Skip to main page content
U.S. flag

An official website of the United States government

Dot gov

The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before sharing sensitive information, make sure you’re on a federal government site.

Https

The site is secure.
The https:// ensures that you are connecting to the official website and that any information you provide is encrypted and transmitted securely.

Access keys NCBI Homepage MyNCBI Homepage Main Content Main Navigation
Review
. 2022 Oct 18;12(20):3662.
doi: 10.3390/nano12203662.

Modern Advances in Magnetic Materials of Wireless Power Transfer Systems: A Review and New Perspectives

De'an Wang  1 , Jiantao Zhang  1 , Shumei Cui  1 , Zhi Bie  1 , Kai Song  1 , Chunbo Zhu  1 , Milyaev Igor Matveevich  2
Affiliations
Review

Modern Advances in Magnetic Materials of Wireless Power Transfer Systems: A Review and New Perspectives

De'an Wang et al. Nanomaterials (Basel). .

Abstract

The magnetic coupling resonant wireless power transfer (MCR-WPT) system is considered to be the most promising wireless power transfer (WPT) method because of its considerable transmission power, high transmission efficiency, and acceptable transmission distance. For achieving magnetic concentration, magnetic cores made of magnetic materials are usually added to MCR-WPT systems to enhance the coupling performance. However, with the rapid progress of WPT technology, the traditional magnetic materials gradually become the bottleneck that restricts the system power density enhancement. In order to meet the electromagnetic characteristics requirements of WPT systems, high-performance Mn-Zn and Ni-Zn ferrites, amorphous, nanocrystalline, and metamaterials have been developed rapidly in recent years. This paper introduces an extensive review of the magnetic materials of WPT systems, concluding with the state-of-the-art WPT technology and the development and application of high-performance magnetic materials. In addition, this study offers an exclusive reference to researchers and engineers who are interested in learning about the technology and highlights critical issues to be addressed. Finally, the potential challenges and opportunities of WPT magnetic materials are presented, and the future development directions of the technology are foreseen and discussed.

Keywords: magnetic coupler; magnetic material; nanocrystalline; wireless power transfer.

PubMed Disclaimer

Conflict of interest statement

All co-authors have seen and agree with the contents of the manuscript and there is no financial interest to report. We certify that the submission is original work and is not under review at any other publication.

Figures

Figure 1
Figure 1
Classification of wireless power transfer technologies.
Figure 2
Figure 2
The performance of different types of wireless power transfer technologies in terms of power, frequency and distance.
Figure 3
Figure 3
Components and fundamentals of the US-WPT system.
Figure 4
Figure 4
Components and fundamentals of the OWPT system.
Figure 5
Figure 5
Components and fundamentals of the EC-WPT system.
Figure 6
Figure 6
Components and fundamentals of the MCR-WPT system.
Figure 7
Figure 7
Composition of the MCR–WPT system and its magnetic coupler.
Figure 8
Figure 8
Research progress and a brief history of soft magnetic materials.
Figure 9
Figure 9
The UUV WPT magnetic coupler and its Fe-based nanocrystalline cores presented in [194].
Figure 10
Figure 10
The joint development history of metamaterials and WPT technology.
Figure 11
Figure 11
Schematic diagram of the magnetization principle of the magnetic core.
Figure 12
Figure 12
Schematic diagram of the magnetization principle of the magnetic core.
Figure 13
Figure 13
Planar circular magnetic coupler reluctance model.
Figure 14
Figure 14
Magnetic circuit optimization of the magnetic coupler.
Figure 15
Figure 15
Distribution of magnetic field lines before and after aggregated optimization.
Figure 16
Figure 16
Distribution of magnetic field lines before and after optimization.
Figure 17
Figure 17
Electromagnetic shielding effectiveness analysis diagram of Moser’s theory.
Figure 18
Figure 18
Typical magnetic core shapes of MCR-WPT couplers.
Figure 19
Figure 19
(a,b) Two processes to reduce additional eddy current loss in nanocrystalline cores.
Figure 20
Figure 20
(a,b) Homogeneous medium approximation method for the magnetism of laminated materials.
Figure 21
Figure 21
Vertical arrangement of the lamination Fe-based nanocrystalline core.
Figure 22
Figure 22
(a,b) Two types of embedded magnetic structures with nanocrystalline and ferrite.
Figure 23
Figure 23
Variation trend of mutual inductance with the core gap.
Figure 24
Figure 24
Flux distribution model for laminated core structure.
See this image and copyright information in PMC

References

    1. Wei X., Wang Z., Dai H. A Critical Review of Wireless Power Transfer via Strongly Coupled Magnetic Resonances. Energies. 2014;7:4316–4341. doi: 10.3390/en7074316. - DOI
    1. Li S., Mi C.C. Wireless Power Transfer for Electric Vehicle Applications. IEEE J. Emerg. Sel. Top. Power Electron. 2015;3:4–17. doi: 10.1109/JESTPE.2014.2319453. - DOI
    1. Aydin E., Aydemir M.T., Aksoz A., El Baghdadi M., Hegazy O. Inductive Power Transfer for Electric Vehicle Charging Applications: A Comprehensive Review. Energies. 2022;15:4962. doi: 10.3390/en15144962. - DOI
    1. Jawad A.M., Nordin R., Gharghan S.K., Jawad H.M., Ismail M. Opportunities and Challenges for Near-Field Wireless Power Transfer: A Review. Energies. 2017;10:1022. doi: 10.3390/en10071022. - DOI
    1. Niu S., Xu H., Sun Z., Shao Z.Y., Jian L. The State-of-the-Arts of Wireless Electric Vehicle Charging via Magnetic Resonance: Principles, Standards and Core Technologies. Renew. Sustain. Energy Rev. 2019;114:109302. doi: 10.1016/j.rser.2019.109302. - DOI

LinkOut - more resources