Fabrication and Evaluation of Pouch-Type All-Solid-State Lithium-Ion Batteries

Demands in lithium-ion batteries (LIBs) have been expanded with the development of next-generation energy storage, such as electric vehicles and energy storage systems. However, safety issues of LIBs have been major obstacles in recent years. In this regard, all-solid-state batteries (ASSBs) have emerged as one of the most promising alternatives. Especially, there has been remarkable development in the study of ASSBs employing sulfide solid electrolytes (SEs). Due to the high ionic conductivities and mechanical sinterability of sulfide SEs, ASSBs employing sulfide SEs outperform those fabricated with others such as oxides SEs. Thus far, most studies of ASSB cells using sulfide SEs have been reported with powder-based uniaxial-pressurized cells. Meanwhile, the development of pouch -type ASSBs based on the sheet-type electrodes and SE membranes is required for practical application and fundamental studies at the relevant systems. Furthermore, the development of pouch-type ASSBs is effective fabrication protocol to realize ASSBs with high energy density.<br/>In this presentation, practical design strategies for pouch-type ASSBs employing sulfide SEs and corresponding electrochemical performances are presented.<br/><br/><b>References</b><br/>[1] <i>Adv. Energy Mater</i>. <b>2018</b>, <i>8</i>, 1800035.<br/>[2] <i>Nano Lett</i>. <b>2015</b>, <i>15</i>, 3317–3323. <br/>[3] <i>Journal of Power Sources</i>. <b>2018</b>, <i>375</i>, 93−101.<br/>[4] <i>Adv. Energy Mater</i>. <b>2019</b>, <i>9(16)</i>, 1802927.