Amorphous Titanium Sulfide Electrode for All-solid-state Rechargeable Lithium Batteries with High Capacity

2012 ◽  
Vol 41 (9) ◽  
pp. 886-888 ◽  
Author(s):  
Akitoshi Hayashi ◽  
Takuya Matsuyama ◽  
Atsushi Sakuda ◽  
Masahiro Tatsumisago
Keyword(s):  
Solid State ◽  
Lithium Batteries ◽  
High Capacity ◽  
Rechargeable Lithium Batteries ◽  
Titanium Sulfide

scholarly journals High-capacity electrode materials for rechargeable lithium batteries: Li3NbO4-based system with cation-disordered rocksalt structure

2015 ◽  
Vol 112 (25) ◽  
pp. 7650-7655 ◽  
Author(s):  
Naoaki Yabuuchi ◽  
Mitsue Takeuchi ◽  
Masanobu Nakayama ◽  
Hiromasa Shiiba ◽  
Masahiro Ogawa ◽  
...  
Keyword(s):  
Solid State ◽  
Transition Metals ◽  
Lithium Batteries ◽  
Electrode Materials ◽  
High Capacity ◽  
Reversible Capacity ◽  
Charge Compensation ◽  
Rechargeable Lithium Batteries ◽  
High Reversible Capacity ◽  
Oxide Ions

Rechargeable lithium batteries have rapidly risen to prominence as fundamental devices for green and sustainable energy development. Lithium batteries are now used as power sources for electric vehicles. However, materials innovations are still needed to satisfy the growing demand for increasing energy density of lithium batteries. In the past decade, lithium-excess compounds, Li2MeO3 (Me = Mn4+, Ru4+, etc.), have been extensively studied as high-capacity positive electrode materials. Although the origin as the high reversible capacity has been a debatable subject for a long time, recently it has been confirmed that charge compensation is partly achieved by solid-state redox of nonmetal anions (i.e., oxide ions), coupled with solid-state redox of transition metals, which is the basic theory used for classic lithium insertion materials, such as LiMeO2 (Me = Co3+, Ni3+, etc.). Herein, as a compound with further excess lithium contents, a cation-ordered rocksalt phase with lithium and pentavalent niobium ions, Li3NbO4, is first examined as the host structure of a new series of high-capacity positive electrode materials for rechargeable lithium batteries. Approximately 300 mAh⋅g−1 of high-reversible capacity at 50 °C is experimentally observed, which partly originates from charge compensation by solid-state redox of oxide ions. It is proposed that such a charge compensation process by oxide ions is effectively stabilized by the presence of electrochemically inactive niobium ions. These results will contribute to the development of a new class of high-capacity electrode materials, potentially with further lithium enrichment (and fewer transition metals) in the close-packed framework structure with oxide ions.

High Capacity All-Solid-State Lithium Batteries Enabled by Pyrite-Sulfur Composites

2018 ◽  
Vol 8 (26) ◽  
pp. 1801462 ◽  
Author(s):  
Ulderico Ulissi ◽  
Seitaro Ito ◽  
Seyed Milad Hosseini ◽  
Alberto Varzi ◽  
Yuichi Aihara ◽  
...  
Keyword(s):  
Solid State ◽  
Lithium Batteries ◽  
High Capacity

scholarly journals Freestanding all-solid-state rechargeable lithium batteries with in-situ formed positive electrodes

2019 ◽  
Vol 337 ◽  
pp. 19-23 ◽  
Author(s):  
Takayuki Yamamoto ◽  
Yu Sugiura ◽  
Hiroki Iwasaki ◽  
Munekazu Motoyama ◽  
Yasutoshi Iriyama
Keyword(s):  
Solid State ◽  
Lithium Batteries ◽  
Rechargeable Lithium Batteries ◽  
Positive Electrodes
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