All-Solid-State Li-ion Battery
全固体リチウムイオン電池
Because all-solid-state batteries, in contrast to lithium-ion batteries, use solid-state electrolytes instead of liquid ones, the risk of ignition and explosion is greatly diminished. Thus, it can be called the real safe secondary batteries.
In addition, the degree of freedom in design of all-solid-state battery is high. Meanwhile, it could have higher power and energy density and can be easily used in electric vehicles. Owing to the high levels of safety and absence of liquid electrolytes, the battery can be handled easily in the production process, Thus, the productivity is much higher than that in the case of lithium ion batteries. We are working on research and development, as well as utilization of the next-generation all-solid-state batteries.
About lithium ion conductive polymer electrolytes
Since a flammable organic solvent is used generally in the electrolyte of existing lithium-ion secondary batteries, there are life-critical concerns about its safety. Therefore, a high degree of safety is to be expected by substituting the electrolyte with a flame-retardant lithium-ion conductive solid polymer electrolyte. We have developed various such polymer electrolytes for the all-solid-state batteries.
About patent cases
- "Novel polymer electrolyte as lithium-ion conductor"
- Japanese Patent No. 7141635
- "Preparation of Li2S-P2S5-SeS2 solid sulfide electrolyte and suitable cathode material for all-solid-state lithium sulfur battery"
- Japanese Patent No. 7093078
- "Synthesis and application of new types of electrolyte additives for rechargeable batteries"
- Japanese Patent No. 7250272
- "Synthesis and application of new types of electrolyte salt for rechargeable batteries"
- Japanese Patent No. 7250273
- "Polymer-ceramic composite electrolyte membrane"
- Japanese Patent No. 7286072
- "Solid electrolytes for all-solid-state secondary battery"
- Japanese Patent No. 7223367
- "Novel Electrolyte Additives for High-Energy-Density Lithium-ion Battery"
- Japanese Patent Patent No. 7427175
- "Graphene oxide-based hybrid electrodes for pouch type all-solid-state asymmetric supercapacitor"
- Japanese Patent Patent No. 7399407
- "Novel anode active material for rechargeable batteries"
- Japanese Patent No. 7349644
- "Novel electrolyte additive for rechargeable lithium-ion batteries"
- Japanese Patent Patent No. 7333557
- "Immersion reagent/ coating layer for separator as well as rechargeable lithium-ion batteries"
- Japanese Patent Patent No. 7438488
- "Negative electrode active material for secondary battery"
- Japanese Patent Patent No. 7394336
- "Biomass derived hard carbon as anode active material for alkaline ion batteries"
- Japanese Patent Patent No. 7436969
- "High performance all-solid-state pouch type asymmetric supercapacitor based on hybrid pseudocapacitive electrodes"
- Japanese Patent Patent No. 7458588
- "Novel cathode active material precursor, cathode active material, and catholyte for rechargeable battery"
- Japanese Patent Patent No. 7483222
- "Solid Electrolyte and Method for Producing Same , and Lithium-ion Battery."
- Japanese Patent Patent No. 7474985
- "Electrolyte Materials for lithium ion batteries"
- Japanese Patent Patent No. 7493180
- "Metal@carbonaceous materials as sulfur hosts for positive electrodes of the lithium sulfur batteries"
- Japanese Patent Patent No. 7570614
- "Novel additives, gel-state electrolytes with it and their fabrication methods for Li metal batteries"
- Japanese Patent Patent No. 7539646
- "Anode active materials, anode materials, the alkaline batteries based on them and the anode active materials preparation method"
- Japanese Patent Application No. 2021-014643
- "Cathode active materials, cathode materials, the secondary batteries based on them and the cathode active materials preparation method"
- Japanese Patent Application No. 2021-020949
- "Cathode active materials, cathode materials, the secondary batteries based on them and the cathode active materials preparation method"
- Japanese Patent Application No. 2021-132891
- "Electrolyte additives, solid-state electrolyte composition and all-solid-state lithium ion battery assembly"
- Japanese Patent Application No. 2021-145771
- "Cathode active materials, cathode materials, the secondary batteries based on them and the cathode active materials preparation method"
- Japanese Patent Application No. 2021-202012
- "Active Cathode Materials for Alkali-Ion Batteries and Its Manufacturing Method"
- Japanese Patent Application No. 2022-018888
- "Solid electrolytes for all-solid-state lithium-ion batteries and its fabrication methods"
- Japanese Patent Application No. 2022-062001
- "Cathode active materials and its preparation method for sodium ion batteries"
- Japanese Patent Application No. 2022-095279
- "Cathode active materials for sodium ion batteries and preparation process thereof"
- Japanese Patent Application No. 2023-060417
- "Anode materials for all-solid-state lithium-ion batteries and its fabrication methods"
- Japanese Patent Application No. 2023-215900
