combinations within specific crystal structures (layered structures) to automatically select high-performance cathode active material candidates.
Developing new cathode active materials is costly and time-consuming, and there have been technical limitations in identifying materials that minimize cobalt content while simultaneously achieving high energy density and structural stability.
This technology receives labeled datasets, determines training data ratios through model performance evaluation using validation datasets, and generates predictive models to determine substitute particle ratios within specific compositions (Chemical Formula 1) and layered structures. By screening candidates in this manner, it can effectively contribute to securing commercial competitiveness for lithium secondary battery cathode materials.
This technology is a system and method for high-speed screening of optimal filler materials for polymer/oxide composite electrolytes. It extracts materials with dual-doped Li, La, and Zr sites in an LLZO (Li7La3Zr2O12) structure from a database and predicts their properties using machine learning (RF, LGBM).
Existing research on LLZO-based filler materials faces challenges due to the vast number of possible combinations of doping elements, which requires significant time and cost for experimental approaches and makes it difficult to identify the optimal composition to overcome the performance limitations of composite electrolytes.
By doing so, this technology can contribute substantially to securing the commercial competitiveness of secondary battery electrolytes.
This technology features an automatic fire suppression mechanism that senses the temperature of a battery pack, deploys a rolled-up fire blanket via a motor when a fire risk is detected to seal the pack, and subsequently injects a fire extinguishing agent through a nozzle.
Due to the structural characteristics of electric vehicles and similar systems, suppressing battery pack fires is difficult, creating a critical need for immediate fire suppression and the prevention of fire spread.
This technology utilizes an integrated automatic fire suppression system that moves a fire blanket stored in a rolling unit on one side of the battery pack to the other side using a drive motor to cover the battery, followed by the injection of a fire extinguishing agent through a nozzle connected to a high-pressure chamber and hose. This can be incorporated into battery thermal management and safety systems, contributing to process simplification and cost reduction.
This technology forms a binder-free nanoblended assembly through coordination bonding between transition metal oxide nanoparticles and carboxyl-modified carbon black (CCN), promoting uniform distribution of electrode components and reducing contact resistance.
Conventional slurry-based electrodes face issues such as increased resistance due to polymer binders, non-uniform distribution (agglomeration/separation) during solvent evaporation, and structural instability and resistance problems caused by insufficient interfacial interaction between metal oxides and carbon additives.
By using acid-treated, carboxyl-modified carbon black (CCN) as a conductive linker, this technology replaces organic ligands on the surface of transition metal oxides through coordination bonding. This allows for uniform assembly of components at the nanoscale, offering new design flexibility in the field of secondary battery anode materials.
This technology induces copper sulfide (CuS) anode active materials to undergo fragmentation and self-healing during repeated charge/discharge cycles in specific electrolytes (including DME), transforming them into a 3D porous structure.
Conventional copper sulfide anodes have suffered from low structural stability and degraded cycle life due to the fragmentation of active materials during repeated charge/discharge, as well as limitations in increasing active material loading due to binder constraints.
By using a DME (dimethoxyethane) electrolyte, this technology allows CuS to fragment and then recombine (self-heal) during charge/discharge to form a 3D porous structure, which mitigates volume expansion stress. Furthermore, by introducing a PAA (polyacrylic acid) binder, the active material content can be increased to 70–80 wt% or more, improving electrochemical performance and stability and providing a distinct technological advantage in the secondary battery anode market.
This technology is a polymer-inorganic composite solid-state electrolyte that suppresses lithium dendrite growth and improves ionic conductivity by converting crystalline succinonitrile into an amorphous phase through the interaction between lithium salt and succinonitrile (SN), followed by UV curing of vinyl monomers (e.g., VEC) and cross-linking agents.
Existing liquid electrolytes used in lithium-metal batteries face issues such as fire hazards and unstable SEI layer formation, while polymer electrolytes for all-solid-state batteries suffer from performance limitations due to low ionic conductivity at low temperatures and crystallization.
This technology is suitable for simultaneously improving the reliability and efficiency of secondary battery electrolytes by heat-treating succinonitrile (SN) and lithium salt to form a primary amorphous mixture, then adding vinyl monomers, acrylic cross-linking agents, and initiators, followed by UV curing to produce a solid-state electrolyte that maintains an amorphous phase.
This technology achieves isotropic ion diffusion by reducing alloy-based anode particles into nanodots and embedding them into a carbon matrix, which induces a single-phase reaction instead of a two-phase reaction during charge and discharge cycles.
Conventional alloy-based anodes suffer from performance degradation in cycle life and power output due to non-uniform ion diffusion and volume expansion, which lead to interface-controlled reactions, phase separation, particle pulverization, high activation energy, and mechanical failure.
By utilizing a dual-polymer protection and calcination method, this technology reduces alloy-based anode particles to a size of 0.5–30 nm and composites them with a carbon matrix. This increases the critical nucleation energy and narrows the miscibility gap, thereby enhancing the value of secondary battery anode applications.
This technology utilizes a tandem-type oscillating heat pipe channel structure that positions the refrigerant evaporation zone at the center of the battery cell and condensation zones at both edges, effectively eliminating localized hotspots and optimizing heat transfer efficiency from the center to the periphery.
Existing cooling methods have faced challenges such as the risk of thermal runaway during high-temperature operation of lithium-ion batteries, performance degradation due to localized hotspots, structural complexity, and low heat transfer efficiency.
This technology features a pair of tandem channels (first and second channels) symmetrical about the center line within the cooling plate. By designing the central area facing the battery as the evaporation zone and the peripheral area as the condensation zone, the refrigerant circulates through a closed loop driven by vaporization-expansion pressure differentials, providing a practical solution for next-generation battery thermal management and safety systems.
This technology utilizes a mixed solvent of diethyl ether (DEE) and dimethoxyethane (DME) at an optimal volume ratio (1:1.2 to 1:3) to prevent phase separation in lithium-sulfur batteries, thereby suppressing lithium dendrite growth and enhancing the conversion kinetics of lithium polysulfide (LiPS).
Conventional lithium-sulfur batteries have suffered from reduced cycle stability due to the shuttle effect caused by lithium polysulfide (LiPS) dissolution during charge/discharge cycles, as well as dendrite formation and side reactions on the lithium anode surface.
By using an organic solvent mixture of DEE and DME in a volume ratio of 1:1.2 to 1:3 as an electrolyte, this technology forms a stable solid electrolyte interphase (SEI) and promotes rapid LiPS conversion without the need for high-concentration lithium salts or additional diluents. This improves battery performance and cycle stability, making it highly useful for increasing the efficiency of secondary battery electrolyte manufacturing processes.
This technology forms a polymer-free single-walled carbon nanotube (SWCNT) network coating on the surface of a copper current collector to suppress zinc dendrite growth and induce uniform zinc deposition between the current collector and the coating layer.
In anode-free aqueous zinc batteries, non-uniform dendrite growth during zinc deposition leads to battery short circuits, while existing solutions using additives or 3D porous current collectors suffer from low cost-efficiency and complex manufacturing processes.
By applying a 0.1–3㎛ thick coating layer composed of over 90 wt% SWCNT without polymer binders onto a copper current collector via a doctor blading process, this technology creates a 3D network structure with excellent electrical conductivity and mechanical strength, offering a practical solution for developing next-generation secondary battery anode materials.
This technology optimizes battery cell cooling and heating performance by segmenting phase change materials (PCM) with varying thermal conductivities based on the temperature gradient pattern of the cell, integrated with metal pins and high-thermal-conductivity sheets.
Conventional cooling plate methods suffer from temperature differences caused by coolant flow paths and temperature gradients between the top and bottom of battery cells, which can lead to cell degradation, fire risks, and reduced lifespan.
By dividing the PCM into multiple segments based on the battery cell temperature gradient and applying synthetic PCM with adjusted contents of heat transfer materials (such as metal foam or carbon materials) for each zone, this technology contributes to enhancing material competitiveness in the field of battery thermal management and safety systems.
This technology forms a positively charged polymer backbone by self-crosslinking an acrylonitrile-based polymer containing azide groups (-N3) via tetrazolium crosslinking. By incorporating negatively charged counter ions and a liquid electrolyte, it creates a bi-continuous structure (forming ion channels) that simultaneously improves lithium-ion conductivity and mechanical strength.
Conventional gel polymer electrolytes offer excellent ionic conductivity due to the inclusion of liquid electrolytes, but they suffer from significantly reduced mechanical strength as the liquid electrolyte resides between polymer chains. Introducing crosslinked structures to improve mechanical strength typically leads to a trade-off where electrochemical properties are compromised.
This technology introduces a tetrazolium-based self-crosslinking structure into an acrylonitrile-based polymer to secure mechanical strength. By forming a bi-continuous structure with counter ions to establish lithium-ion conduction channels, it contributes to enhancing material competitiveness in the secondary battery electrolyte sector.
This technology is a composite electrolyte that improves physical contact at the electrode-electrolyte interface and ensures chemical stability by impregnating a porous sulfide-based solid electrolyte pellet with a liquid electrolyte of a specific composition (EC/DEC volume ratio of 2–4:6–8).
Existing issues included the inherent chemical instability of sulfide-based solid electrolytes, the formation of interfacial resistance layers with electrodes, and physical contact degradation and short-circuiting caused by micropores within the solid electrolyte.
This technology involves manufacturing a sulfide-based solid electrolyte pellet (compressed at 100–200 MPa) and impregnating its internal pores with a liquid electrolyte (containing lithium salt) consisting of ethylene carbonate (EC) and diethyl carbonate (DEC) in a volume ratio of 2–4:6–8. This enhances interfacial contact and forms a passivation layer that suppresses dendrite growth, thereby improving both the quality and productivity of secondary battery electrolytes.
This technology is a silicon-based anode material that improves electronic conductivity by introducing fluorine into the lattice and surface of crystalline silicon particles, and enhances tap density by forming secondary aggregates of nanoparticles.
Existing silicon anode materials have faced challenges such as low electrical conductivity, structural instability due to volume expansion during charge and discharge cycles, reaction non-uniformity caused by surface oxidation (SiOx), and low tap density.
This technology synthesizes silicon nanoparticles doped with fluorine within the crystal lattice and on the surface through a Solid-Vapor-Solid (SVS) reaction process using solid-state precursors (Na2SiF6) and reducing agents (such as Mg). By manufacturing these into a secondary aggregate structure, it can effectively contribute to securing commercial competitiveness for secondary battery anode materials.
This technology involves the design of a polystyrene polymer containing two or more adjacent functional groups (e.g., -OH and -SO3H) within the molecule. By utilizing hydrogen bonding between these functional groups, the technology suppresses electrostatic interactions with ionic liquids and effectively forms ion channels.
Conventional polymer electrolytes suffer from a trade-off where strong electrostatic attraction between the ionic liquid and the polymer matrix causes ions to become quenched by the polymer chains, leading to slow ion diffusion and difficulty in simultaneously achieving high mechanical properties and high ionic conductivity.
This technology weakens electrostatic attraction through hydrogen bonding between adjacent functional groups within a single molecule, thereby suppressing ion aggregation. By inducing rod-shaped ion channels between high-strength polymer domains, it decouples polymer chain dynamics from ion conduction. This allows for the simultaneous achievement of excellent ionic conductivity and high mechanical strength, making it a promising solution for secondary battery electrolytes that overcomes the limitations of existing materials.
