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

**Improvement of Spoofing Prevention Accuracy and Performance** With FaceMe SDK 7.8, we enhance measures against increasingly sophisticated spoofing attacks by improving authentication accuracy and processing speed, thereby increasing the safety and reliability of facial recognition. - IR + RGB Spoofing Prevention: Detection accuracy improved by up to 35%, processing speed improved by up to 15% - 3D Spoofing Prevention: Detection accuracy improved by up to 56.8% for Intel RealSense D415 **Reducing Development Burden with the New Integrated API "FaceMe Authenticator"** We have integrated multiple processes that previously required individual implementation into a single API. Integrated Functions: - Face Detection + Feature Point Extraction + Spoofing Prevention + Authentication Processing Features: - Compatible with Windows / Ubuntu x64 / Android - 2D cameras, 3D depth cameras, and IR + RGB cameras can be used through a single interface - Significantly reduces development burden while maintaining high-accuracy authentication

Crittec Industries Co., Ltd. published a newspaper advertisement (black and white, full-page 15 columns) for the bridge expansion device "Hybrid Joint" in the February 26, 2026 issue of the Sankei Shimbun Tohoku 6 Prefectures edition. In Japan, the number of bridges over 50 years old is rapidly increasing, making the longevity of bridges a critical issue. The expansion devices, which are considered a cause of bridge damage, require high water-tightness and long-term durability. Our expansion device "Hybrid Joint" offers multiple types tailored to different bridge types and conditions. Among them, the "Hybrid Joint 3LII type" has demonstrated a durability of 100 years in fatigue loading tests conducted by a third-party organization. It has successfully passed 12 million cycles of repeated loading at a maximum load of 260 kN, confirming performance equivalent to a 100-year design service life for bridges. We have numerous delivery records in the six Tohoku prefectures and can accommodate a wide range of bridge types, including steel and PC bridges. The special website linked to the advertisement allows for the review of detailed materials and inquiries or requests for documents. Please make use of it for comparing and considering bridge renewal and repair plans. Crittec Industries will continue to contribute to the longevity of bridges nationwide, starting with the Tohoku region.

Grace Solar looks forward to meeting you at the 2026 Italy International Renewable Energy Exhibition (KEY 2026). Grace Solar will showcase a versatile solar mounting solution optimized for the diverse terrains and project requirements of Europe, exploring the future of green energy in Europe alongside leaders from the global energy industry. Venue: Rimini Expo Center, Italy Date: March 4-6, 2026 Booth Number: C4-121

We will be exhibiting at "Japan IT Week" held at Tokyo Big Sight. At our booth, we will be introducing our mobile BPO service for corporations, "MaruMoba." Our professional staff will handle device management, setup, repair, loss response, and user support all in one, significantly reducing your operational burden. We understand you are busy, but we kindly ask you to gather your colleagues and visit us. ================================================= 1. Date and Time 【Schedule】April 8 (Wed) to April 10 (Fri), 2026, for three days 【Hours】10:00 AM to 5:00 PM 2. Venue 3-11-1 Ariake, Koto-ku, Tokyo 135-0063 Tokyo Big Sight, East 1-3, 7, 8, West 1-4 3. Admission Complete pre-registration required (please check the exhibition website for details) ================================================ We sincerely look forward to your visit.

This is a request for foreign residents who wish to obtain CPDS units. We have added a "request item" to ensure smooth operations when attending webinars and paid courses hosted by K&i Web Academy. ■ 11. Those wishing to obtain CPDS units are requested to provide their name accurately (especially for foreign residents). We appreciate your cooperation. You can access it via the link below.