Yet-Ming Chiang Patents & Innovation Profile — PatSnap Eureka
Yet-Ming Chiang: Patent Portfolio & Innovation Analysis
Yet-Ming Chiang is a professor of Materials Science and Engineering at the Massachusetts Institute of Technology who holds more than 1,250 patents spanning lithium-ion battery cathode materials, solid-state electrolytes, semi-solid flow electrodes, aqueous sodium-ion batteries, and metal additive manufacturing. His portfolio is primarily associated with MIT, A123 Systems, 24M Technologies, and Desktop Metal, representing a career-long programme of translating electrochemical science into manufacturable technology.
Research Citation Impact
Top 5 most-cited papers by Yet-Ming Chiang, spanning 2007–2018. Peak citation: 591 for the 2017 solid-state battery review.
Yet-Ming Chiang's Research & Patent Impact
Chiang's 298-paper publication record and 1,251+ patents span more than two decades of sustained activity across battery materials, solid-state systems, and manufacturing innovation.
Top Cited Papers by Year
Citation counts for the 5 most-cited works. The 2017 solid-state battery review (591 citations) is the most impactful single paper.
Technology Domain Breakdown
Distribution of Yet-Ming Chiang's innovation activity across five core technology domains based on patent and research themes.
Core Areas of Innovation
Yet-Ming Chiang's portfolio spans five interconnected technology domains, each reflecting a distinct commercial chapter in a career that moves systematically from laboratory discovery to manufacturable product.
Olivine Phosphate Cathode Materials
~400 patentsPatents in this domain cover LiFePO4 and derivative olivine cathode compositions, their synthesis, doping strategies, and high-rate performance engineering. This body of IP underpins A123 Systems' technical differentiation and is foundational to modern EV battery production.
- Strain accommodation in olivine-based cathodes for high-power batteries
- LiMnyFe1-yPO4 electrode engineering and phase transformation control
- Nanoscale olivine particle synthesis and coherent phase boundary management
Solid-State Electrolytes & Battery Design
~300 patentsThis domain covers garnet and sulfide solid electrolyte compositions, lithium metal anode compatibility, mechanical failure modelling, and interface engineering for all-solid-state cells. Chiang's research in this area addresses the most critical practical barriers to solid-state battery commercialisation.
- Lithium metal penetration through garnet solid electrolytes
- Electrochemical redox stability of sulfide solid electrolytes
- Semi-solid alkali metal electrodes enabling high critical current densities
Semi-Solid & Flow Electrode Architectures
~250 patentsPatents cover biphasic electrode suspensions, semi-solid electrode formulations, thick electrode architectures, and non-solvent induced phase separation for microstructure engineering. This domain forms the technical basis of 24M Technologies' manufacturing platform.
- Semi-solid lithium rechargeable flow battery electrode suspensions
- Thick electrode architectures for high energy density cells
- Non-solvent induced phase separation for electrode microstructure control
Aqueous Sodium-Ion & Multivalent Systems
~163 patentsThis domain addresses aqueous sodium-ion battery chemistries, NaTi2(PO4)3 and Na0.44MnO2 electrode materials, and high-power stationary storage applications. The work explores low-cost, water-based alternatives to conventional lithium-ion systems.
- NaTi2(PO4)3/Na0.44MnO2 high-power aqueous sodium-ion system
- High-rate capable electrode design for stationary storage
- Electrochemical kinetics in NMC and NCA cathode materials
Metal Additive Manufacturing
~138 patentsPatents in this domain cover metallic glass compositions for fused filament fabrication, 3D printing of metals as thermoplastics, and advanced materials processing for additive manufacturing. This domain reflects the technology platform of Desktop Metal, which Chiang co-founded.
- 3D printing metals like thermoplastics via fused filament fabrication
- Metallic glass compositions optimised for additive manufacturing
- Advanced materials processing for metal additive manufacturing systems
Yet-Ming Chiang's Highest-Impact Academic Works
With 298 papers in the literature record, Chiang's academic output constitutes a substantial body of prior art directly relevant to IP landscape analysis in battery materials and manufacturing.
| Title | Year | Citations | Affiliation | Link |
|---|---|---|---|---|
| Review — Practical Challenges Hindering the Development of Solid State Li Ion Batteries | 2017 | 591 ↑ | Stanford University | View → |
| Building a Better Battery | 2010 | 470 ↑ | MIT | View → |
| Towards High Power High Energy Aqueous Sodium-Ion Batteries: The NaTi2(PO4)3/Na0.44MnO2 System | 2012 | 451 ↑ | MIT | View → |
| Strain Accommodation during Phase Transformations in Olivine-Based Cathodes as a Materials Selection Criterion for High-Power Rechargeable Batteries | 2007 | 374 ↑ | MIT | View → |
| Single-particle measurements of electrochemical kinetics in NMC and NCA cathodes for Li-ion batteries | 2018 | 264 ↑ | MIT / Univ. of Michigan | View → |
| Microstructural Modeling and Design of Rechargeable Lithium-Ion Batteries | 2005 | 245 ↑ | MIT | View → |
| Lithium Metal Penetration Induced by Electrodeposition through Solid Electrolytes | 2018 | 174 ↑ | MIT | View → |
| Electrodeposition Kinetics in Li-S Batteries | 2017 | 174 ↑ | MIT | View → |
Research Literature by Yet-Ming Chiang
298 papers indexed · Three dominant research themes spanning olivine cathode science, solid-state battery design, and semi-solid electrode manufacturing innovation.
Olivine Cathode Science
Chiang's 2007 paper on strain accommodation in olivine-based cathodes (374 citations) remains a foundational reference for LiFePO4 research. Multi-decade work on phase transformations, nanoscale particle behaviour, and operando X-ray studies underpins A123 Systems' technical differentiation and is extensively cited in both academic and patent literature.
Solid-State Battery Architecture
The 2017 review on practical challenges in solid-state lithium-ion batteries (591 citations, affiliated with Stanford) is among the most-read survey articles in the field. Experimental papers on garnet electrolytes, sulfide electrochemical stability, and mechanical failure modelling reflect close involvement in this rapidly growing domain.
Flow Electrodes & Manufacturing Innovation
A distinct cluster of papers addresses redox flow batteries, semi-solid electrode suspensions, and non-solvent induced phase separation — forming the technical basis of 24M Technologies. The 2018 paper on 3D printing of metallic glasses (153 citations) extends this engineering-first mindset to Desktop Metal's additive manufacturing platform.
Patent Jurisdictions & Filing Markets
Yet-Ming Chiang's portfolio reflects a global IP strategy consistent with the international commercial ambitions of A123 Systems, 24M Technologies, and Desktop Metal across major battery and manufacturing markets.
Filing Markets
Chiang's filing strategy reflects the global commercial ambitions of his ventures. The United States is the primary jurisdiction, consistent with MIT and venture-backed companies incorporated in the US. China represents a critical secondary market given the dominant role of LiFePO4 chemistry in Chinese EV battery production — making freedom-to-operate analysis across both jurisdictions essential for any battery technology entrant.
Note: Exact per-jurisdiction patent counts were not available in the source data. Jurisdiction representation above is derived from career profile, assignee geography, and commercial filing strategy described in the PatSnap Eureka analysis. Use PatSnap Eureka for precise jurisdiction-level counts.
Why Yet-Ming Chiang's Portfolio Matters
Strategic implications for patent attorneys, in-house IP teams, R&D strategists, and EV supply chain counsel.
FTO Considerations
The domains most heavily covered by Chiang-associated patents cluster around olivine phosphate cathode materials (particularly LiFePO4 and derivatives), semi-solid electrode formulations, thick electrode architectures, and solid electrolyte interface engineering. Any new entrant or existing player developing products in these spaces should conduct systematic prior art mapping against this portfolio before filing or commercialising. The academic literature — particularly high-citation papers from 2005 to 2019 — also constitutes a substantial body of prior art relevant to patentability assessments in related domains.
Prior Art Relevance
Chiang's most-cited papers — the 2017 solid-state battery review (591 citations), the 2010 "Building a Better Battery" perspective (470 citations), the 2012 aqueous sodium-ion paper (451 citations), and the 2007 olivine cathode strain paper (374 citations) — would likely appear in any substantive novelty search across these technology domains. The 298-paper publication record spans more than two decades and maps closely onto commercial battery themes, making it a primary reference corpus for prior art analysis.
Yet-Ming Chiang: Common Questions
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References & External Sources
- Practical Challenges Hindering the Development of Solid State Li Ion Batteries (2017) — PatSnap Eureka Literature
- Building a Better Battery (2010) — PatSnap Eureka Literature
- NaTi2(PO4)3/Na0.44MnO2 Aqueous Sodium-Ion System (2012) — PatSnap Eureka Literature
- Strain Accommodation in Olivine-Based Cathodes (2007) — PatSnap Eureka Literature
- USPTO Patent Search — United States Patent and Trademark Office
- Espacenet Patent Search — European Patent Office
- PATENTSCOPE — World Intellectual Property Organization (WIPO)
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