Bendable and thin sulfide solid electrolyte film: a new electrolyte opportunity for free-standing and stackable high-energy all-solid-state lithium-ion batteries.
Bulk-type all-solid-state lithium batteries (ASLBs) are considered a promising candidate to outperform the conventional lithium-ion batteries. Unfortunately, the current technology level of ASLBs is in a stage of infancy in terms of cell-based (not electrode-material-based) energy densities and scalable fabrication. Here, we report on the first ever bendable and thin sulfide solid electrolyte films reinforced with a mechanically compliant poly(paraphenylene terephthalamide) nonwoven (NW) scaffold, which enables the fabrication of free-standing and stackable ASLBs with high energy density and high rate capabilities. The ASLB, using a thin (∼70 μm) NW-reinforced SE film, exhibits a 3-fold increase of the cell-energy-density compared to that of a conventional cell without the NW scaffold.
Young Jin
YJ
Nam
Sung-Ju
SJ
Cho
Dae Yang
DY
Oh
Jun-Muk
JM
Lim
Sung Youb
SY
Kim
§Advanced Batteries Research Center, Korea Electronics Technology Institute (KETI), 68 Yatap-dong, Bundang-gu, Seongnam-si, Gyeonggi-do 463-816, South Korea.
Jun Ho
JH
Song
∥Power Control Device Research Team, Electronics and Telecommunications Research Institute (ETRI), 218, Gajeongno, Yuseong-gu, Daejeon, 305-700, South Korea.
Young-Gi
YG
Lee
Sang-Young
SY
Lee
Yoon Seok
YS
Jung
All-solid-state lithium batteries; bendable sulfide solid electrolytes; composite materials; electrodes; nanostructures; nonwovens