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Dernières publications et brevets sur les piles à l'état solide

Piles à l'état solide

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Solid-state batteries
Solid-state batteries revolutionize energy storage by enhancing safety and energy density through solid electrolytes.

Les batteries à l'état solide (SSB) représentent un saut transformateur dans la technologie du stockage de l'énergie, en remplaçant les électrolytes liquides par des matériaux solides afin d'améliorer la sécurité et la densité de l'énergie. Ces batteries utilisent des électrolytes à base de céramique, de verre ou de sulfure, qui réduisent considérablement les risques liés aux fuites et à l'inflammabilité. Leur architecture permet une tension plus élevée et une meilleure stabilité thermique, ce qui les rend intéressantes pour les véhicules électriques et l'électronique portable. Il reste des défis à relever pour obtenir des fabrication et de garantir la stabilité à long terme de l'interface entre les électrodes et les électrolytes solides.

électrolyte céramique, électrolyte sulfuré, électrolyte polymère, électrolyte oxyde, électrolyte halogénure, anode métallique de lithium, conductivité ionique, stabilité électrochimique, dommages chimico-mécaniques, emballement thermique, batterie à l'état solide, anode à base de silicium, batteries à l'état solide, oxyde de lithium et de cobalt, SSB, phosphate de fer lithié et oxyde de lithium, nickel, manganèse et cobalt.

Method for manufacturing anode active material layer and method for manufacturing secondary battery

Patent published on the 2026-06-11 in US under Ref US20260162953 by TOYOTA JIDOSHA KK [JP] (Imano Manabu [jp])

Abstract: A method for manufacturing an anode active material layer includes: a step of preparing an anode slurry by mixing an anode active material, a solid electrolyte, a conductive additive, a binder, and a solvent; a step of obtaining a parameter of the anode slurry using a dynamic viscoelasticity measuring device; a step of determining quality of a coating film based on the obtained parameter; and a step of applying the anode slurry that has been determined to be acceptable in the step of determining[...]


Our summary: The method involves preparing an anode slurry with specific components. It uses a dynamic viscoelasticity measuring device to obtain parameters of the slurry. The quality of the coating film is determined before applying the acceptable anode slurry.

anode active material, secondary battery, dynamic viscoelasticity, coating film quality

Patent

Sensor electrode for halogen determination and method for manufacturing a sensor electrode

Patent published on the 2026-06-11 in US under Ref US20260160687 by ENDRESS HAUSER CONDUCTA GMBH CO KG [DE] (Bayer Andreas [de], Bernhard Ralf [de], MÜller Andreas [de])

Abstract: An optical system for a measuring device for optically measuring a measured variable of a medium comprises a first signal path in which a filter designed as a bandpass interference filter is inserted at an inclination angle different from zero degrees, which divides the first signal path into a unidirectional transmission path and a bidirectional path used to transmit excitation radiation and to receive measurement radiation. The inclination angle is dimensioned such that the inclined filter tra[...]


Our summary: The content describes a sensor electrode designed for halogen determination and its manufacturing method. It details an optical system for measuring a medium using a bandpass interference filter at a specific inclination angle. This filter allows certain signal components to pass while reflecting others, facilitating the measurement process.

Sensor electrode, halogen determination, optical system, bandpass filter

Patent

Negative electrode for all-solid-state sodium ion secondary battery, method for manufacturing same, and all-solid-state sodium ion secondary battery

Patent published on the 2026-06-11 in WO under Ref WO2026121155 by NIPPON ELECTRIC GLASS CO LTD [JP] (Tatsuoka Deguchi Mina [jp], Tsunoda Kei [jp], Demizu Masashi [jp], Yamauchi Hideo [jp])

Abstract: Provided are: a negative electrode for an all-solid-state sodium ion secondary battery, the negative electrode being capable of improving the initial charge/discharge efficiency, the conservation characteristics, the output characteristics, and the cycle characteristics of the all-solid-state sodium ion secondary battery; a method for manufacturing the negative electrode; and an all-solid-state sodium ion secondary battery. The negative electrode for an all-solid-state sodium ion secondary batte[...]


Our summary: This content describes a negative electrode designed for all-solid-state sodium ion secondary batteries. It highlights improvements in charge/discharge efficiency and cycle characteristics. Additionally, it outlines a manufacturing method for the negative electrode.

negative electrode, all-solid-state battery, sodium ion, manufacturing method

Patent

Low-dimensional tellurium iodide perovskite structure and an aqueous zinc battery using the same

Patent published on the 2026-06-11 in US under Ref US20260163071 by CITY UNIV OF HONG KONG [HK] (Zhi Chunyi [hk], Wang Shixun [hk])

Abstract: The present invention relates to a low-dimensional tellurium iodide perovskite structure. The low-dimensional structure, specifically an organic-inorganic hybrid benzyltriethylammonium tellurium iodide ((BzTEA)2TeI6), enables a highly efficient eleven-electron transfer process involving redox pairs of Cl0/Cl−, I+/I0/I−, and Te6+/Te4+/Te0/Te2−. This innovative perovskite structure confines both chalcogen and halogen elements, effectively mitigating the shuttle effect and enhancing stability[...]


Our summary: The invention presents a low-dimensional tellurium iodide perovskite structure for efficient electron transfer. The Zn∥(BzTEA)2TeI6 battery demonstrates high capacity and energy density with excellent cycle stability. This work advances the design of high-energy batteries using chalcogen-halide perovskite cathodes.

perovskite, tellurium iodide, zinc battery, energy density

Patent

Solid electrolyte, method for producing same, and power storage device

Patent published on the 2026-06-11 in WO under Ref WO2026121260 by TOAGOSEI CO LTD [JP] (Hiraoka Hideki [jp], Goto Takeshi [jp])

Abstract: This solid electrolyte includes: a film-like porous body having communication holes; and molecular crystals containing, as structural units, an alkali metal salt and organic molecules having at least one type of atom selected from the group consisting of sulfur atoms, oxygen atoms, nitrogen atoms, and phosphorus atoms. The molecular crystals are retained in the communication holes.[...]


Our summary: The solid electrolyte features a porous film-like body with communication holes. It incorporates molecular crystals made from alkali metal salts and organic molecules containing specific atoms. These molecular crystals are securely held within the communication holes.

solid electrolyte, power storage device, alkali metal salt, molecular crystals

Patent

Compound having unshared electron pair for perovskite solar cell, perovskite solar cell having the same and manufacturing method thereof

Patent published on the 2026-06-11 in US under Ref US20260165027 by HANWHA SOLUTIONS CORP [KR] (Jung Dongki [kr], Choi In Taek [kr], Jang Eunsoo [kr])

Abstract: [0000] The present disclosure relates to a novel compound having an unshared electron pair for a perovskite solar cell, a perovskite solar cell including the same, and a method of manufacturing the same.[...]


Our summary: The disclosure presents a novel compound with an unshared electron pair for use in perovskite solar cells. It details the composition of the perovskite solar cell that incorporates this compound. Additionally, it outlines the manufacturing method for producing the solar cell.

unshared electron pair, perovskite solar cell, novel compound, manufacturing method

Patent

Radiation-Induced Synthesis of Asymmetric Porous PVDF-g-PIL Membranes via &beta;-Cyclodextrin Leaching for Vanadium Redox Flow Battery

Published on 2026-02-03 by Jiangtao Yu, Wenkang Li, Wei Niu, Manman Zhang, Junqing Bai, Pengtao Li, Liang Wang, Yuqing Cui, Shuanfang Cui, Xueyan Que, Jun Ma, Long Zhao @MDPI

Abstract: This study aims to address the limitations of dense polyvinylidene fluoride (PVDF) membranes grafted with vinyl ethyl imidazole tetrafluoroborate, which exhibit low hydrophilicity and ionic conductivity in vanadium redox flow batteries (VRFBs). To improve these properties, water-soluble &amp;beta;-cyclodextrin was introduced as a porogen to fabricate asymmetric porous membranes. The porous structure was controlled by varying the porogen content (10&amp;ndash;50 wt%), and the resulting me[...]


Our summary: This study develops asymmetric porous PVDF-g-PIL membranes using β-cyclodextrin leaching to enhance ionic conductivity and porosity for vanadium redox flow batteries. The membranes showed improved ionic conductivity (71.69 mS/cm) and porosity (40.24%) while maintaining mechanical strength. Optimal energy efficiency was achieved by balancing porogen content, demonstrating a scalable method for high-performance battery membranes.

Membranes, PVDF, Vanadium, Ionic conductivity

Publication

Performance Evaluation of a Flexible Power Point Tracking Strategy for Extending the Operational Lifetime of Solar Battery Banks

Published on 2026-02-01 by Mario Orlando Vicencio Soto, Hossein Dehghani Tafti @MDPI

Abstract: Standalone photovoltaic systems play an important role in providing reliable renewable energy in remote areas. These systems depend heavily on battery energy storage, especially lithium iron phosphate batteries, which are known for their safety and long cycle life. However, battery degradation remains a major challenge, as high charging currents, temperature variations, and wide state-of-charge fluctuations introduce electro-thermal stress that reduces the useful lifetime of the storage system. [...]


Our summary: This paper presents a Flexible Power Point Tracking strategy to reduce battery stress and extend the lifetime of lithium iron phosphate batteries in standalone photovoltaic systems. A fuzzy-logic-based controller is implemented to stabilize current peaks, temperature, and state-of-charge variations. Results indicate a 7% improvement in battery lifetime compared to traditional methods.

Power Point Tracking, Battery Degradation, Fuzzy Logic, Renewable Energy

Publication

Sujets abordés : Batteries à l'état solide, publications, brevets, densité énergétique, électrolytes, matériaux d'anode, matériaux de cathode, procédés de fabrication, sécurité, performances, lithium-ion, technologie des batteries, IEC 62660, ISO 9001, IEEE 1725 et ASTM D7860...

Glossaire des termes utilisés

Solid-State Battery (SSB): Cette technologie de batterie utilise des électrolytes solides au lieu d'électrolytes liquides ou gélifiés, offrant une densité énergétique supérieure, une sécurité accrue et une durée de vie prolongée. Elle se caractérise généralement par une meilleure stabilité thermique et un risque réduit de fuite ou de combustion par rapport aux batteries traditionnelles.

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(si la date est inconnue ou non pertinente, par exemple « mécanique des fluides », une estimation arrondie de son émergence notable est fournie)

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