Bereket Woldegbreal Taklu
@postdoctoral research fellow
Chemical Engineering
National Taiwan University of Science and Technology
Dr. Bereket Woldegbreal Taklu is currently work as a postdoctoral research fellow at the NTUST. Area of expertise focuses on lithium battery technology related to interface engineering, solid electrolyte development, and anode materials.
EDUCATION
National Taiwan University of Science and Technology
Wollo University
Bahir Dar University
Gondar University
RESEARCH INTERESTS
Any topics related with
Sulfide solid electrolyte;
Halide solid electrolyte;
Solid electrolyte / Li interface engineering;
Aqueous Zn ion battery;
Anode free lithium metal batteries
22
Scopus Publications
Scopus Publications
- Boosting anode interfacial stability in All-Solid-State lithium hybrid batteries with MCMB-Modified stainless steel current collector
Abebe Taye Fenta, Yosef Nikodimos, Semaw Kebede Merso, Ayenew Meniber, Misganaw Adigo Weret, Kassie Nigus Shitaw, Bereket Woldegbreal Taklu, Felika Valencia, Tsung-I Yeh, Chia Lung Hsieh,et al.
Elsevier BV - Stabilizing the interface between Li<inf>6</inf>PS<inf>5</inf>Cl argyrodite sulfide solid electrolyte and Li via in situ formed LiF-Li<inf>3</inf>Bi lithiophobic-lithiophilic bifunctional layer
Gashahun Gobena Serbessa, Yosef Nikodimos, Bereket Woldegbreal Taklu, Semaw Kebede Merso, Zabish Bilew Muche, Berhanu Degagsa Dandena, Saravanan Ashok Vallal, Tsung-I Yeh, Felika Valencia, Yi-Fen Hung,et al.
Elsevier BV - Integrating electrodes and PVDF-HFP/Kevlar nanofiber separator for multi-functions using electrospinning
Zabish Bilew Muche, Yosef Nikodimos, Chia-Yu Chang, Semaw Kebede Merso, Teshager Mekonnen Tekaligne, Kassie Nigus Shitaw, Gashahun Gobena Serbessa, Teklay Mezgebe Hagos, Bereket Woldegbreal Taklu, Tripti Agnihotri,et al.
Elsevier BV - Li–Sb Alloy Formation Strategy to Improve Interfacial Stability of All-Solid-State Lithium Batteries
Berhanu Degagsa Dandena, Wei‐Nien Su, Dah‐Shyang Tsai, Yosef Nikodimos, Bereket Woldegbreal Taklu, Hailemariam Kassa Bezabh, Gidey Bahre Desta, Sheng‐Chiang Yang, Keseven Lakshmanan, Hwo‐Shuenn Sheu,et al.
Wiley
AbstractThe solid electrolyte is anticipated to prevent lithium dendrite formation. However, preventing interface reactions and the development of undesirable lithium metal deposition during cycling are difficult and remain unresolved. Here, to comprehend these occurrences better, this study reports an alloy formation strategy for enhanced interface stability by incorporating antimony (Sb) in the lithium argyrodite solid electrolyte Li6PS5Cl (LPSC‐P) to form Li–Sb alloy. The Li–Sb alloy emergence at the anodic interface is crucial in facilitating uniform lithium deposition, resulting in excellent long‐term stability, and achieving the highest critical current density of 14.5 mA cm−2 (among the reported sulfide solid electrolytes) without lithium dendrite penetration. Furthermore, Li–Sb alloy formation maintain interfacial contact, even, after several plating and stripping. The Li–Sb alloy formation is confirmed by XRD, Raman, and XPS. The work demonstrates the prospect of utilizing alloy‐forming electrolytes for advanced solid‐state batteries. - In situ DRIFTS analysis of the evolution of surface species over Li<inf>6</inf>PS<inf>5</inf>Cl solid state electrolyte during moisture-induced degradation and during heat treatment
Leyela Hassen Adem, Bikila Nagasa Olana, Bereket Woldegbreal Taklu, Berhanu Degagsa Dandena, Gashahun Gobena Serbessa, Bing-Joe Hwang, and Shawn D. Lin
Elsevier BV - Electrochemical Activation of LiGaO<inf>2</inf>: Implications for Ga-Doped Garnet Solid Electrolytes in Li-Metal Batteries
Anna Windmüller, Kristian Schaps, Frederik Zantis, Anna Domgans, Bereket Woldegbreal Taklu, Tingting Yang, Chih-Long Tsai, Roland Schierholz, Shicheng Yu, Hans Kungl,et al.
American Chemical Society (ACS)
Ga-doped Li7La3Zr2O12 garnet solid electrolytes exhibit the highest Li-ion conductivities among the oxide-type garnet-structured solid electrolytes, but instabilities toward Li metal hamper their practical application. The instabilities have been assigned to direct chemical reactions between LiGaO2 coexisting phases and Li metal by several groups previously. Yet, the understanding of the role of LiGaO2 in the electrochemical cell and its electrochemical properties is still lacking. Here, we are investigating the electrochemical properties of LiGaO2 through electrochemical tests in galvanostatic cells versus Li metal and complementary ex situ studies via confocal Raman microscopy, quantitative phase analysis based on powder X-ray diffraction, energy-dispersive X-ray spectroscopy, X-ray photoelectron spectroscopy, and electron energy loss spectroscopy. The results demonstrate considerable and surprising electrochemical activity, with high reversibility. A three-stage reaction mechanism is derived, including reversible electrochemical reactions that lead to the formation of highly electronically conducting products. The results have considerable implications for the use of Ga-doped Li7La3Zr2O12 electrolytes in all-solid-state Li-metal battery applications and raise the need for advanced materials engineering to realize Ga-doped Li7La3Zr2O12for practical use. - Generating Multi-Carbon Products by Electrochemical CO<inf>2</inf> Reduction via Catalytically Harmonious Ni/Cu Dual Active Sites
Keseven Lakshmanan, Wei‐Hsiang Huang, Soressa Abera Chala, Chia‐Yu Chang, Sruthi Thiraviam Saravanan, Bereket Woldegbreal Taklu, Endalkachew Asefa Moges, Yosef Nikodimos, Berhanu Degagsa Dandena, Sheng‐Chiang Yang,et al.
Wiley
AbstractDespite the unique advantages of single‐atom catalysts, molecular dual‐active sites facilitate the C‐C coupling reaction for C2 products toward the CO2 reduction reaction (CO2RR). The Ni/Cu proximal dual‐active site catalyst (Ni/Cu‐PASC) is developed, which is a harmonic catalyst with dual‐active sites, by simply mixing commercial Ni‐phthalocyanine (Ni‐Pc) and Cu‐phthalocyanine (Cu‐Pc) molecules physically. According to scanning transmission electron microscopy (STEM) and transmission electron microscopy (TEM) energy dispersive spectroscopy (EDS) data, Ni and Cu atoms are separated, creating dual‐active sites for the CO2RR. The Ni/Cu‐PASC generates ethanol with an FE of 55%. Conversely, Ni‐Pc and Cu‐Pc have only detected single‐carbon products like CO and HCOO−. In situ X‐ray absorption spectroscopy (XAS) indicates that CO generation is caused by the stable Ni active site's balanced electronic state. The CO production from Ni‐Pc consistently increased the CO concentration over Cu sites attributed to subsequent reduction reaction through a C‐C coupling on nearby Cu. The CO bound (HCOO−) peak, which can be found on Cu‐Pc, vanishes on Ni/Cu‐PASC, as shown by in situ fourier transformation infrared (FTIR). The characteristic intermediate of *CHO instead of HCOO− proves to be the prerequisite for multi‐carbon products by electrochemical CO2RR. The work demonstrates that the harmonic dual‐active sites in Ni/Cu‐PASC can be readily available by the cascading proximal active Ni‐ and Cu‐Pc sites. - Moisture Robustness of Li<inf>6</inf>PS<inf>5</inf>Cl Argyrodite Sulfide Solid Electrolyte Improved by Nano-Level Treatment with Lewis Acid Additives
Yosef Nikodimos, Shi-Kai Jiang, Shing-Jong Huang, Bereket Woldegbreal Taklu, Wei-Hsiang Huang, Gidey Bahre Desta, Teshager Mekonnen Tekaligne, Zabish Bilew Muche, Keseven Lakshmanan, Chia-Yu Chang,et al.
American Chemical Society (ACS) - Mechanistic Study on Artificial Stabilization of Lithium Metal Anode via Thermal Pyrolysis of Ammonium Fluoride in Lithium Metal Batteries
Bereket Woldegbreal Taklu, Wei-Nien Su, Jeng-Chian Chiou, Chia-Yu Chang, Yosef Nikodimos, Keseven Lakshmanan, Teklay Mezgebe Hagos, Gashahun Gobena Serbessa, Gidey Bahre Desta, Teshager Mekonnen Tekaligne,et al.
American Chemical Society (ACS)
The use of the “Holy Grail” lithium metal anode is pivotal to achieve superior energy density. However, the practice of a lithium metal anode faces practical challenges due to the thermodynamic instability of lithium metal and dendrite growth. Herein, an artificial stabilization of lithium metal was carried out via the thermal pyrolysis of the NH4F salt, which generates HF(g) and NH3(g). An exposure of lithium metal to the generated gas induces a spontaneous reaction that forms multiple solid electrolyte interface (SEI) components, such as LiF, Li3N, Li2NH, LiNH2, and LiH, from a single salt. The artificially multilayered protection on lithium metal (AF-Li) sustains stable lithium stripping/plating. It suppresses the Li dendrite under the Li||Li symmetric cell. The half-cell Li||Cu and Li||MCMB systems depicted the attributions of the protective layer. We demonstrate that the desirable protective layer in AF-Li exhibited remarkable capacity retention (CR) results. LiFePO4 (LFP) showed a CR of 90.6% at 0.5 mA cm–2 after 280 cycles, and LiNi0.5Mn0.3Co0.2O2 (NCM523) showed 58.7% at 3 mA cm–2 after 410 cycles. Formulating the multilayered protection, with the simultaneous formation of multiple SEI components in a facile and cost-effective approach from NH4F as a single salt, made the system competent. - Multiple protective layers for suppressing Li dendrite growth and improving the cycle life of anode-free lithium metal batteries
Semaw Kebede Merso, Teshager Mekonnen Tekaligne, Misganaw Adigo Weret, Kassie Nigus Shitaw, Yosef Nikodimos, Sheng-Chiang Yang, Zabish Bilew Muche, Bereket Woldegbreal Taklu, Boas Tua Hotasi, Chia-Yu Chang,et al.
Elsevier BV - Boosting the Interfacial Stability of the Li<inf>6</inf>PS<inf>5</inf>Cl Electrolyte with a Li Anode via In Situ Formation of a LiF-Rich SEI Layer and a Ductile Sulfide Composite Solid Electrolyte
Gashahun Gobena Serbessa, Bereket Woldegbreal Taklu, Yosef Nikodimos, Nigusu Tiruneh Temesgen, Zabish Bilew Muche, Semaw Kebede Merso, Tsung-I Yeh, Ya-Jun Liu, Wei-Sheng Liao, Chia-Hsin Wang,et al.
American Chemical Society (ACS)
Due to its good mechanical properties and high ionic conductivity, the sulfide-type solid electrolyte (SE) can potentially realize all-solid-state batteries (ASSBs). Nevertheless, challenges, including limited electrochemical stability, insufficient solid-solid contact with the electrode, and reactivity with lithium, must be addressed. These challenges contribute to dendrite growth and electrolyte reduction. Herein, a straightforward and solvent-free method was devised to generate a robust artificial interphase between lithium metal and a SE. It is achieved through the incorporation of a composite electrolyte composed of Li6PS5Cl (LPSC), polyethylene glycol (PEG), and lithium bis(fluorosulfonyl)imide (LiFSI), resulting in the in situ creation of a LiF-rich interfacial layer. This interphase effectively mitigates electrolyte reduction and promotes lithium-ion diffusion. Interestingly, including PEG as an additive increases mechanical strength by enhancing adhesion between sulfide particles and improves the physical contact between the LPSC SE and the lithium anode by enhancing the ductility of the LPSC SE. Moreover, it acts as a protective barrier, preventing direct contact between the SE and the Li anode, thereby inhibiting electrolyte decomposition and reducing the electronic conductivity of the composite SE, thus mitigating the dendrite growth. The Li|Li symmetric cells demonstrated remarkable cycling stability, maintaining consistent performance for over 3000 h at a current density of 0.1 mA cm-2, and the critical current density of the composite solid electrolyte (CSE) reaches 4.75 mA cm-2. Moreover, the all-solid-state lithium metal battery (ASSLMB) cell with the CSEs exhibits remarkable cycling stability and rate performance. This study highlights the synergistic combination of the in-situ-generated artificial SE interphase layer and CSEs, enabling high-performance ASSLMBs. - Solvent-free fabrication of freestanding inorganic solid electrolyte membranes: Challenges, progress, and perspectives
Yosef Nikodimos, Martin Ihrig, Bereket Woldegbreal Taklu, Wei-Nien Su, and Bing Joe Hwang
Elsevier BV - Air-stable iodized-oxychloride argyrodite sulfide and anionic swap on the practical potential window for all-solid-state lithium-metal batteries
Bereket Woldegbreal Taklu, Yosef Nikodimos, Hailemariam Kassa Bezabh, Keseven Lakshmanan, Teklay Mezgebe Hagos, Teshome Assefa Nigatu, Semaw Kebede Merso, Hung-Yi Sung, Sheng-Chiang Yang, She-Huang Wu,et al.
Elsevier BV - An anode-free aqueous hybrid batteries enabled by in-situ Cu/Sn/Zn alloy formation on pure Cu substrate
Teshome Assefa Nigatu, Hailemariam Kassa Bezabh, Shi-Kai Jiang, Bereket Woldegbreal Taklu, Yosef Nikodimos, Sheng-Chiang Yang, She-Huang Wu, Wei-Nien Su, Chun-Chen Yang, and Bing Joe Hwang
Elsevier BV - In-Depth Insight into a Passive Film through Hydrogen-Bonding Network in an Aqueous Zinc Battery
Hailemariam Kassa Bezabh, Jeng-Chian Chiou, Teshome Assefa Nigatu, Teklay Mezgebe Hagos, Shi-Kai Jiang, Yosef Nikodimos, Bereket Woldegbreal Taklu, Meng-Che Tsai, Wei-Nien Su, and Bing Joe Hwang
American Chemical Society (ACS)
Electrochemical stability and interfacial reactions are crucial for rechargeable aqueous zinc batteries. Electrolyte engineering with low-cost aqueous electrolytes is highly required to stabilize their interfacial reactions. Herein, we propose a design strategy using glutamic additive and its derivatives with modification of hydrogen-bonding network to enable Zn aqueous battery at a low concentration (2 m ZnSO4 + 1 m Li2SO4). Computational, in situ/ex situ spectroscopic, and electrochemical studies suggest that additives with moderate interactions, such as 0.1 mol % glutamic additive (G1), preferentially absorb on the Zn surface to homogenize Zn2+ plating and favorably interact with Zn2+ in bulk to weaken the interaction between H2O and Zn2+. As a result, uniform deposition and stable electrochemical performance are realized. The Zn||Cu half-cell lasts for more than 200 cycles with an average Coulombic efficiency (CE) of >99.32% and the Zn||Zn symmetrical cells for 1400 h with a low and stable overpotential under a current density of 0.5 mA cm-2, which is better than the reported results. Moreover, adding 0.1 mol % G1 to the Zn||LFP full cell improves its electrochemical performance with stable cycling and achieves a remarkable capacity of 147.25 mAh g-1 with a CE of 99.79% after 200 cycles. - Solvent-free design of argyrodite sulfide composite solid electrolyte with superb interface and moisture stability in anode-free lithium metal batteries
Nigusu Tiruneh Temesgen, Hailemariam Kassa Bezabh, Misganaw Adigo Weret, Kassie Nigus Shitaw, Yosef Nikodimos, Bereket Woldegbreal Taklu, Keseven Lakshmanan, Sheng-Chiang Yang, Shi-Kai Jiang, Chen-Jui Huang,et al.
Elsevier BV - Resolving anodic and cathodic interface-incompatibility in solid-state lithium metal battery via interface infiltration of designed liquid electrolytes
Yosef Nikodimos, Wei-Nien Su, Bereket Woldegbreal Taklu, Semaw Kebede Merso, Teklay Mezgebe Hagos, Chen-Jui Huang, Haylay Ghidey Redda, Chia-Hsin Wang, She-Huang Wu, Chun-Chen Yang,et al.
Elsevier BV - Highly Active Oxygen Coordinated Configuration of Fe Single-Atom Catalyst toward Electrochemical Reduction of CO<inf>2</inf> into Multi-Carbon Products
Keseven Lakshmanan, Wei‐Hsiang Huang, Soressa Abera Chala, Bereket Woldegbreal Taklu, Endalkachew Asefa Moges, Jyh‐Fu Lee, Pei‐Yu Huang, Yao‐Chang Lee, Meng‐Che Tsai, Wei‐Nien Su,et al.
Wiley
Electrochemical reduction of carbon dioxide (CO2RR) into value‐added chemicals is a promising tactic to mitigate global warming. However, this process resists catalyst preparation, low faradaic efficiency (FE%) towards multi‐carbon products, and insights into mechanistic understanding. Indeed, it is demonstrated that this Fe single‐atom catalyst (Fe SAC) exists in three oxygen coordination of Fe–(O)3 configuration in Nafion coated functionalized multi‐wall carbon nanotubes (Fe‐n‐f‐CNTs), which is obtained via a simple ionic exchange method under ambient conditions. The electrochemical performance reveals that Fe SACs achieve an FE of 45% and a yield rate of 56.42 µmol cm−2 h−1 at −0.8 VRHE for ethanol. In situ X‐ray analysis reveals that the Fe SACs have variable electronic states and keeps close +3 of the oxidation state at the potential range of CO2RR. The catalytic feature reduces the reaction energy and induces the electrons transferred to the adsorbed products intermediates of *COOH and *OCHO, thus promoting CO. The carboxylic functional group on the CNTs stabilizes the Fe active sites via electrostatic interaction, verified by density functional theory calculations. The yield rate of Fe SACs indicates that the Fe single‐atom site can instantly provide a large CO to help conversion of CO2‐to‐C2 product on the CNTs. - Chemical stability of sulfide solid-state electrolytes: stability toward humid air and compatibility with solvents and binders
Yosef Nikodimos, Chen-Jui Huang, Bereket Woldegbreal Taklu, Wei-Nien Su, and Bing Joe Hwang
Royal Society of Chemistry (RSC)
Sulfide solid electrolyte (S-SE) based all-solid-state batteries (ASSBs) have received particular attention due to their outstanding ionic conductivity and higher energy density over conventional lithium-ion batteries. - Dual CuCl doped argyrodite superconductor to boost the interfacial compatibility and air stability for all solid-state lithium metal batteries
Bereket Woldegbreal Taklu, Wei-Nien Su, Yosef Nikodimos, Keseven Lakshmanan, Nigusu Tiruneh Temesgen, Pei-Xuan Lin, Shi-Kai Jiang, Chen-Jui Huang, Di-Yan Wang, Hwo-Shuenn Sheu,et al.
Elsevier BV - Mitigating dendrite formation and electrolyte decomposition via functional double layers coating on copper current collector in anode-free lithium metal battery
Nigusu Tiruneh Temesgen, Wodaje Addis Tegegne, Kassie Nigus Shitaw, Fekadu Wubatu Fenta, Yosef Nikodimos, Bereket Woldegbreal Taklu, Shi-Kai Jiang, Chen-Jui Huang, She-Huang Wu, Wei-Nien Su,et al.
Elsevier BV - Synergetic effect of water-in-bisalt electrolyte and hydrogen-bond rich additive improving the performance of aqueous batteries
Teshome Assefa Nigatu, Hailemariam Kassa Bezabh, Bereket Woldegbreal Taklu, Bizualem Wakuma Olbasa, Yu-Ting Weng, She-Huang Wu, Wei-Nien Su, Chun-Chen Yang, and Bing Joe Hwang
Elsevier BV