Case study of failure analysis of oxide-based all-solid-state batteries.

It has high safety and can be used in various environments! Consistent analysis is possible.

We present a case study of a series of analyses conducted to identify failure points and perform cross-sectional observations on an oxide-based all-solid-state battery that was destroyed during reliability testing. Thermal analysis revealed a tendency for strong heat generation on the side, and X-ray transmission observations showed white linear contrast anomalies near the boundary where heat generation was observed in the X-ray transmission image. It is suspected that some abnormalities may have occurred in the white line area. When CP cross-sectional SEM observations were conducted on the areas where anomalies were visible, layer delamination was observed. It is inferred that delamination occurred between the current collector and electrolyte layers due to the expansion and contraction of the positive (negative) electrode layers during reliability testing. 【Case Overview】 ■ Sample Information: Oxide-based all-solid-state battery that experienced degradation due to charge and discharge testing ■ Thermal Analysis Results: A tendency for strong heat generation on the side was observed ■ Other Analysis Contents: - X-ray transmission observation - CP cross-sectional observation and elemental analysis via SEM *For more details, please refer to the PDF document or feel free to contact us.

• Batteries and Capacitors

The purity of the electrolyte greatly affects the performance of the battery! It suppresses the volatility of sulfur components and converts them into a form that can be detected by IC.

We will introduce an example of analyzing the purity of diphosphorus pentasulfide using ion chromatography for the composition analysis of raw materials for all-solid-state batteries. Diphosphorus pentasulfide is one of the raw materials used in the production of electrolytes for sulfide-based all-solid-state batteries. As a pretreatment for IC measurement, the powder of diphosphorus pentasulfide was dissolved in alkaline water and converted into phosphate and sulfide salts. Subsequently, the sulfide ions were oxidized to sulfate ions to prepare the IC measurement solution. For more details, please refer to the published catalog. 【Solid Electrolytes (Partial)】 ■Li3PS4 ■Li7P3S11 ■Li6PS5Cl ■Li6PS5Br *For more information, please refer to the PDF document or feel free to contact us.

• Analysis and prediction system

It is possible to perform non-destructive testing from fault location identification to internal observation! High-precision identification of heat generation areas can be achieved.

Thermal analysis is a method for identifying defective areas by detecting the heat generated at leak points due to applied voltage using a high-sensitivity InSb camera. By detecting the weak heat generated from shorts and leaks with a high-sensitivity InSb camera, it is possible to non-destructively identify the failure points of electronic components such as semiconductors. Furthermore, non-destructive observation can also be performed using X-ray inspection equipment. 【Features】 ■ Identifying defective areas by detecting the heat generated at leak points with a high-sensitivity InSb camera ■ Analyzing samples in a non-destructive state, and analyzing electronic components that are difficult to analyze with OBIRCH or emission methods is also possible ■ By using the lock-in function to obtain phase information, it is possible to accurately identify the heat generation points *For more details, please refer to the PDF document or feel free to contact us.

• others

Cracks that couldn't be detected visually might be found with X-rays!

When stress such as warping, bending, or twisting is applied to the printed circuit board, cracks may occur inside the MLCC (Multi-Layer Ceramic Chip Capacitor). Moreover, cracks that develop internally are often hidden beneath the electrodes, making it difficult to detect them through visual inspection. In such cases, how about checking with X-rays? [Observation Details] ■ Oblique CT Observation It is possible to perform CT without destroying the printed circuit board, in its original state. ■ Orthogonal CT Observation It is possible to observe the shape of the components in their original state. *For more details, please refer to the PDF document or feel free to contact us.

• others

In recent times, there has been a growing interest in infection control measures and facility hygiene management. Our company offers non-contact sensor products that are recommended for commercial facilities, food factories, and nursing and caregiving facilities. 【Sensors for Automatic Doors】 ● Light Touch Sensor HA-T401 … When you wave your hand in front of the automatic door, the sensor detects the movement and opens or closes the door. This is recommended for making doors with touch switches non-contact. ● Hand Wave Sensor PF-R5, PF-U2, DHS-1 … Opens and closes the automatic door by waving your hand in front of the sensor. ● Foot Switch PF-01S/01D/03S/05 … Opens and closes the automatic door by placing your foot in the opening. 【Access Control System】 ● Face Recognition + Unmanned Temperature Measurement DS Series … Allows for face recognition along with mask detection and body temperature measurement simultaneously. ● Automatic Disinfectant Spray Dispenser PHW-03B … Automatically sprays disinfectant when you wave your hand in front of the sensor. 【Nursing and Care Sensors】 ● Infrared Bed Exit Sensor "Just Place It Pole-kun" … This bed exit sensor is installed next to the bed and notifies via nurse call when the subject enters the detection range. ◎ For more details, please download the catalog or contact us.

[To the owners of parking lots and parking lot construction companies] "I'm worried about not colliding with pedestrians when exiting the parking lot..." Among vehicle entrances to parking lots, stores, residences, and factories, particularly at entrances facing sidewalks or roadways, there is a risk of dangerous incidents such as collisions with pedestrians or between vehicles. To alleviate such concerns, Hotron proposes a [Vehicle Exit Warning Sensor] that detects vehicle departures using various sensors and alerts the surrounding area with LED lights and buzzers. The system consists of a simple configuration of "sensor" + "controller" + "switching power supply (24V)" + "LED rotating light." *Please note that a separate control panel is required to include the controller and switching power supply (24V) when using the exit warning system. *We kindly ask customers to arrange for the switching power supply (24V), LED rotating light, control panel, circuit breakers, etc. Since it can be retrofitted, it can also be used for existing parking lot entrances. We hope this will contribute to safer vehicle passage for everyone. ◎ For more details, please contact us or download the catalog.

In the October 31 issue of the newsletter "Carbon" No. 13 from Mitani Sangyo Co., Ltd., our "LP Gas & Gasoline Generator ELSONA" and our support activities for the disaster-stricken areas during the Noto Peninsula earthquake have been featured. Even now, as recovery continues in Noto, new challenges and collaborations are emerging, and hints for regional revitalization that have become visible through these efforts are being introduced. Please take a look. ___________________________ Digital book available here (Featured article on pages 32-33) https://carbon-innovation.com/ ___________________________

G&ECO has been promoting the initiative "1.5 for the future" since 2022, donating a portion of the sales from its product "ELSONA" to nonprofit organizations that support the introduction of renewable energy. As part of this effort, we continue to be a corporate supporter of the NPO Sora Bear Foundation. Following last year, we are also sponsoring the "Sora Bear Sonael Project" this year, and we are pleased to announce that the donation gardens have been decided and announced in the second public recruitment held from July 1 to September 5, 2025. The "Sora Bear Sonael Project" supports the use of renewable energy and enhances disaster preparedness by donating "portable power sources" and "solar panels" to kindergartens attended by preschool children. Additionally, we hold an environmental and disaster education program called the "Sora Bear Workshop," providing children with opportunities to learn about the environment and disasters in a fun way. Through this project, we hope to contribute to the spread of renewable energy in the community and raise awareness among the children who will lead the future. G&ECO will continue to value "what can be done for the future" and contribute to the realization of a sustainable society.

Based on practical experience in support companies and business companies, SBS Marketing Co., Ltd. provides consulting services related to marketing, sales promotion, and customer acquisition primarily in the BtoB (business-to-business) sector. On November 13, 2025, they published a page titled "High Communicative Ability but a Cautionary Figure!? 'Dark Triad.'" The term 'Dark Triad' refers to a combination of three personality traits: "Narcissism," "Machiavellianism," and "Psychopathy." The page explains two characteristics of these traits, methods to "detect" them, ways to alleviate negative emotions caused by the 'Dark Triad,' and the "positive aspects" associated with it. (Page Overview: Excerpts) ■ What is the 'Dark Triad'? ■ Two characteristics of the Dark Triad ■ How to "detect" if someone has the 'Dark Triad' traits? ■ How to alleviate the "negative emotions" caused by the 'Dark Triad'? ■ How to utilize the positive aspects of the 'Dark Triad' as a "model" (DL content only) ▼ For more details, please visit this page. https://sbsmarketing.co.jp/blog/dark-tried-2025-11/