Search Results - "IWAMA, Etsuro"

Internal resistance mapping preparation to optimize electrode thickness and density using symmetric cell for high-performance lithium-ion batteries and capacitors by Kisu, Kazuaki, Aoyagi, Shintaro, Nagatomo, Haruka, Iwama, Etsuro, Reid, McMahon Thomas Homer, Naoi, Wako, Naoi, Katsuhiko

“…Methods for characterizing and optimizing the internal resistance of electrodes are crucial for achieving the simultaneous goals of high energy density and…”
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Prolonged Electrochemical Cycling Characteristics of ZnSiP2 Prepared with Mixed Crystalline-Amorphous Domains by IWAMA, Etsuro, TAKAZAWA, Toyomi, MATSUYAMA, Koji, YAMAGUCHI, Daisuke

“…This paper presents an innovative approach wherein mechanical alloying and mechanical cation-disordering techniques are combined to synthesize peculiar zinc…”
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Enhanced Electrochemical Performance of Ultracentrifugation-Derived nc-Li3VO4/MWCNT Composites for Hybrid Supercapacitors by Iwama, Etsuro, Kawabata, Nozomi, Nishio, Nagare, Kisu, Kazuaki, Miyamoto, Junichi, Naoi, Wako, Rozier, Patrick, Simon, Patrice, Naoi, Katsuhiko

“…Nanocrystalline Li3VO4 dispersed within multiwalled carbon nanotubes (MWCNTs) was prepared using an ultracentrifugation (uc) process and electrochemically…”
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Degradation of Li3V2(PO4)3-based full-cells containing Li4Ti5O12 or Li3.2V0.8Si0.2O4 anodes modeled by charge-discharge cycling simulations by Chikaoka, Yu, Okuda, Reiko, Hashimoto, Taiga, Kuwao, Masafumi, Naoi, Wako, Iwama, Etsuro, Naoi, Katsuhiko

“…•Cycling performance of two Li3V2(PO4)3-based full-cell types is evaluated.•Cell degradation is analyzed using charge–discharge simulations and…”
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Recent Advances in Supercapacitors: Ultrafast Materials Make Innovations by OKITA, Naohisa, IWAMA, Etsuro, NAOI, Katsuhiko

“…Electrical energy storage (EES) devices are at the core of the environmental technologies that are highly influential in advancing our life in a future…”
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Impact of Total Ionic- and Individual Li+‑Conduction in Dual-Cation Electrolytes on Power Performances for Thick Electrode Li4Ti5O12//AC Hybrid Capacitors by Chikaoka, Yu, Iwama, Etsuro, Sakurai, Masato, Ueda, Tsukasa, Shirane, Tomohide, Naoi, Wako, Naoi, Katsuhiko

“…The utilization of dual-cation electrolytes constructed with a Li-based electrolyte (LiBF4) and an additional supporting electrolyte (quaternary ammonium salts…”
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Controlling the Phase Separation of Dimethyl Carbonate Solvents Using a Dual-Cation System: Applications in High-Power Lithium Ion-Based Hybrid Capacitors by Chikaoka, Yu, Ochi, Riko, Fujii, Kenta, Ariga, Takaaki, Sakurai, Masato, Matsumoto, Ayuna, Ueda, Tsukasa, Iwama, Etsuro, Naoi, Katsuhiko

“…To achieve lithium ion-based energy storage devices having high power densities and stabilities, the use of a low-viscosity and low-dielectric-constant solvent…”
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Prolonged Electrochemical Cycling Characteristics of ZnSiP2 Prepared with Mixed Crystalline-Amorphous Domains by IWAMA, Etsuro, TAKAZAWA, Toyomi, MATSUYAMA, Koji, YAMAGUCHI, Daisuke

“…This paper presents an innovative approach wherein mechanical alloying and mechanical cation-disordering techniques are combined to synthesize peculiar zinc…”
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Capacitive deionization concept based on suspension electrodes without ion exchange membranes by Hatzell, Kelsey B., Iwama, Etsuro, Ferris, Anais, Daffos, Barbara, Urita, Koki, Tzedakis, Théodore, Chauvet, Fabien, Taberna, Pierre-Louis, Gogotsi, Yury, Simon, Patrice

“…A new type of capacitive deionization (CDI) system, based on capacitive suspension electrodes (CSEs), was developed for the purpose of desalting brackish and…”
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Dual-cation electrolytes for low H2 gas generation in Li4Ti5O12//AC hybrid capacitor system by Chikaoka, Yu, Iwama, Etsuro, Seto, Shinichi, Okuno, Yuta, Shirane, Tomohide, Ueda, Tsukasa, Naoi, Wako, Reid, McMahon Thomas Homer, Naoi, Katsuhiko

“…•Dual-cation system (LiBF4 with SBPBF4) suppressed H2 gas in LTO//AC hybrid capacitor.•50% reduction of generated H2 volume was achieved by use of dual-cation…”
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Ultrafast Nanocrystalline-TiO2(B)/Carbon Nanotube Hyperdispersion Prepared via Combined Ultracentrifugation and Hydrothermal Treatments for Hybrid Supercapacitors by Naoi, Katsuhiko, Kurita, Takayuki, Abe, Masayuki, Furuhashi, Takumi, Abe, Yuta, Okazaki, Keita, Miyamoto, Junichi, Iwama, Etsuro, Aoyagi, Shintaro, Naoi, Wako, Simon, Patrice

“…Anisotropically grown (b‐axis short) single‐nano TiO2(B), uniformly hyper‐dispersed on the surface of multiwalled carbon nanotubes (MWCNT), was successfully…”
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Unveiling Pseudocapacitive Charge Storage Behavior in FeWO4 Electrode Material by Operando X‐Ray Absorption Spectroscopy by Goubard‐Bretesché, Nicolas, Crosnier, Olivier, Douard, Camille, Iadecola, Antonella, Retoux, Richard, Payen, Christophe, Doublet, Marie‐Liesse, Kisu, Kazuaki, Iwama, Etsuro, Naoi, Katsuhiko, Favier, Frédéric, Brousse, Thierry

“…In nanosized FeWO4 electrode material, both Fe and W metal cations are suspected to be involved in the fast and reversible Faradaic surface reactions giving…”
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High-voltage operation of Li4Ti5O12/AC hybrid supercapacitor cell in carbonate and sulfone electrolytes: Gas generation and its characterization by Iwama, Etsuro, Ueda, Tsukasa, Ishihara, Yoko, Ohshima, Kenji, Naoi, Wako, Reid, McMahon Thomas Homer, Naoi, Katsuhiko

“…Designing a hybrid supercapacitor, composed of Li4Ti5O12(LTO)/activated carbon (AC), is one of promising routes to enhance the energy density of…”
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Noncrystalline Nanocomposites as a Remedy for the Low Diffusivity of Multivalent Ions in Battery Cathodes by Orikasa, Yuki, Kisu, Kazuaki, Iwama, Etsuro, Naoi, Wako, Yamaguchi, Yusuke, Yamaguchi, Yoshitomo, Okita, Naohisa, Ohara, Koji, Munesada, Toshiyuki, Hattori, Masashi, Yamamoto, Kentaro, Rozier, Patrick, Simon, Patrice, Naoi, Katsuhiko

“…Rechargeable batteries using multivalent metals are among the most promising next-generation battery systems due to their high capacity, high safety, and low…”
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Dual-Cation Electrolytes for High-Power and High-Energy LTO//AC Hybrid Capacitors by Chikaoka, Yu, Iwama, Etsuro, Ueda, Tsukasa, Miyashita, Natsuki, Seto, Shinichi, Sakurai, Masato, Naoi, Wako, Reid, McMahon Thomas Homer, Simon, Patrice, Naoi, Katsuhiko

“…Dual-cation electrolyte systems, which contain two cations [Li+ and spiro-1,1′-bipyrrolidinium (SBP+), are proposed to enhance the power capability of hybrid…”
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Strategy for Cyclability Prolongation of Li3VO4//Li3V2(PO4)3 Full Cells Based on Charge-Discharge Cycling Simulation by CHIKAOKA, Yu, OKUDA, Reiko, IWAMA, Etsuro, KUWAO, Masafumi, NAOI, Wako, NAOI, Katsuhiko

“…Full cells employing Li3VO4 (LVO) and Li3V2(PO4)3 (LVP) as anode and cathode, respectively, are energy storage devices offering high power and cyclability…”
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Stabilizing the Structure of LiCoPO4 Nanocrystals via Addition of Fe3+: Formation of Fe3+ Surface Layer, Creation of Diffusion-Enhancing Vacancies, and Enabling High-Voltage Battery Operation by Okita, Naohisa, Kisu, Kazuaki, Iwama, Etsuro, Sakai, Yuki, Lim, Yiyo, Takami, Yusuke, Sougrati, Moulay Tahar, Brousse, Thierry, Rozier, Patrick, Simon, Patrice, Naoi, Wako, Naoi, Katsuhiko

“…Factors affecting the cyclability of the Fe-substituted LiCoPO4 (LiCo0.8Fe0.2PO4, LCFP) material were elucidated, including both the structural and…”
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Progress of the conversion reaction of Mn3O4 particles as a function of the depth of discharge by Yonekura, Daisuke, Iwama, Etsuro, Ota, Naoki, Muramatsu, Masanori, Saito, Morihiro, Orikasa, Yuki, Naoi, Wako, Naoi, Katsuhiko

“…A comprehensive investigation of the morphological and interfacial changes of Mn3O4 particles at different lithiation stages was performed in order to improve…”
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Electrochemical kinetics of nanostructure LiFePO 4 /graphitic carbon electrodes by Kisu, Kazuaki, Iwama, Etsuro, Naoi, Wako, Simon, Patrice, Naoi, Katsuhiko

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The origin of stability and high Co2+/3+ redox utilization for FePO4-coated LiCo0.90Ti0.05PO4/MWCNT nanocomposites for 5 V class lithium ion batteries by Okita, Naohisa, Iwama, Etsuro, Takami, Yusuke, Abo, Shingo, Naoi, Wako, Rozier, Patrick, Simon, Patrice, McMahon Thomas Homer Reid, Naoi, Katsuhiko

“…Highly-dispersed 10 wt% FePO4 (FP)-coated LiCo0.90Ti0.05PO4 (LCTP) was successfully synthesized within a multiwalled carbon nanotube matrix via our original…”
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