Randy Jalem - My portal

Profile Information

Affiliation: National Institute for Materials Science

J-GLOBAL ID: 201701009338163507
researchmap Member ID: B000272495

Research Interests

Research Areas

Research History

Apr, 2017 - Present

Interface Computational Science (IFCS) Group, National Institute for Materials Science - Global Research Center for Environment and Energy Based on Nanomaterials Science (NIMS-GREEN), Tsukuba, Ibaraki, Japan
Apr, 2017 - Mar, 2022

Elements Strategy Initiative for Catalysts & Batteries (ESICB), Kyoto University, Japan
Oct, 2016 - Mar, 2020

JST PRESTO (Materials Informatics Region), Japan
May, 2015 - Mar, 2019

National Institute for Materials Science - "Materials research by Information Integration" Initiative (Mi2i), Tsukuba, Ibaraki, Japan
Apr, 2016 - Mar, 2017

Battery Materials Exploration Group, National Institute for Materials Science - Global Research Center for Environment and Energy Based on Nanomaterials Science (NIMS-GREEN), Tsukuba, Ibaraki, Japan
May, 2015 - Mar, 2016

Battery Materials Exploration Group, National Institute for Materials Science - Global Research Center for Environment and Energy Based on Nanomaterials Science (NIMS-GREEN), Tsukuba, Ibaraki, Japan
Apr, 2014 - Apr, 2015

Environment-Benign Materials Laboratory, Nagoya Institute of Technology, Japan
Apr, 2014 - Apr, 2015

Unit of Elements Strategy Initiative for Catalysts & Batteries (ESICB), Kyoto University, Japan

Education

Apr, 2011 - Mar, 2014

PhD in Materials Science and Engineering, Nagoya Institute of Technology, Japan
Apr, 2009 - Mar, 2011

Master of Engineering, Nagoya Institute of Technology, Japan
Apr, 2008 - Mar, 2009

Research Studentship, Nagoya Institute of Technology, Japan
Jun, 1999 - Mar, 2004

Bachelor of Science in Ceramic Engineering, Mindanao State University – Iligan Institute of Technology, Philippines

Papers

3．第一原理計算を基軸とした高イオン伝導度固体電解質のハイスループット探索と記述子抽出

Yoshitaka TATEYAMA, Seong-Hoon JANG, Randy JALEM

Denki Kagaku, 91(2) 150-154, Jun 5, 2023
Microwave assisted preparation of LiFePO4/C coated LiMn1.6Ni0.4O4 for Li-ion batteries with superior electrochemical properties

F.A. Vásquez, N.C. Rosero-Navarro, R. Jalem, A. Miura, Y. Goto, Y. Tateyama, J.A. Calderón, K. Tadanaga

Applied Materials Today, 30 101697-101697, Feb, 2023
Atomistic insight into the dopant impacts at the garnet Li7La3Zr2O12 solid electrolyte grain boundaries

Bo Gao, Randy Jalem, Yoshitaka Tateyama

JOURNAL OF MATERIALS CHEMISTRY A, 10(18) 10083-10091, May, 2022
Theoretical study on stability and ion transport property with halide doping of Na3SbS4 electrolyte for all-solid-state batteries

Randy Jalem, Bo Gao, Hong-Kang Tian, Yoshitaka Tateyama

JOURNAL OF MATERIALS CHEMISTRY A, 10(5) 2235-2248, Feb, 2022
First-Principles DFT Study on Inverse Ruddlesden-Popper Tetragonal Compounds as Solid Electrolytes for All-Solid-State Li+-Ion Batteries

Randy Jalem, Yoshitaka Tateyama, Kazunori Takada, Masanobu Nakayama

CHEMISTRY OF MATERIALS, 33(15) 5859-5871, Aug, 2021
Tuning the performance of a Mg negative electrode through grain boundaries and alloying toward the realization of Mg batteries

Hong-Kang Tian, Randy Jalem, Masaki Matsui, Toshihiko Mandai, Hidetoshi Somekawa, Yoshitaka Tateyama

JOURNAL OF MATERIALS CHEMISTRY A, 9(27) 15207-15216, Jul, 2021
Kinetic Control of the Li0.9Mn1.6Ni0.4O4 Spinel Structure with Enhanced Electrochemical Performance

F. A. Vásquez, N. C. Rosero-Navarro, A. Miura, R. Jalem, Y. Goto, M. Nagao, Y. Tateyama, K. Tadanaga, J. A. Calderón

ACS Applied Materials & Interfaces, 13(12) 14056-14067, Mar 31, 2021
First-Principles Study of Microscopic Electrochemistry at the LiCoO2 Cathode/LiNbO3 Coating/beta-Li3PS4 Solid Electrolyte Interfaces in an All-Solid-State Battery

Bo Gao, Randy Jalem, Yoshitaka Tateyama

ACS APPLIED MATERIALS & INTERFACES, 13(10) 11765-11773, Mar, 2021
Chemical stability of Li4PS4I solid electrolyte against hydrolysis

Marcela Calpa, Nataly Carolina Rosero-Navarro, Akira Miura, Randy Jalem, Yoshitaka Tateyama, Kiyoharu Tadanaga

Applied Materials Today, 22 100918-100918, Mar, 2021
Electron and Ion Transfer across Interfaces of the NASICON-Type LATP Solid Electrolyte with Electrodes in All-Solid-State Batteries: A Density Functional Theory Study via an Explicit Interface Model

Hong-Kang Tian, Randy Jalem, Bo Gao, Yuta Yamamoto, Shunsuke Muto, Miyuki Sakakura, Yasutoshi Iriyama, Yoshitaka Tateyama

ACS APPLIED MATERIALS & INTERFACES, 12(49) 54752-54762, Dec, 2020
First-Principles Calculation Study of Na+ Superionic Conduction Mechanism in W- and Mo-Doped Na3SbS4 Solid Electrolytes

Randy Jalem, Akitoshi Hayashi, Fumika Tsuji, Atsushi Sakuda, Yoshitaka Tateyama

Chemistry of Materials, 32(19) 8373-8381, Sep 29, 2020 Peer-reviewed
Significant Reduction in the Interfacial Resistance of Garnet-Type Solid Electrolyte and Lithium Metal by a Thick Amorphous Lithium Silicate Layer

Nataly Carolina Rosero-Navarro, Ryunosuke Kajiura, Randy Jalem, Yoshitaka Tateyama, Akira Miura, Kiyoharu Tadanaga

ACS Applied Energy Materials, 3(6) 5533-5541, Jun 22, 2020 Peer-reviewed
Surface-Dependent Stability of the Interface between Garnet Li7La3Zr2O12 and the Li Metal in the All-Solid-State Battery from First-Principles Calculations

Bo Gao, Randy Jalem, Yoshitaka Tateyama

ACS Applied Materials & Interfaces, 12(14) 16350-16358, Apr 8, 2020 Peer-reviewed
Li+ Transport Mechanism at the Heterogeneous Cathode/Solid Electrolyte Interface in an All-Solid-State Battery via the First-Principles Structure Prediction Scheme

Bo Gao, Randy Jalem, Yanming Ma, Yoshitaka Tateyama

Chemistry of Materials, 32(1) 85-96, Nov, 2019 Peer-reviewed
Theoretical picture of positive electrode–solid electrolyte interface in all-solid-state battery from electrochemistry and semiconductor physics viewpoints

Yoshitaka Tateyama, Bo Gao, Randy Jalem, Jun Haruyama

Current Opinion in Electrochemistry, 17 149-157, Oct, 2019 Peer-reviewed
Molecular Dynamics Studies on the Lithium Ion Conduction Behaviors Depending on Tilted Grain Boundaries with Various Symmetries in Garnet-Type Li7La3Zr2O12

Hiromasa Shiiba, Nobuyuki Zettsu, Miho Yamashita, Hitoshi Onodera, Randy Jalem, Masanobu Nakayama, Katsuya Teshima

The Journal of Physical Chemistry C, 122(38) 21755-21762, Aug, 2018 Peer-reviewed
Bayesian-Driven First-Principles Calculations for Accelerating Exploration of Fast Ion Conductors for Rechargeable Battery Application

Randy Jalem, Kenta Kanamori, Ichiro Takeuchi, Masanobu Nakayama, Hisatsugu Yamasaki, Toshiya Saito

Scientific Reports, 8(1), Apr 11, 2018 Peer-reviewed
A general representation scheme for crystalline solids based on Voronoi-tessellation real feature values and atomic property data

Jalem, R., Nakayama, M., Noda, Y., Le, T., Takeuchi, I., Tateyama, Y., Yamazaki, H.

Science and Technology of Advanced Materials, 19(1) 231-242, 2018 Peer-reviewed
Density functional studies of olivine-type LiFePO 4 and NaFePO 4 as positive electrode materials for rechargeable lithium and sodium ion batteries

Masanobu Nakayama, Shohei Yamada, Randy Jalem, Toshihiro Kasuga

Solid State Ionics, 286 40-44, Mar, 2016 Peer-reviewed
Experimental and first-principles DFT study on the electrochemical reactivity of garnet-type solid electrolytes with carbon

Jalem, R., Morishita, Y., Okajima, T., Takeda, H., Kondo, Y., Nakayama, M., Kasuga, T.

Journal of Materials Chemistry A, 4(37) 14371-14379, 2016 Peer-reviewed

Misc.

High-Throughput Data-Driven Prediction of Stable High-Performance Na-Ion Sulfide Solid Electrolytes (vol 32, 2206036, 2022)

Seong-Hoon Jang, Yoshitaka Tateyama, Randy Jalem

ADVANCED FUNCTIONAL MATERIALS, 32(51), Dec, 2022
リチウムイオン電池セラミックス材料のマテリアルズ・インフォマティクス

中山将伸, 信原邦啓, Randy Jalem, 春日敏宏

セラミックス, 50 546-551, Apr 1, 2015
計算科学から見たナトリウムイオン電池

中山将伸, ハレムランディ, 春日敏宏

Electrochemistry, 83(3) 176-181, Mar, 2015

Teaching Experience

Jun, 2004 - Mar, 2008

Engineering Sciences, Ceramic Crystal Chemistry, Phase Equilibria in Ceramics Systems, Quality Control Fundamental and Instrumentation, Fuels and Combustion (College of Engineering, Mindanao State University – Iligan Institute of Technology, Philippines)