Batteries / advanced materials
Graphene MesoSponge (GMS) and lithium-ion battery capabilities
This hub starts with the GMS conductive-additive capability that appeared in early search impressions, then connects it to adjacent Japanese cell-material and process assets. Use the asset pages to compare the engineering problem, constraints, readiness, and partnership route for each option.
7 published capability assets in this hub.
What this covers
- Graphene MesoSponge (GMS) conductive additives for lithium-ion electrodes
- Electrode coating, precision stacking, terminals, and current-collector materials
- Battery anode powders and materials for demanding or extreme environments
Published capability assets
Compare the problem solved, constraints, readiness, and partnership route on each record.
GMS conductive additive for high-voltage and silicon-anode cells
Graphene MesoSponge conductive additive designed to provide ion transport, high-voltage stability, and active-material swelling absorption in lithium-ion electrodes.
Targets conductivity, electrolyte transport, high-voltage degradation, and silicon-anode expansion constraints in high-performance lithium-ion cells.
Configurable roll coating for battery-electrode trials
Prototype roll-coating equipment applies battery slurry to copper foil, aluminum foil, or film using selectable coating-head configurations.
Allows battery developers to test electrode materials and coating conditions without committing to a full production-scale coating line.
Precision stacking equipment for lithium-ion prototype cells
Manual and automatic equipment stacks positive electrodes, negative electrodes, and separator rolls with selectable stacking and sealing configurations.
Reduces positional variation and operator burden during low-volume pouch-cell and lithium-ion prototype-cell assembly.
Precision burr-free press-formed terminal parts for Li-ion batteries
Complex 3D metal stamped/forged terminals and connectors for automotive EV batteries produced via integrated press processing on general presses.
EV battery terminals require intricate non-axisymmetric shapes with zero burrs, high precision, and durability under thermal/vibration stress, which traditional machining or simple stamping cannot achieve cost-effectively at volume.
Ultra-thin composite copper foil for lithium-ion battery anode current collectors
PET film (6µm) base with copper plating (~1µm per side) achieving 4µm total thickness, half the weight, and one-quarter the copper consumption of conventional rolled copper foil, enabling lighter, more resource-efficient battery cells.
Conventional rolled copper foil for Li-ion battery anodes is limited to ~8µm minimum thickness before handling becomes impractical (tearing, wrinkling). Thinner foil could reduce battery weight and material cost, but thin copper alone is too fragile. Teikoku Ion's composite approach uses a polymer film substrate for mechanical strength while plating ultra-thin copper layers for conductivity, breaking the thickness barrier.
Ionic liquid lithium-ion battery for extreme environments (vacuum, high-temperature, cryogenic)
Non-flammable, non-volatile lithium-ion battery using ionic liquid electrolyte that operates in vacuum (space-proven), at high temperature, and sub-zero conditions without swelling or ignition.
Conventional Li-ion batteries with organic-solvent electrolytes are flammable, volatile, swell in vacuum, freeze at low temperature, and fail at high temperature. This limits applications in space, aviation, desert solar, and medical devices. The ionic liquid electrolyte (molten salt, room-temperature liquid) eliminates volatility and flammability while maintaining wide-temperature operation.
Spherical graphite powder listed for secondary-battery anodes
Flake graphite spheroidized into high-FC powders (coated and uncoated ~18 µm grades) that the producer lists for secondary-battery anode use.
Anode makers need spherical natural-graphite powder with high packing density, low specific surface area and low oil absorption compared with flake, at a stated fixed-carbon level of 99.9% or higher.
Related Japanese companies
Companies shown here are linked from the published capability records in this hub.
3DC Inc.
Sendai, Miyagi, Japan
Develops and supplies Graphene MesoSponge (GMS) carbon materials for lithium-ion battery conductive additives and silicon-based anodes.
THANK-METAL Co., Ltd.
Miki, Hyogo, Japan
Designs and manufactures configurable lithium-ion battery prototype equipment, including precision roll coaters, stacking equipment, and related cell-assembly machines.
日伸工業株式会社 (Nisshin Kogyo Co., Ltd.)
Shiga, Japan (Otsu)
SME precision metal stamping specialist producing complex 3D burr-free terminal parts and components for automotive lithium-ion batteries.
Fuji Kokuen Co., Ltd.
Setagaya, Tokyo / Koriyama, Fukushima, Japan
Graphite importer and powder processor operating drying, grinding and classification in Koriyama, with spherical graphite grades listed for secondary-battery anodes and a Thailand expanded-graphite plant.
For teams qualifying this capability
- Is the bottleneck conductivity, high-voltage stability, swelling, coating, stacking, or current collection?
- Which cell chemistry, electrode format, and development stage should the supplier review?
- What test data or prototype scope is needed before a technical discussion?