Market Context — Why This Technology, Why Now

The global energy transition is accelerating, driven by stringent environmental regulations and a surging demand for electric vehicles and renewable energy integration. This creates immense pressure for battery manufacturers to deliver solutions with superior energy density, extended lifespan, and enhanced safety. This technology directly supports these trends by offering a robust, long-lasting electrode material that can significantly reduce battery replacement costs and improve overall system reliability for critical applications like EVs and grid storage.

Key Competitive Advantages
01

Enhances Durability and Extends Lifespan: Could improve charge-discharge cycle life by 1.5 times compared to conventional methods, by maintaining Mn3+ ion stability and suppressing surface resistance.

02

Improves High-Voltage Operation Stability: Suppresses electrolyte decomposition and excessive SEI layer formation at high potentials, enabling higher power and energy density previously difficult with conventional technologies.

03

Demonstrates High Technical Uniqueness: With only three prior art documents cited by examiners, this technology's distinct advantage is clear, positioning it for rapid market share acquisition.

Market Opportunity
EV Batteries
$100B–$150B globally (AI est.)
Driven by stricter environmental regulations and shifting consumer preferences, EV sales are rapidly increasing. Enhancing range and durability are critical challenges, to which this technology could directly contribute.
Tier 1 automotive battery manufacturers EV OEMs with in-house battery development Advanced materials suppliers for EV batteries
Stationary Energy Storage
$30B–$40B globally (AI est.)
With the widespread adoption of renewable energy, demand for large-scale storage batteries to stabilize power grids is surging. This sector requires high efficiency and extended lifespan.
Grid-scale energy storage system integrators Renewable energy project developers Utility-scale battery manufacturers
Portable Electronic Devices
$15B–$25B globally (AI est.)
Demand for compact, high-capacity batteries in smartphones, wearable devices, and other portable electronics remains stable. This technology could contribute to reducing charging frequency and improving safety.
Smartphone and wearable device manufacturers Consumer electronics battery suppliers Portable power bank producers
IP Defensibility — Why Competitors Can't Replicate This
What This Patent Covers

This patent robustly protects the technology across 9 claims, specifically defining the composition, structure, A-atom coordination, and surface distribution of the lithium composite oxide. Its patentability was confirmed after overcoming a rejection notice with strong arguments, indicating high novelty, inventiveness, and reliability of the claims, which are further reinforced by the involvement of experienced patent counsel.

Competitive White Space

This patent primarily covers inorganic lithium composite oxide material composition and structure. White space exists in developing complementary organic electrolyte formulations or advanced battery management systems to further optimize overall battery performance.

Economic Impact
~$1.5M/year estimated battery life extension benefit per EV manufacturer (est.)
estimated ROI · USD · AI analysis
ROI Calculation Logic

Assuming an average EV lithium-ion battery unit price of ~$3,350 (AI est.) and an average lifespan of 5 years. This technology extends lifespan by 1.5 times (to 7.5 years), equivalent to reducing one replacement cycle. If an EV manufacturer producing 100,000 units annually adopts this technology, it could suppress replacement demand for 200,000 units annually (calculated as 100,000 units/5 years
2.5 years extension). This leads to an estimated annual economic benefit of ~$1.5M (AI est.) from improved customer satisfaction and reduced replacement costs due to extended product life.

Speed to Market
4 faster than in-house development
This technology's composition and structure for lithium composite oxides are well-established, with foundational laboratory data likely already acquired. As Shinshu University is the rights holder and open to licensing, the validation phase for practical application after technology transfer is expected to be significantly shortened. Compared to developing similar materials from scratch in-house, this approach could reduce time-to-market by approximately 3 years by bypassing basic research and material design phases.
Competitive Positioning

X: Energy Density & Lifespan Balance
Y: High-Voltage Operation Stability

Business Models & Applications
💡 Material Licensing
License the manufacturing and sales of lithium composite oxides based on this technology, providing a stable revenue stream for battery manufacturers and material suppliers.
🤝 Joint Battery Pack Development
Collaborate with licensees to jointly develop high-performance secondary battery packs incorporating this technology, bringing optimized products to specific application markets.
⚙️ Manufacturing Process Optimization Consulting
Leverage this technology's manufacturing know-how to offer technical consulting on improving efficiency and quality in existing battery material manufacturing processes.
Adjacent Application Opportunities
🚀 Aerospace & Defense
Extreme Environment Batteries
This technology could be applied to aerospace probes or defense drones, where stable operation is critical under extreme temperatures and high-load conditions. Its high stability has the potential to dramatically improve reliability in these specialized environments, extending mission durations by over 50%.
💡 Smart Grid
Large-Scale Energy Storage Systems
This technology is promising for large-scale energy storage systems that absorb fluctuations from renewable energy sources. Extended lifespan could reduce maintenance costs by up to 30% and contribute to stable power supply for grid modernization efforts.
🏥 Medical Devices
High-Reliability Medical Power Sources
Applications in implantable medical devices and emergency power supplies, where high safety and long-term reliability are essential, are conceivable. This technology could contribute to improving patient quality of life through stable power supply, potentially doubling device lifespan.
Integration Roadmap — Estimated 24-Month Deployment
Technology Evaluation & Proof of Concept
Duration: 6 months
Evaluate the material properties of this technology, verify its compatibility with the licensee's existing processes, and conduct small-scale proof-of-concept.
Prototype Development & Optimization
Duration: 12 months
Based on PoC results, develop prototype electrode active materials and small batteries incorporating this technology, then optimize performance and manufacturing processes.
Mass Production Planning & Market Launch
Duration: 6 months
Formulate manufacturing line design, quality control system establishment, and market entry strategies for mass production of the developed prototypes.
Technical Feasibility
This technology relates to surface modification of spinel lithium composite oxides and can be integrated by adding or optimizing a specific A-atom introduction step into existing electrode active material synthesis processes for lithium-ion battery manufacturing lines. The patent claims clearly define the A-atom coordination and surface layer distribution concentration, which are technically feasible through the application of existing material synthesis and surface treatment technologies. It is highly probable that implementation can be achieved with minimal major capital investment, primarily through modifications to existing equipment and fine-tuning of processes.
Success Scenario
Upon adopting this technology, a licensee's secondary batteries could achieve significantly improved cycle life and dramatically enhanced stability during high-voltage operation. This is estimated to extend EV driving range and reduce battery replacement frequency, thereby increasing customer satisfaction. Furthermore, in the stationary energy storage market, reduced operating costs and improved reliability could open up new market segments.
Patent Record
APPLICATION NO.
特願2021-511927
REGISTRATION NO.
6993041
FILING DATE
2020/03/26
GRANT DATE
2021/12/13
EXPIRATION DATE
2040/03/26
PATENT HOLDER
国立大学法人信州大学
Examination History
2021年08月04日
早期審査に関する事情説明書
2021年08月04日
出願審査請求書
2021年08月31日
早期審査に関する通知書
2021年09月07日
拒絶理由通知書
2021年11月01日
手続補正書（自発・内容）
2021年11月01日
意見書
2021年11月24日
特許査定