Solid-State Li-ion Batteries with Inorganic Solid Electrolytes Patent Landscape 2021
使用無機固體電解質的固態電池在開發更安全的電動汽車（EV）鋰離子電池中佔有重要地位，具有自主性和高速性。固態電池分為 "薄膜固態電池" 和 "塊狀固態電池" 兩種。在薄膜固態電池中得到驗證的薄膜技術方法不能按原樣應用於塊狀固態電池。因此，需要開發新的工藝和材料來製造滿足市場需求（性能、穩定性、成本）的塊狀固態電池。目前，為了提高塊狀固態電池的性能，正在進行三類研究和開發：固體電解質性能的改進、電極/電解質界面的改進以及適合工業生產的材料/電池組件製造工藝。
最近，很多公司都宣佈了固態電池的原型，該原型將在 2025 年實現商業化並安裝在電動汽車上。然而，哪些固體電解質表現最好，最新的技術發展趨勢是什麼，哪些公司在供應鏈中處於最有利的地位，仍然存在許多問題。
本報告分析了與使用無機固體電解質的固體鋰離子電池相關的專利（超過 7,300 個專利族（發明），總數超過 14,400 個）和全世界 IP（知識產權）的趨勢。活動趨勢-專利公開數量趨勢、專利申請國家排名、法律地位等-、主要專利受讓人排名、新進入者的動向、供應鍊和電解液類型（按類型調查專利分類） (無機、無機/聚合物)/不定電解質、分領域IP活動的詳細趨勢、主要公司的IP組合等，並在Excel工作表中匯總所有專利的詳細信息。
AGC、Albemarle、 Alps Electric、Amperex Technology/TDK、Asahi Kasei、BASF、Belenos Clean Power、Blue Solutions/Bolloré、Bosch/Seeo、BYD、Daiso、DKS、Dow/Corning、FDK、Fujifilm、Fujitsu、Furukawa、GS Yuasa、GLESI (Guilin Electrical Equipment Scientific Research Institute)、Hitachi Chemical、Hitachi Maxell、Honda、Honeycomb Energy、Huawei、Hydro Quebec、Hyundai/Kia、Idemitsu Kosan、Ionic Materials、Johnson Matthey、JSR、LG Chem、Lionano、Lishen、Lithium Werks/Valence Technology、Mitsubishi Chemical、Mitsubishi Materials、Mitsui Chemicals、Murata/Sony、Nakajima Industry、NGK、Nippon Chemical Industrial、Nippon Electric Glass、Nippon Shokubai、Nippon Soda、Nissan、NOF、Nohms Technologies、Ohara、Optimumnano Energy、Panasonic/Sanyo、Polyplus Battery、Qingtao Energy、Quantumscape、Saft/Total、Samsung Electronics、Samsung SDI、Schott、Seiko、Shin Etsu Chemical、Sila Nanotechnologies、Solid Power、Solvay、Sumita Optical Glass、Sumitomo Chemical、Sumitomo Metal Mining、Toho Titanium、Toray Industries、Toshiba、Toyota、Wildcat Discovery Technologies、Yuhuang Chemical、Zeon、CEA、CNRS、FZ. Juelich、KAIST、MIT、NIAIST、NIMS、Osaka University、Tokyo Institute of Technology、University of Chicago、University of Colorado、University of Michigan、University Tohoku、等
Japanese companies have dominated the patent landscape, but the last 3 years have seen an explosion in Chinese patenting activity, while automakers and numerous pure-play newcomers are entering the game.
Solid-state batteries with inorganic solid electrolytes hold a key position in the booming developments to get safer Li-ion batteries for electrical vehicles (EV) with greater autonomy and maximum speed. Solid-state batteries can be classified into two categories: thin-film solid-state batteries and "bulk" solid-state batteries. The thin-film technology approach proven for thin-film solid-state batteries is not directly applicable for bulk solid-state batteries. New processes and materials therefore have to be developed to get bulk solid-state batteries up to market requirements (performance, stability, cost). There are currently three main axes for development to enhance bulk solid-state battery performance: improve solid electrolyte performances; improve the electrode/electrolyte interface; and develop material/cell assembly manufacturing processes compatible with industrial production.
Many companies have recently presented solid-state battery prototypes and announced their commercialization and integration in electric vehicles by 2025. However, many questions remain: which solid electrolyte has the most promising performance? What are the most recent technological developments? Who has the best position across the supply chain?
In this context, Knowmade is releasing a new patent landscape report covering the whole value chain of solid-state Li-ion batteries with inorganic solid electrolytes from electrolyte materials to electrodes and battery cells. Patent landscape analysis is the perfect complement to market research, to fully comprehend the competitive landscape and technology roadmap, keep abreast of cutting-edge technology developments, anticipate future technology adoption, and understand the different competitors' strategies. This kind of patent landscape report reveals the companies, technical solutions and strategies not identified through standard market analysis.
Knowmade's analysts have selected and analyzed more than 14,400 patent filings grouped into 7,300+ patent families (inventions) related to solid-state Li-ion batteries with inorganic solid electrolytes. In this report, we reveal the main IP trends, key patented technologies, recent development trends, key IP players and newcomers, their strategies regarding inorganic solid electrolyte materials, and their IP strategies and strengths by supply chain segment and inorganic electrolyte material.
We have identified more than 1,000 different entities that have filed patent applications related to inorganic-based solid-state Li-ion batteries. The report provides a clear overview of the most active patent assignees as well as a presentation of newcomers to the patent landscape. Furthermore, patent segmentation reveals the IP position of patent assignees by supply chain segment (electrolyte materials, electrodes, battery cells) through a detailed analysis of their patent portfolios. We also provide insights into the key players' patented technologies, their IP strategy, and their ability to limit other firms' patenting activity and/or freedom-to-operate. The benchmarking of patent assignees is evaluated by supply chain segment, on the basis of their IP portfolio size, prior-art contribution, geographical coverage of the IP portfolio, and enforceability of their patents. A special focus is placed on the main IP collaborations (co-filings, license agreements, transfer of IP rights) related to solid-state Li-ion batteries with inorganic solid electrolytes.
All patents selected for this study have been categorized by supply chain segment (electrolyte material, electrode, battery cells), electrolyte type (inorganic/polymer, inorganic) and inorganic electrolyte material (argyrodite, Thio-LISICON, sulfide glass ceramic, oxide glass ceramic, perovskite, anti-perovskite, LISICON, garnet, NASICON, hydride). For each supply chain segment, this report includes a time-evolution of patent applications, main and key patent assignees, newcomers, and a description of key and recently patented technologies. An understanding of the current technical challenges addressed in the patents is also presented.
The report provides a detailed analysis of a selection of key players: Toyota, Samsung, LG Chem, Panasonic/Sanyo, Idemitsu Kosan, Fujifilm, Bosch/SEEO, Murata/Sony, Hyundai/Kia, QuantumScape, QingTao Energy Development, SVOLT, and OHARA. For each player, we summarize their IP portfolio, highlight their strengths and weaknesses by segment, identify their key patents and provide information about their recent IP developments.
This report also includes an Excel database with the 7,300+ patent families (inventions) analyzed in this study. This useful patent database allows for multi-criteria searches and includes patent publication numbers, hyperlinks to an updated online database (original documents, legal status, etc.), priority date, title, abstract, patent assignees, patent's current legal status, and segments (electrolyte materials, electrodes, battery cells, inorganic, inorganic/polymer, sulfide glass ceramics, Thio-LISICON, argyrodite, oxide glass ceramics, NASICON, perovskite, garnet, anti-perovskite, hydride, etc.).
AGC, Albemarle, Alps Electric, Amperex Technology/TDK, Asahi Kasei, BASF, Belenos Clean Power, Blue Solutions/Bolloré, Bosch/Seeo, BYD, Daiso, DKS, Dow/Corning, FDK, Fujifilm, Fujitsu, Furukawa, GS Yuasa, GLESI (Guilin Electrical Equipment Scientific Research Institute), Hitachi Chemical, Hitachi Maxell, Honda, Honeycomb Energy, Huawei, Hydro Quebec, Hyundai/Kia, Idemitsu Kosan, Ionic Materials, Johnson Matthey, JSR, LG Chem, Lionano, Lishen, Lithium Werks/Valence Technology, Mitsubishi Chemical, Mitsubishi Materials, Mitsui Chemicals, Murata/Sony, Nakajima Industry, NGK, Nippon Chemical Industrial, Nippon Electric Glass, Nippon Shokubai, Nippon Soda, Nissan, NOF, Nohms Technologies, Ohara, Optimumnano Energy, Panasonic/Sanyo, Polyplus Battery, Qingtao Energy, Quantumscape, Saft/Total, Samsung Electronics, Samsung SDI, Schott, Seiko, Shin Etsu Chemical, Sila Nanotechnologies, Solid Power, Solvay, Sumita Optical Glass, Sumitomo Chemical, Sumitomo Metal Mining, Toho Titanium, Toray Industries, Toshiba, Toyota, Wildcat Discovery Technologies, Yuhuang Chemical, Zeon, CEA, CNRS, FZ. Juelich, KAIST, MIT, NIAIST, NIMS, Osaka University, Tokyo Institute of Technology, University of Chicago, University of Colorado, University of Michigan, University Tohoku, etc.