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All Journal Mekanika: Majalah Ilmiah Mekanika Journal of Electrical, Electronic, Information, and Communication Technology (JEEICT)
Santoso, Henry Probo
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Computer Science & IT Control & Systems Engineering Electrical & Electronics Engineering

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The Effect of Battery Manufacturing Under Different Conditions and Its Contribution to CO Emissions Putra, Mufti Reza Aulia; Nizam, Muhammad; Setiawan, Bagas; Santoso, Henry Probo
Mekanika: Majalah Ilmiah Mekanika Vol 24, No 1 (2025): MEKANIKA : Majalah Ilmiah Mekanika
Publisher : Universitas Sebelas Maret

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20961/mekanika.v24i1.99093

Abstract

Lithium-ion (Li-ion) batteries play a crucial role as energy sources for electric vehicles and portable electronic devices due to their high energy density. However, this high energy density leads to increased temperatures during operation, which negatively impacts the performance of nickel strips as the primary electrical connectors within the battery. Suboptimal welding of nickel strips results in safety issues, evidenced by gas leaks from the battery. This research aims to explore the impact of welding defects on battery performance, considering the role of gas sensors in enhancing safety. The test samples used are nickel strips with a thickness of 0.1 mm and a width of 5 mm, evaluated using varying currents of 10A, 20A, 40A, and 50A at room temperature. Observations were made regarding nickel degradation, followed by an analysis of carbon monoxide (CO) and carbon dioxide (CO₂) emissions. The results indicate a temperature increase of up to 78,8°C at the nickel tip, along with the identification of three welding points representing efficient values. Furthermore, the welding results on the battery produced microstructural defects that led to an increase in CO emissions by 18 ppm and CO₂ emissions by 500 ppm during the 1C charging process until reaching 100%.
Design of Hearing Aid and Speech Device for People Hearing Dissorders Adriyanto, Feri; Santoso, Henry Probo; Sari, Andayani Yuwana; Suroya, Rizki Misbakhus
Journal of Electrical, Electronic, Information, and Communication Technology Vol 4, No 1 (2022): JOURNAL OF ELECTRICAL, ELECTRONIC, INFORMATION, AND COMMUNICATION TECHNOLOGY
Publisher : Universitas Sebelas Maret (UNS)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20961/jeeict.4.1.61163

Abstract

Deafness is a condition in which a person cannot hear due to a disturbance in his hearing organs. In communicating, most of the deaf sufferers only receive hearing aids. WHO (World Health Organization) initiated the Sound of Hearing 2030 by preventing hearing loss by 50% in 2015 and 90% in 2030. The main objective of Sound of Hearing is to develop a comprehensive, inclusive, and sustainable ear care program. Various studies on tools for deafness have been developed. However, this tool is only used to help deaf hearing but not to help speech learning (learn to speak). Thus we need hearing aids and speech learning tools for the deaf. This tool can be a government program, namely supporting a diffable-friendly Indonesia. The tool is designed like a headband, where the headband is composed of a row of vibrating modules that will be connected to the Google Assistant on a smartphone, so that any sound received by the Google Assistant will be sent to the tool to be converted into a vibration pattern. It is from these vibration patterns that a deaf person will get experience in recognizing sounds and learn to speak based on the vibration patterns that are formed. With the design of this tool, it hoped that it can help deaf people and get support from the community and government to create a diffable-friendly Indonesia. 
Co-Authors Adriyanto, Feri Bagas Setiawan, Bagas Muhammad Nizam Putra, Mufti Reza Aulia Sari, Andayani Yuwana Suroya, Rizki Misbakhus