Stretchable Supercapacitor Technology 2026 — PatSnap Eureka
Stretchable Supercapacitor Technology: Patents, Materials & IP Signals
From CNT electrodes achieving 400% strain to self-healing hydrogels stretching 1000%, stretchable supercapacitors are powering the next generation of wearables, implantables, and soft robotics. Explore the full innovation landscape with PatSnap Eureka.
Peak Stretchability by Approach (%)
Maximum strain demonstrated across five leading electrode and electrolyte strategies.
What Are Stretchable Supercapacitors?
Stretchable supercapacitors are electrochemical energy storage devices engineered to maintain performance under significant mechanical deformation — including stretching, bending, twisting, and compression — making them foundational components for next-generation wearable electronics, implantable medical devices, and soft robotics.
Unlike conventional rigid supercapacitors, every component — electrodes, current collectors, electrolyte, and encapsulation — must sustain electrochemical functionality across repeated mechanical strain cycles. The field has evolved from early demonstrations of stretchable carbon nanotube electrodes to sophisticated systems integrating self-healing electrolytes, transparent form factors, and anti-freezing capabilities.
Among retrieved results, the field spans at least four interconnected sub-domains: stretchable carbon-based electrode systems using CNTs and graphene; conducting polymer electrodes on elastic substrates; hydrogel and organohydrogel electrolytes with self-healing or anti-freezing properties; and structural/geometric design strategies (wrinkled, crumpled, serpentine, and buckling architectures) that engineer stretchability at the device level.
Samsung's EP patent explicitly claims a full-stack stretchable supercapacitor using 3D nano-pore structured current collectors embedded in elastic polymer layers including SBS, polyurethane, and silicone-based polymers — representing one of the most structurally complete device-level patents in this dataset. For deeper IP landscape analysis, see how R&D teams use PatSnap to navigate competitive patent spaces.
Four Innovation Clusters Driving the Field
Stretchable supercapacitor innovation is organized around four distinct technical clusters, each addressing the core challenge of maintaining electrochemical performance under mechanical deformation.
Carbon Nanotube & Graphene Electrode Systems
The most extensively documented approach. CNT and graphene materials offer high electrical conductivity, large surface area, and intrinsic mechanical flexibility. Configurations include crumpled, aligned, and coaxial arrangements. Changzhou University's gold-nanoparticle-decorated MWCNT linear electrodes achieved 400% strain at 8.7 F g⁻¹ capacitance. The Air Force Research Laboratory demonstrated 75% optical transmittance with 30% biaxial strain using aligned CNT sheets.
400% strain · 75% transmittanceStructural & Geometric Engineering for Stretchability
Rather than relying on intrinsically elastic materials, this approach engineers geometric features — wrinkles, buckles, serpentines, spirals, and fractal patterns — into otherwise conventional electrode and interconnect materials. UC Berkeley developed a computational framework using out-of-plane buckling for omnidirectional stretchability. RMIT University used two-photon direct laser writing to create fractal 3D graphene microelectrodes with 1 µm resolution and 150% stretchability.
Omnidirectional · 1 µm resolutionHydrogel & Organohydrogel Electrolyte Engineering
Solid-state and gel electrolytes are essential for stretchable devices, as liquid electrolytes are incompatible with deformable enclosures. Tongji University's Laponite/graphene oxide double-crosslinked hydrogel enabled 1000% stretchability and repeatable self-healing. Beijing Institute of Technology demonstrated an anti-freezing organohydrogel (polyacrylamide/ethylene glycol/H₂SO₄) maintaining 200% stretchability at −30°C across 100 stretch cycles.
1000% strain · −30°C operationConducting Polymer & Composite Electrode Systems
Conducting polymers (polyaniline, polythiophene, polypyrrole) provide pseudocapacitive charge storage and can be deposited on flexible substrates. When combined with CNTs, graphene, or elastic polymer matrices, they form composite electrodes that are both electrochemically active and mechanically deformable. Jinan University's in-situ grown PANI on CNT/EVA film achieved 620 mF cm⁻² areal capacitance and 3000-cycle stability.
620 mF cm⁻² · 3000-cycle stabilityInnovation Signals: Performance, Geography & Timeline
Key quantitative signals extracted from patent and literature records in the PatSnap Eureka dataset, spanning 2012–2024.
Geographic Distribution of Research Output
Chinese institutions dominate publication volume; South Korea leads device-level commercial patents (Samsung EP 2021).
Innovation Timeline: Three Development Phases
Publication and patent activity across three phases: Foundational (2012–16), Development (2017–20), and Maturation (2021–24).
Where Stretchable Supercapacitors Are Being Deployed
Four primary application domains have emerged from 2012–2024 patent and literature evidence, each with distinct technical requirements and IP activity levels.
| Application Domain | Key Evidence | Technical Requirement | Status |
|---|---|---|---|
| Wearable Electronics & Health Monitoring | University of Shanghai for Science and Technology (2019): 100 cm² device, 200% stretchability, integrated solar storage for up to 20 days | Skin-conformable, waterproof, large-area scalability | Most Active |
| Implantable & Biomedical Devices | Westlake University (2021): 15.02 mF cm⁻² capacitance, confirmed biocompatibility & transparency via AAO templating | Biocompatible, transparent, stretchable simultaneously | Emerging |
| Smart Textiles & E-Textiles | Chinese Academy of Sciences (2021): Ti₃C₂Tₓ MXene fiber supercapacitors woven into sports watch belt powering LED arrays | Weavable fiber format, continuous fabrication | Active |
| Extreme-Environment Electronics | Beijing Institute of Technology (2020): Anti-freezing organohydrogel, 200% stretchability at −30°C across 100 stretch cycles | Sub-zero electrolyte stability, arctic wearable use | Niche / Growing |
| Soft Robotics Power Integration | Buckling-physics microsupercapacitor arrays (UC Berkeley, 2019) enable omnidirectional stretchability relevant to robotic actuator power | Omnidirectional strain, high cycle durability | Research Stage |
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Four Forward-Pointing Innovation Signals (2021–2024)
Based on results published from 2021 onward in this dataset, four directions signal where the field is heading.
Shape Editability & Self-Healing
University of Science and Technology of China (2022) introduced quadruple H-bond crosslinked hydrogels enabling devices to be cut, reshaped, and re-joined — with direct implications for custom-fit wearables and field-repair scenarios.
Transparent Stretchable Devices for Bioelectronics
Two 2021 results — Westlake University's AAO-templated device and Soochow University's Ni-mesh device (62% optical transmittance, 98.8% capacity retention at 30% strain) — converge on the transparent + stretchable frontier for skin-interfaced and implantable electronics.
IP Strategy Signals for R&D Teams
Samsung's EP patent on a full-stack stretchable supercapacitor with elastic polymer current collectors and 3D nano-pore architecture represents the clearest commercial IP signal in this dataset. R&D teams should monitor continuation filings and freedom-to-operate around elastic polymer layer compositions (SBS, polyurethane, silicone) and 3D nano-pore current collector structures. For structured IP analytics, PatSnap's analytics platform provides claim-level landscape mapping.
The anti-freezing/self-healing electrolyte space is relatively uncrowded in patent terms. Organohydrogels and double-crosslinked hydrogel systems capable of operating below 0°C with self-healing functionality represent a differentiated IP opportunity, particularly for defense, outdoor wearable, and cold-chain logistics applications. Beijing Institute of Technology and Tongji University hold relevant prior art that should be reviewed for claim scope. Researchers in advanced materials and chemistry will find Eureka's literature integration particularly valuable here.
Fabrication scalability remains the field's primary commercialization barrier. Most demonstrated stretchable supercapacitors in this dataset are lab-scale. Laser-printing (University of Shanghai for Science and Technology, 100 cm² in 3 minutes) and continuous braiding (Chinese Academy of Sciences, meter-scale fiber) are the most credible scale-up demonstrations. According to IEEE standards bodies, manufacturing process IP is increasingly critical for technology transfer in flexible electronics.
The transparent + stretchable + biocompatible intersection is underserved by current patents. Westlake University's AAO-template approach is the only device-level result combining all three properties — creating a white space for IP development targeting epidermal electronics and implantable neural interfaces. The NIH has identified flexible implantable electronics as a priority research area, signaling future funding and regulatory attention.
Chinese academic institutions dominate publication volume but patent commercialization pathways remain unclear. IP strategists should perform assignee-level freedom-to-operate analysis specifically for Chinese university patents, which may have technology-transfer or licensing arrangements not immediately visible from publication records. PatSnap's trust and data integrity standards ensure that Chinese patent data is comprehensively indexed and verified.
Areal Capacitance & Optical Transmittance by Key Device
Selected device-level performance metrics from literature and patent records in the PatSnap Eureka dataset.
Areal Capacitance by Device (mF cm⁻²)
PANI/CNT/EVA composite (Jinan Univ.) leads on areal capacitance; Westlake University's transparent implantable device achieves 15.02 mF cm⁻².
Optical Transmittance — Transparent Stretchable Devices
Aligned CNT sheets (AFRL, 2014) achieve the highest transmittance at 75%; Soochow Ni-mesh achieves 62% with 98.8% capacity retention at 30% strain.
Stretchable Supercapacitor Technology — key questions answered
Stretchable supercapacitors are electrochemical energy storage devices engineered to maintain performance under significant mechanical deformation — including stretching, bending, twisting, and compression — making them foundational components for next-generation wearable electronics, implantable medical devices, and soft robotics.
The most extensively documented approach uses CNT and graphene materials, which offer high electrical conductivity, large surface area, and intrinsic mechanical flexibility. Conducting polymers (polyaniline, polythiophene, polypyrrole) are also used for pseudocapacitive charge storage and can be deposited on flexible substrates.
Stretchability ranges widely by approach: gold-nanoparticle-decorated MWCNT linear electrodes achieved 400% strain; double cross-linked hydrogel electrolytes from Tongji University achieved 1000% stretchability; two-photon laser-written fractal graphene microelectrodes from RMIT achieved 150% stretchability; and the Air Force Research Laboratory demonstrated 30% biaxial strain with 75% optical transmittance.
Yes. Beijing Institute of Technology (2020) demonstrated a stretchable supercapacitor operating at -30°C using an anti-freezing organohydrogel (polyacrylamide/ethylene glycol/H₂SO₄) with in-situ grown polyaniline, maintaining 200% stretchability across 100 stretch cycles at sub-ambient temperatures.
Samsung Electronics is the only major consumer electronics OEM with a directly stretchable supercapacitor device patent in this dataset (EP, 2021), claiming elastic polymer layer architectures and 3D nano-pore current collectors. Chinese institutions account for the largest share of stretchable-specific publications, including Nankai University, Beijing Institute of Technology, Tongji University, and the Chinese Academy of Sciences.
The dominant application target is wearable electronics and health monitoring — skin-conformable sensors, flexible displays, and health-tracking patches. Additional domains include implantable and biomedical devices, smart textiles and e-textiles, and extreme-environment electronics such as outdoor wearables requiring sub-zero operation.
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References
- An Overview of Stretchable Supercapacitors Based on Carbon Nanotube and Graphene — Nankai University, 2020
- Stretchable Supercapacitor, Electronic Device and Method of Manufacturing the Same — Samsung Electronics Co., Ltd., EP 2021
- High-Performance Transparent and Stretchable All-Solid Supercapacitors Based on Highly Aligned Carbon Nanotube Sheets — Air Force Research Laboratory, 2014
- Stretchable and High-Performance Supercapacitors with Crumpled Graphene Papers — Huazhong University of Science and Technology / Duke University, 2014
- High-Performance All-Solid-State Asymmetric Stretchable Supercapacitors Based on Wrinkled MnO2/CNT and Fe2O3/CNT Macrofilms — 2016
- Miniaturized Stretchable and High-Rate Linear Supercapacitors — Changzhou University, 2017
- Stretchable Supercapacitor at -30°C — Beijing Institute of Technology, 2020
- Ultrastretchable and Superior Healable Supercapacitors Based on a Double Cross-Linked Hydrogel Electrolyte — Tongji University, 2019
- Self-Healing and Shape-Editable Wearable Supercapacitors Based on Highly Stretchable Hydrogel Electrolytes — University of Science and Technology of China, 2022
- Mechanical Designs Employing Buckling Physics for Reversible and Omnidirectional Stretchability in Microsupercapacitor Arrays — University of California, Berkeley, 2019
- Two-Photon-Induced Stretchable Graphene Supercapacitors — RMIT University, 2018
- A Self-Healable and Highly Stretchable Supercapacitor Based on a Dual Crosslinked Polyelectrolyte — City University of Hong Kong, 2015
- Stretchable Transparent Supercapacitors for Wearable and Implantable Medical Devices — Westlake University, 2021
- Transparent, Stretchable and High-Performance Supercapacitors Based on Freestanding Ni-Mesh Electrode — Soochow University, 2021
- Large-Scale Waterproof and Stretchable Textile-Integrated Laser-Printed Graphene Energy Storages — University of Shanghai for Science and Technology, 2019
- Continuous Fabrication of Ti₃C₂Tₓ MXene-Based Braided Coaxial Zinc-Ion Hybrid Supercapacitors — Chinese Academy of Sciences, 2021
- Flexible Supercapacitors Based on Stretchable Conducting Polymer Electrodes — Qingdao University of Science and Technology, 2023
- Mini Review of Reliable Fabrication of Electrode under Stretching for Supercapacitor Application — Chung-Ang University, 2022
- IEEE — Flexible Electronics and Manufacturing Standards
- NIH — Flexible Implantable Electronics Research Priority
- WIPO — Global Patent Database and IP Statistics
All data and statistics on this page are sourced from the references above and from PatSnap's proprietary innovation intelligence platform. This landscape is derived from a limited set of patent and literature records retrieved across targeted searches and represents a snapshot of innovation signals within this dataset only.
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