Halide Solid Electrolytes for Li-ion Batteries Patent Landscape 2024
Halide solid-state electrolytes are ideal for solid-state batteries
In recent decades, solid-state lithium-ion batteries have attracted attention due to their significant safety and high energy density. Solid-state electrolytes (SEs), with fast ion transport and excellent stability, are critical to the commercialization of this promising next-generation lithium-ion battery. Therefore, inorganic solid-state electrolytes have been extensively explored, including sulfide and oxide electrolytes. Unfortunately, neither electrolyte can achieve the optimal balance between conductivity and stability. For example, oxides have high grain boundary impedance, while sulfides have poor stability. Halide-based solid-state electrolytes are increasingly being seen as one of the most promising options for solid-state lithium-ion batteries due to their good room-temperature ionic conductivity (>10⁻³ S/cm), compatibility with oxide cathode materials, excellent chemical stability, and scalability.
Knowmade, a leading French intellectual property research firm, has been monitoring patent developments in the field of solid-state lithium-ion batteries for many years, and Knowmade has seen a growing interest in halide solid-state electrolytes. As of September 2023, there are more than 330 patent families related to the application of halide solid electrolyte materials in lithium-ion batteries. Manufacturers in the solid-state battery industry must now pay close attention to these emerging materials from multiple perspectives such as technology, competition, and intellectual property (IP).
Against this backdrop, Knowmade has released this latest patent panorama report, focusing on halide solid-state electrolyte materials for lithium-ion batteries. In this report, Knowmade's analysts screened and analyzed more than 860 granted patents and patent applications from more than 330 patent families (invention patents) filed by more than 110 patent applicants. This report provides a detailed analysis of the current status of patents related to halide solid electrolyte materials, as well as current patents of interest. This new report is a good complement to Knowmade's previous patent analysis report on solid-state batteries and patent dynamic monitoring report.
Trends in patent applications for halide solid electrolytes
Understand key trends, patent positions and patent portfolios of key patent assignees
The patent landscape analysis should reflect the manufacturer's strategic vision to enter the solid-state lithium-ion battery market and grow the business. In this report, Knowmade's analysts provide a comprehensive overview of the patent competition landscape in the field, as well as the latest technological developments. The report covers patent developments and key trends in patent applications, patentees, filing countries and patented technologies. This report gives a picture of the patent leaders, most active patent applicants and new entrants in the field. The report also reveals the vendors that have kept a low profile in the space.
What are the technologies for patent protection?
Patent leadership of the main patentee of halide solid electrolytes
In this report, Knowmade analyzes the patent portfolios of major patent assignees, their technologies and application priorities, and provides an overview of the current status and trends of patented technologies and their applications. In addition, the report examines the technology and strategic directions of leading players and new entrants in the field.
Knowmade has manually indexed and categorized the material composition claimed by these patents (LiMX4, Li3MX6, halide materials alone, core-shell halide materials, halide materials mixed with other materials), manufacturing methods (mechanochemical, eutectic, liquid phase), as well as the challenges/solutions disclosed by the invention and the optimal material/ionic conductivity at room temperature.
A handful of patent leaders and numerous new entrants
Analysis of patents by major patent owners
Panasonic/Sanyo is a leader in the field of patents for halide solid-state electrolytes, challenged by Samsung, Guolian Research Institute, SVOLT, Saint-Gobain and TDK. In addition, through patent analysis, Knowmade also found more than 60 new patent entrants who filed the first batch of halide-related patents in 2022 or later, such as: EVE, Korea Electronics Technology Research Institute (KETI), Langu New Energy, Qingtao Energy, Global Graphene, etc. It is worth noting that 80% of new entrants in this field are from China. The report highlights the patent portfolios owned by the major patent owners in this field (Panasonic, Samsung, Saint-Gobain, Guolian Research Institute, Honeycomb Energy, EVE, University of Western Ontario, TDK, Toyota, etc.). The report provides each company with an overview of its patent portfolios related to halide solid electrolytes and describes their core patented technologies.
The material composition and technical challenges involved in the patent portfolio
High-value patent database
This report also provides an Excel patent database containing all granted patents and patent applications covered by this study. This high-value patent database supports multi-field searches, including patent publication numbers, hyperlinks to original documents, priority dates, titles, abstracts, assignees, current legal status, and manually indexed technologies and applications.
Key messages of the report:
- More than 90 pages of electronic PDF reports with rich patent analysis charts;
- A high-value Excel patent database containing more than 300 patent families covered by the report's analysis, including classification indexing and hyperlinks to online updates (legal status, documents, etc.);
- Global patent trends, including trends in the timing of published patents, the countries to which patents are filed, and the legal status of patents;
- Patent analysis of major patentees and new applicants at different stages of the supply chain;
- The patent position of the main institution and the relative strength of its patent portfolio;
- Focused on Chinese patent applicants and their patent portfolio;
- Patent classification analysis broken down by material composition and technical challenges.
If you need a sample report of "Patent Panorama Analysis of Halide Solid Electrolytes for Lithium Battery Applications-2024 Edition", please contact Wang Yi of MEMS Consulting, email :wangyi#memsconsulting.com (#换成@)