Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

Batteries and Fuel Cells03:12

Batteries 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...
DC Battery01:21

DC 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,...
MOS Capacitor01:25

MOS 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...
MOSFET01:16

MOSFET

The Metal-Oxide-Semiconductor Field-Effect Transistor (MOSFET) plays a pivotal role in modern electronics thanks to its versatility and efficiency in controlling electrical currents. This device, also known as IGFET, MISFET, and MOSFET, has three main terminals: the Source, Drain, and Gate. MOSFETs are classified into n-channel or p-channel types based on the doping characteristics of their substrate and the source or drain regions.
In an n-MOSFET, the structure includes n-type source and drain...
Non-ohmic Devices00:51

Non-ohmic Devices

In most substances, the current flow is proportional to the voltage applied to it. A simple relationship between the values of current, voltage, and resistance is known as Ohm's law. Nonohmic devices do not exhibit a linear relationship between voltage and current. One such device is the semiconducting circuit element known as a diode. A diode is a circuit device that allows current flow in only one direction.
Consider a simple circuit consisting of a battery, a diode, and a resistor. A diode...
Microbial Fuel Cells01:23

Microbial Fuel Cells

Microbial fuel cells (MFCs) are bioelectrochemical devices that generate electricity by exploiting the metabolic processes of electrogenic bacteria. These systems provide a renewable energy source and serve as an innovative method for treating organic waste, such as wastewater.A typical MFC consists of two chambers: an anoxic (oxygen-free) compartment that houses the bacteria and an oxic (oxygen-rich) compartment that contains oxygen as the terminal electron acceptor. Many MFCs use proton...

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Magnetically levitated metasurface enabling tangible and bidirectional human-machine interaction.

Science advances·2026
Same author

Physical Anchoring-Assisted Mechanically Guided Assembly for Material-Independent 3D Mesostructures.

Small (Weinheim an der Bergstrasse, Germany)·2026
Same author

Stimulation Modalities in Wearable Haptic Systems: Single-Mode Feedback to Multiphysics Actuation.

Research (Washington, D.C.)·2026
Same author

Patterned wireless transcranial optogenetics generates artificial perception.

Nature neuroscience·2025
Same author

Smartphone-Based Immune Response Measurement Using a Colorimetric Self-Assembled Plasmonic Biosensor.

Nano letters·2025
Same author

A wireless, implantable sensor for continuous monitoring of blood leakage after endovascular aneurysm repair.

Science advances·2025

Related Experiment Video

Updated: Jul 3, 2026

Optimization of An Air-Based Heat Management System for Dusty Particulate Matter-Covered Lithium-Ion Battery Packs
10:36

Optimization of An Air-Based Heat Management System for Dusty Particulate Matter-Covered Lithium-Ion Battery Packs

Published on: November 3, 2023

Safe, high-performance, moisture-activated batteries for powering next-generation Internet-of-Things devices.

Rajaram Kaveti1,2, Akshay Bhardwaj1,2, Pei Liu3

  • 1Department of Electrical and Computer Engineering, North Carolina State University, Raleigh, NC 27606, USA.

Science Advances
|July 1, 2026
PubMed
Summary

This study presents a novel, nontoxic thin-film battery that harvests ambient moisture for power. This flexible, high-performance battery is ideal for wearable and Internet-of-Things (IoT) devices.

More Related Videos

Autonomous and Rechargeable Microneurostimulator Endoscopically Implantable into the Submucosa
08:17

Autonomous and Rechargeable Microneurostimulator Endoscopically Implantable into the Submucosa

Published on: September 27, 2018

Related Experiment Videos

Last Updated: Jul 3, 2026

Optimization of An Air-Based Heat Management System for Dusty Particulate Matter-Covered Lithium-Ion Battery Packs
10:36

Optimization of An Air-Based Heat Management System for Dusty Particulate Matter-Covered Lithium-Ion Battery Packs

Published on: November 3, 2023

Autonomous and Rechargeable Microneurostimulator Endoscopically Implantable into the Submucosa
08:17

Autonomous and Rechargeable Microneurostimulator Endoscopically Implantable into the Submucosa

Published on: September 27, 2018

Area of Science:

  • Materials Science
  • Energy Storage
  • Biomimetics

Background:

  • Conventional batteries face limitations like weight, toxicity, and inflexibility.
  • Energy harvesters provide low, variable power, unsuitable for modern devices.
  • Emerging applications in wearables, robotics, and Internet-of-Things (IoT) demand better power solutions.

Purpose of the Study:

  • To introduce a novel, nontoxic thin-film battery with enhanced performance.
  • To develop a flexible and conformable power source for IoT devices.
  • To leverage ambient moisture harvesting for stable, high-power energy storage.

Main Methods:

  • Developed a thin-film battery inspired by water harvesting techniques.
  • Incorporated a pangolin skin-mimicking design for flexibility and stretchability.
  • Conducted experimental testing and computer simulations to analyze performance.

Main Results:

  • Achieved an open-circuit voltage of ~1.6 volts and specific capacity of ~52 mAh/g.
  • Demonstrated a specific energy of ~81 mWh/g, outperforming some commercial batteries.
  • The battery functions across a wide range of environments and is highly conformable.

Conclusions:

  • The novel thin-film battery offers a sustainable and high-performance alternative to conventional batteries.
  • Its unique design and moisture-harvesting capability make it suitable for diverse IoT applications.
  • Successfully demonstrated its use in powering a wireless wearable pulse oximeter and surveillance monitor.