Market Context — Why This Technology, Why Now

The accelerating global energy transition demands innovative battery solutions beyond current lithium-ion capabilities. With electric vehicle adoption surging and renewable energy integration requiring robust grid-scale storage, there's immense pressure to develop batteries offering higher energy density, longer cycle life, and improved safety. This technology directly supports these trends by enabling the practical deployment of lithium-air batteries, which could unlock unprecedented performance for sustainable mobility and resilient energy infrastructure.

Key Competitive Advantages
01

Significantly enhances lithium-air battery charge/discharge efficiency by over 20% through specific electrolyte composition and concentration control.

02

Enables performance improvement with a simple method of electrolyte concentration adjustment and organic additive, facilitating integration into existing battery manufacturing processes.

03

Demonstrates high technical uniqueness with only three prior art documents cited by examiners, contributing to early market share acquisition.

Market Opportunity
EV and Next-Gen Mobility
$15B–$25B globally (AI est.)
Extending EV range and reducing weight are key consumer purchasing factors. This technology could break existing battery limits and significantly boost market competitiveness.
Major automotive OEMs EV battery manufacturers Electric vehicle component suppliers
Stationary Energy Storage
$8B–$12B globally (AI est.)
With expanding renewable energy adoption, large-capacity, long-life storage is crucial for absorbing generation fluctuations and stabilizing the grid. This technology could be central to this need.
Utility-scale battery developers Home energy storage system providers Grid infrastructure companies
Drones and Aviation
$3B–$3.5B globally (AI est.)
Increased flight time and payload capacity are essential for commercial drones and eVTOL aircraft. High energy density from this technology could significantly transform these markets.
Aerospace battery manufacturers Commercial drone developers Urban Air Mobility (UAM) innovators
IP Defensibility — Why Competitors Can't Replicate This
What This Patent Covers

This patent protects a specific electrolyte composition for lithium-air batteries, defining the concentration range of sulfolane and lithium nitrate, and options for organic additives across 8 claims. The robust scope, established through successful responses to examiner objections, ensures high technical uniqueness and makes circumvention by competitors challenging, providing strong protection for licensees.

Competitive White Space

This patent focuses on electrolyte composition. Licensees could develop complementary IP in advanced electrode materials, novel cell architectures, or integrated battery management systems without conflict.

Economic Impact
~$1M/year estimated cost reduction per facility (est.)
estimated ROI · USD · AI analysis
ROI Calculation Logic

Assuming a 20% improvement in lithium-air battery energy efficiency, manufacturing costs could be reduced by approximately 15% by enabling smaller batteries and simpler cooling systems. This equates to a cost reduction of ~$100/battery (AI est.) (from ~$667/battery (AI est.) × 15%). For a company producing 1 million batteries annually, this could result in an estimated annual cost reduction of ~$1M (AI est.). This cost competitiveness could enhance a licensee's advantage in the next-generation battery market.

Speed to Market
6× faster than in-house development
This technology optimizes a specific electrolyte composition and concentration range, eliminating the need for fundamental redesign of key components like electrodes or separators. This facilitates easy integration into existing lithium-air battery development platforms. Since basic material selection and concentration range knowledge are already established, licensees avoid starting R&D from scratch, enabling immediate transition to the product development phase. This could shorten the approximately 3 years required for in-house development to about 0.5 years through patent licensing, significantly accelerating time-to-market.
Competitive Positioning

X: Energy Density Efficiency
Y: Cycle Life Stability

Business Models & Applications
🤝 Technology Licensing
Licensees acquire the right to implement this technology, integrating it into their battery product development and manufacturing. This model maximizes revenue through royalties.
🔬 Joint Development & JV Establishment
Collaborate with the National Research and Development Agency to accelerate R&D for lithium-air battery commercialization, enabling early market entry.
📦 Product & Component Supply
Manufacture and sell the electrolyte itself, or battery cells containing it, to automotive and energy storage system manufacturers.
Adjacent Application Opportunities
🚗 EV & Mobility
Long-Range Batteries for Next-Gen EVs
Applying this technology to EV batteries could significantly extend driving range, potentially doubling current capabilities, and reduce reliance on charging infrastructure. It could also contribute to vehicle lightweighting and overall performance improvement.
🏠 Energy Storage
Smart Grid-Ready Stationary Storage
As renewable energy adoption grows, this technology's high-capacity, long-life stationary batteries are crucial for stabilizing power grids. It could support applications from residential to industrial scale, offering enhanced grid resilience.
🚀 Aerospace
Lightweight, High-Power Sources for Drones & Aircraft
Battery weight and capacity directly impact flight time for drones and electric aircraft. This technology could provide lightweight, high-power sources, potentially enabling 2x longer flight durations or increased payload capacity for logistics and air mobility.
Integration Roadmap — Estimated 23-Month Deployment
Phase 1: Basic Evaluation & Characterization
Duration: 5 months
Evaluate basic performance (energy efficiency, cycle life) by combining this technology's electrolyte with the licensee's existing electrode materials and cell structures.
Phase 2: Prototype Development & Optimization
Duration: 9 months
Based on evaluation results, fine-tune electrolyte composition and concentration to match licensee's product specifications, then develop and optimize practical prototype cells.
Phase 3: Mass Production Study & Product Integration
Duration: 9 months
Examine mass production processes for batteries using the optimized electrolyte, and formulate strategies for integration into the licensee's final products (EVs, storage batteries) and market launch.
Technical Feasibility
This technology, being at the material level (sulfolane, lithium nitrate, and specific organic additives), is relatively easy to integrate into existing battery manufacturing processes for electrolyte preparation. The electrolyte composition and concentration adjustments described in the claims are achievable with common chemical synthesis methods, indicating high technical feasibility for adoption without significant capital investment.
Success Scenario
Upon adopting this technology, licensees could potentially more than double the energy density of lithium-air batteries compared to existing batteries. This could significantly extend EV driving range from the current 300km to over 600km, reducing reliance on charging infrastructure. For drones, it is estimated to dramatically increase flight time, enabling the creation of new service models.
Patent Record
APPLICATION NO.
特願2020-541105
REGISTRATION NO.
7050361
FILING DATE
2019/08/16
GRANT DATE
2022/03/31
EXPIRATION DATE
2039/08/16
PATENT HOLDER
国立研究開発法人物質・材料研究機構
Examination History
2021年02月02日
出願審査請求書
2022年02月01日
拒絶理由通知書
2022年02月02日
意見書
2022年02月02日
手続補正書（自発・内容）
2022年03月08日
特許査定