Evidence map›Paper›PMID 40942458›Full record

ArticleMaterials (Basel, Switzerland)2025

Study on the Effect of Temperature on the Self-Healing Behavior of Film Capacitor Dielectrics.

Mengjia Feng, Zhiguo Jia, Yancheng Liu, Yandong Liu, Jia Shi, Chaoyue Zhao, Tianqi Sun, Hongbo Liu, Yunqi Xing

Abstract read
PubMed Full text at PMC Publisher
In one paragraph

Article in Materials (Basel, Switzerland), 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

0numbers the graph read from it
0cells of the map it votes in
0citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

0 citing papers in PubMed.

No citing paper in PubMed yet.

4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

9 authors.

Mengjia FengState Key Laboratory of Intelligent Power Distribution Equipment and System, Hebei University of Technology, Tianjin 300123, China.ORCID 0009-0002-6973-5841
Zhiguo JiaState Key Laboratory of Intelligent Power Distribution Equipment and System, Hebei University of Technology, Tianjin 300123, China.
Yancheng LiuState Key Laboratory of Intelligent Power Distribution Equipment and System, Hebei University of Technology, Tianjin 300123, China.ORCID 0009-0002-4818-389X
Yandong LiuState Key Laboratory of Intelligent Power Distribution Equipment and System, Hebei University of Technology, Tianjin 300123, China.
Jia ShiState Key Laboratory of Intelligent Power Distribution Equipment and System, Hebei University of Technology, Tianjin 300123, China.
Chaoyue ZhaoState Key Laboratory of Intelligent Power Distribution Equipment and System, Hebei University of Technology, Tianjin 300123, China.
Tianqi SunState Key Laboratory of Intelligent Power Distribution Equipment and System, Hebei University of Technology, Tianjin 300123, China.
Hongbo LiuState Key Laboratory of Intelligent Power Distribution Equipment and System, Hebei University of Technology, Tianjin 300123, China.
Yunqi XingState Key Laboratory of Intelligent Power Distribution Equipment and System, Hebei University of Technology, Tianjin 300123, China.ORCID 0000-0002-4000-2399

Funding

Hebei Province Centralized Guided Local Science and Technology Development Fund Project 236Z2203GKey Laboratory of Engineering Dielectrics and Its Application (Harbin University of Science and Technology), Ministry of Education KFM202301National Natural Science Foundation of China 52307022Open Foundation of National Key Laboratory of Electronic Thin Films and Integrated Devices KFJJ202305State Key Laboratory of Intelligent Power Distribution Equipment and System EERI_OY2023003S&T Program of Hebei 24464401D
6 · The paper itself

Abstract

Self-healing is imperative for the restoration of the insulation state of metallized film capacitors following breakdown during operation, thereby ensuring the safe and reliable functioning of the capacitors. Temperature is an important factor affecting the self-healing behavior of film capacitor dielectrics, but the mechanism is currently unclear. To investigate the effects of temperature and dielectric matrix on self-healing behavior, polyetherimide (PEI), cycloolefin copolymer (COC), and biaxially oriented polypropylene (BOPP) were selected as research subjects. A systematic study was conducted to examine the self-healing performance at 80, 120, and 150 °C, as well as the effect of self-healing on insulation and energy storage performance. The results showed that as the temperature increased, the capacitance of PEI decreased by 11.90%, 23.00%, and 37.88%, respectively. COC decreased by 11.76%, 7.63%, and 12.18%, respectively, while BOPP decreased by 8.75% and 9.67%, respectively. The accumulation of breakdown holes formed by self-healing decreases, the area of evaporated electrodes decreases, and the boundaries between the evaporated electrode areas formed by self-healing and the surrounding electrodes become more distinct. Furthermore, COC exhibits high dielectric strength, low dielectric loss, and self-healing properties comparable to BOPP at 150 °C, suggesting significant application potential. This research work is of great reference value for establishing the theoretical relationship between the chemical composition of dielectrics and their self-healing ability, and is of great significance for ensuring the safe and reliable operation of capacitors.

Indexed as

dielectricshigh temperatureself-healing

Identifiers

PMID40942458
PMCPMC12429509

What OpenQuestion holds

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LicenceCC BY
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Registered trials

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.