Related Experiment Video
Updated: Jul 15, 2026
07:50
A Fabrication Method for Highly Stretchable Conductors with Silver Nanowires
Published on: January 21, 2016
9.9K
Deformation-tolerant, wireless-charging microbatteries for seamlessly integrated omnidirectional stretchable
Ying Wang1,2, Yang Zhao2, Li Yu3
1Key Laboratory of Organic Optoelectronics & Molecular Engineering of Ministry of Education, State Key Laboratory of Flexible Electronics Technology, Department of Chemistry, Tsinghua University, Beijing 100084, China.
Science Advances
|February 19, 2025
Summary
We developed new stretchable wireless-charging microbatteries (MBs) that seamlessly integrate into flexible electronics. These deformation-tolerant MBs offer significantly higher power and energy densities for advanced electronic devices.
Area of Science:
- Materials Science
- Electrical Engineering
- Energy Storage
Background:
- Integrating microbatteries (MBs) into flexible electronics is challenging due to structural and material limitations.
- Existing in-plane MBs lack the necessary compatibility and mechanical stability for complex configurations.
Purpose of the Study:
- To develop novel stretchable, wireless-charging MBs with enhanced compatibility and mechanical robustness.
- To improve power and energy densities for advanced flexible electronic systems.
Main Methods:
- Utilized an omnidirectional stretch-contraction strategy and mask-assisted printing for MB fabrication.
- Engineered dual-plating MBs with strain-induced folding structures and a no-active-material design.
Main Results:
- Achieved MBs with reliable deformation-tolerant capabilities, sustaining ~200% omnidirectional strains.
- Demonstrated an order of magnitude increase in power and energy densities compared to existing in-plane MBs.
- Successfully integrated MBs into wirelessly charging stretchable display circuits and intelligent electronic skin.
Conclusions:
- The developed MBs offer exceptional compatibility and elastic properties for seamless integration into flexible electronics.
- These MBs enable advanced applications like wirelessly charging stretchable displays and electronic skin capable of sensing complex stimuli.
Related Concept Videos
03:12Batteries and Fuel Cells
A battery is a galvanic cell that is used as a source of electrical power for specific applications. Modern batteries exist in a multitude of forms to accommodate various applications, from tiny button batteries such as those that power wristwatches to the very large batteries used to supply backup energy to municipal power grids. Some batteries are designed for single-use applications and cannot be recharged (primary cells), while others are based on conveniently reversible cell reactions that...
01:02Electromotive Force
Electromotive force (emf) is the force that causes current to flow from a higher to a lower potential. The term "electromotive force" is used for historical reasons, even though emf is not a force at all.
Any circuit with a constant current must contain an emf-producing source. Examples of emf sources include batteries, electric generators, solar cells, thermocouples, and fuel cells. All these sources transform energy of some kind (mechanical, chemical, thermal, and so on) into electric...
Any circuit with a constant current must contain an emf-producing source. Examples of emf sources include batteries, electric generators, solar cells, thermocouples, and fuel cells. All these sources transform energy of some kind (mechanical, chemical, thermal, and so on) into electric...
01:21DC Battery
A conductor needs to be a component of a path that creates a closed loop or full circuit to have a continuous current flowing through it. A current starts to flow if an electric field is created inside an isolated conductor that is not part of a full circuit. The conductor quickly develops a net positive charge at one end and a net negative charge at the other. These charges generate an electric field opposite the direction of the applied electric field, which reduces the current. Eventually,...
01:30Potentiometer
Voltage and current measurements using a standard voltmeter and ammeter alter the circuit being measured either by drawing or resisting the current flow, which introduces uncertainties in the measurements. Null measurements balance the voltages so that no current flows through the measuring device and, therefore, no alterations occur in the measured circuit.
Suppose the emf of a battery needs to be measured. If the battery is directly connected to a standard voltmeter, the measured quantity is...
Suppose the emf of a battery needs to be measured. If the battery is directly connected to a standard voltmeter, the measured quantity is...
01:11P-N junction
A p-n junction is formed when p-type and n-type semiconductor materials are joined together. At the interface of the p-n junction, holes from the p-side and electrons from the n-side begin to diffuse into the opposite sides due to the concentration gradient. This diffusion of carriers leads to a region around the junction where there are no free charge carriers, known as the depletion region. The charge density within the depletion region for the n-side and p-side can be described by the...
01:25MOS Capacitor
A Metal-Oxide-Semiconductor (MOS) capacitor is a fundamental structure used extensively in semiconductor device technology, particularly in the fabrication of integrated circuits and MOSFETs (metal-oxide-semiconductor field-effect transistors). The MOS capacitor consists of three layers: a metal gate, a dielectric oxide, and a semiconductor substrate.
The metal gate is typically made from highly conductive materials such as aluminum or polysilicon. Beneath the metal gate lies a thin layer of...
The metal gate is typically made from highly conductive materials such as aluminum or polysilicon. Beneath the metal gate lies a thin layer of...