Edward Baringin Oloan Sihite
Universitas Kristen Indonesia

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Analysis of the Effect of Calcination Time on Microstructure, Functional Groups, and Crystal Structure of LiNiO2 Battery Cathode Material Budiarto Budiarto; Edward Baringin Oloan Sihite; Medyawanti Pane
VANOS Journal of Mechanical Engineering Education Vol 7, No 1 (2022)
Publisher : Universitas Sultan Ageng Tirtayasa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30870/vanos.v7i1.14533

Abstract

Battery cathode material is one of the four determinants of energy storage capacity, which is used as a power source in electronic equipment. laptops, and electric vehicles. Synthesis of the cathode material for LiNiO2 battery with one stage co-precipitation method, and variations in calcination time of 3, 6, 9 and 24 hours with a constant temperature of 7000C. Microstructure observations with SEM showed an uneven and homogeneous surface. The elemental compositions of Li, and Ni were analyzed by EDXS showing that Li and Ni metal decreased with increasing calcination time. The results of the crystal structure test using an X-ray diffractometer showed that with increasing calcination time the crystallite diameter decreased, but the dislocation density increased. The micro-lattice strain increased with increasing calcination time in the planes of the Miller hkl index (102), (104), (210), (108), and (113). The FTIR spectra show that the peak at wavenumber 433 cm-1 is caused by the asymmetric stretching vibration of Li–O in LiO6 and bending vibration of NiO6, namely [(Ni–O–Li)], appearing at 603 cm-1.
The UMKM Terhubung Platform Teknologi Digitalisasi Dapat Bertahan Terhadap Dampak Pandemic Covid-19 di Kecamatan Kramat Jati, Jakarta Timur Edward Baringin Oloan Sihite
JURNAL Comunità Servizio : Jurnal Terkait Kegiatan Pengabdian kepada Masyarakat, terkhusus bidang Teknologi, Kewirausahaan dan Sosial Kemasyarakatan Vol. 4 No. 1 (2022): APRIL
Publisher : Lembaga Penelitian dan Pengabdian kepada Masyarakat (LPPM), Univesitas Kristen Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33541/cs.v4i1.3803

Abstract

PKM activities have been carried out on UMKM connected to digitalization technology platforms that can withstand the impact of the COVID-19 pandemic in the Kramat Jati sub-district, East Jakarta. The purpose of this PKM is to narrate that UMKM that are growing connected to the digitalization platform. The idea of this incident raised UMKM using a digitalization technology platform as a solution in the midst of the COVID-19 pandemic in the Kramat Jati sub-district, East Jakarta. The PKM implementation method is carried out in the Keramat Jati sub-district where UMKM actors trade. The selected UMKM participants are fostered for business digitization, such as the development of digitalization technology applications and digitalization transaction payments. The instruments used are website applications, digitalization payments, and social media applications. As a result, efforts were made to increase UMKM customer traffic through online promotions on social media (FB and IG) or through Google and e-commerce marketing platforms. Promotional efforts have been made to attract potential customers and introduce the UMKM business to the wider community online.The conclusion proves that UMKM that grow are connected to the digitalization platform, it turns out that not all micro, small and medium enterprises (UMKM) are affected by the COVID-19 pandemic. UMKM that do business by utilizing the digitalization technology platform have actually grown significantly.