Version 1
: Received: 7 August 2018 / Approved: 7 August 2018 / Online: 7 August 2018 (13:18:20 CEST)
How to cite:
Cho, S.; Kim, S.; Kim, W.; Kim, S.; Ahn, S. A New All-Solid-State Lithium-Ion Battery Working without a Separator in an Electrolyte. Preprints2018, 2018080145. https://doi.org/10.20944/preprints201808.0145.v1
Cho, S.; Kim, S.; Kim, W.; Kim, S.; Ahn, S. A New All-Solid-State Lithium-Ion Battery Working without a Separator in an Electrolyte . Preprints 2018, 2018080145. https://doi.org/10.20944/preprints201808.0145.v1
Cho, S.; Kim, S.; Kim, W.; Kim, S.; Ahn, S. A New All-Solid-State Lithium-Ion Battery Working without a Separator in an Electrolyte. Preprints2018, 2018080145. https://doi.org/10.20944/preprints201808.0145.v1
APA Style
Cho, S., Kim, S., Kim, W., Kim, S., & Ahn, S. (2018). A New All-Solid-State Lithium-Ion Battery Working without a Separator in an Electrolyte<strong> </strong>. Preprints. https://doi.org/10.20944/preprints201808.0145.v1
Chicago/Turabian Style
Cho, S., Seok Kim and Sungsook Ahn. 2018 "A New All-Solid-State Lithium-Ion Battery Working without a Separator in an Electrolyte<strong> </strong>" Preprints. https://doi.org/10.20944/preprints201808.0145.v1
Abstract
Considering the safety issues of Li ion batteries, all-solid-state polymer electrolyte has been one of the promising solutions. In this point, achieving a Li ion conductivity in the solid state electrolytes comparable to liquid electrolytes (>1 mS/cm) is particularly challenging. Employment of polyethylene oxide (PEO) solid electrolyte has not been not enough in this point due to high crystallinity. In this study, hybrid solid electrolyte (HSE) systems are designed with Li1.3Al0.3Ti0.7(PO4)3(LATP), PEO and Lithium hexafluorophosphate (LiPF6) or Lithium bis(trifluoromethanesulfonyl)imide (LiTFSI). Hybrid solid cathode (HSC) is also designed using LATP, PEO and lithium cobalt oxide (LiCoO2, LCO)—lithium manganese oxide (LiMn2O4, LMO). The designed HSE system displays 3.0 × 10−4 S/cm (55 ℃) and 1.8 × 10−3 S/cm (23 ℃) with an electrochemical stability as of 6.0 V without any separation layer introduction. Li metal (anode)/HSE/HSC cell in this study displays initial charge capacity as of 123.4/102.7 mAh/g (55 ℃) and 73/57 mAh/g (25 °C). To these systems, Succinonitrile (SN) has been incorporated as a plasticizer for practical secondary Li ion battery system development to enhance ionic conductivity. The incorporated SN effectively increases the ionic conductivity without any leakage and short-circuits even under broken cell condition. The developed system also overcomes the typical disadvantages of internal resistance induced by Ti ion reduction. In this study, optimized ionic conductivity and low internal resistance inside the Li ion battery cell have been obtained, which suggests a new possibility in the secondary Li ion battery development.
Copyright:
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
