Analyzing the Effect of Nano-Sized Conductive Additive Content on Cathode Electrode Performance in Sulfide All-Solid-State Lithium-Ion Batteries

All-solid-state lithium-ion batteries (ASSLBs) have recently received significant attention due to their exceptional energy/power densities, inherent safety, and long-term electrochemical stability. However, to achieve energy- and power-dense ASSLBs, the cathode composite electrodes require optimum...

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Main Authors: Jae Hong Choi, Sumyeong Choi, Tom James Embleton, Kyungmok Ko, Kashif Saleem Saqib, Jahanzaib Ali, Mina Jo, Junhyeok Hwang, Sungwoo Park, Minhu Kim, Mingi Hwang, Heesoo Lim, Pilgun Oh
Format: Article
Language:English
Published: MDPI AG 2023-12-01
Series:Energies
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Online Access:https://www.mdpi.com/1996-1073/17/1/109
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author Jae Hong Choi
Sumyeong Choi
Tom James Embleton
Kyungmok Ko
Kashif Saleem Saqib
Jahanzaib Ali
Mina Jo
Junhyeok Hwang
Sungwoo Park
Minhu Kim
Mingi Hwang
Heesoo Lim
Pilgun Oh
author_facet Jae Hong Choi
Sumyeong Choi
Tom James Embleton
Kyungmok Ko
Kashif Saleem Saqib
Jahanzaib Ali
Mina Jo
Junhyeok Hwang
Sungwoo Park
Minhu Kim
Mingi Hwang
Heesoo Lim
Pilgun Oh
author_sort Jae Hong Choi
collection DOAJ
description All-solid-state lithium-ion batteries (ASSLBs) have recently received significant attention due to their exceptional energy/power densities, inherent safety, and long-term electrochemical stability. However, to achieve energy- and power-dense ASSLBs, the cathode composite electrodes require optimum ionic and electrical pathways and hence the development of electrode designs that facilitate such requirements is necessary. Among the various available conductive materials, carbon black (CB) is typically considered as a suitable carbon additive for enhancing electrode conductivity due to its affordable price and electrical-network-enhancing properties. In this study, we examined the effect of different weight percentages (wt%) of nano-sized CB as a conductive additive within a cathode composite made up of Ni-rich cathode material (LiNi<sub>0.8</sub>Co<sub>0.1</sub>Mn<sub>0.1</sub>O<sub>2</sub>) and solid electrolyte (Li<sub>6</sub>PS<sub>5</sub>Cl). Composites including 3 wt%, 5 wt%, and 7 wt% CB were produced, achieving capacity retentions of 66.1%, 65.4%, and 44.6% over 50 cycles at 0.5 C. Despite an increase in electrical conductivity of the 7 wt% CB sample, a significantly lower capacity retention was observed. This was attributed to the increased resistance at the solid electrolyte/cathode material interface, resulting from the presence of excessive CB. This study confirms that an excessive amount of nano-sized conductive material can affect the interfacial resistance between the solid electrolyte and the cathode active material, which is ultimately more important to the electrochemical performance than the electrical pathways.
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spelling doaj.art-14904772425e4528bbfabf1259b613112024-01-10T14:55:50ZengMDPI AGEnergies1996-10732023-12-0117110910.3390/en17010109Analyzing the Effect of Nano-Sized Conductive Additive Content on Cathode Electrode Performance in Sulfide All-Solid-State Lithium-Ion BatteriesJae Hong Choi0Sumyeong Choi1Tom James Embleton2Kyungmok Ko3Kashif Saleem Saqib4Jahanzaib Ali5Mina Jo6Junhyeok Hwang7Sungwoo Park8Minhu Kim9Mingi Hwang10Heesoo Lim11Pilgun Oh12Department of Smart Green Technology Engineering, Pukyong National University, 45, Yongso-ro, Nam-gu, Busan 48547, Republic of KoreaDepartment of Smart Green Technology Engineering, Pukyong National University, 45, Yongso-ro, Nam-gu, Busan 48547, Republic of KoreaDepartment of Smart Green Technology Engineering, Pukyong National University, 45, Yongso-ro, Nam-gu, Busan 48547, Republic of KoreaDepartment of Smart Green Technology Engineering, Pukyong National University, 45, Yongso-ro, Nam-gu, Busan 48547, Republic of KoreaDepartment of Smart Green Technology Engineering, Pukyong National University, 45, Yongso-ro, Nam-gu, Busan 48547, Republic of KoreaDepartment of Smart Green Technology Engineering, Pukyong National University, 45, Yongso-ro, Nam-gu, Busan 48547, Republic of KoreaDepartment of Smart Green Technology Engineering, Pukyong National University, 45, Yongso-ro, Nam-gu, Busan 48547, Republic of KoreaDepartment of Smart Green Technology Engineering, Pukyong National University, 45, Yongso-ro, Nam-gu, Busan 48547, Republic of KoreaDepartment of Smart Green Technology Engineering, Pukyong National University, 45, Yongso-ro, Nam-gu, Busan 48547, Republic of KoreaDepartment of Smart Green Technology Engineering, Pukyong National University, 45, Yongso-ro, Nam-gu, Busan 48547, Republic of KoreaDepartment of Smart Green Technology Engineering, Pukyong National University, 45, Yongso-ro, Nam-gu, Busan 48547, Republic of KoreaDepartment of Smart Green Technology Engineering, Pukyong National University, 45, Yongso-ro, Nam-gu, Busan 48547, Republic of KoreaDepartment of Smart Green Technology Engineering, Pukyong National University, 45, Yongso-ro, Nam-gu, Busan 48547, Republic of KoreaAll-solid-state lithium-ion batteries (ASSLBs) have recently received significant attention due to their exceptional energy/power densities, inherent safety, and long-term electrochemical stability. However, to achieve energy- and power-dense ASSLBs, the cathode composite electrodes require optimum ionic and electrical pathways and hence the development of electrode designs that facilitate such requirements is necessary. Among the various available conductive materials, carbon black (CB) is typically considered as a suitable carbon additive for enhancing electrode conductivity due to its affordable price and electrical-network-enhancing properties. In this study, we examined the effect of different weight percentages (wt%) of nano-sized CB as a conductive additive within a cathode composite made up of Ni-rich cathode material (LiNi<sub>0.8</sub>Co<sub>0.1</sub>Mn<sub>0.1</sub>O<sub>2</sub>) and solid electrolyte (Li<sub>6</sub>PS<sub>5</sub>Cl). Composites including 3 wt%, 5 wt%, and 7 wt% CB were produced, achieving capacity retentions of 66.1%, 65.4%, and 44.6% over 50 cycles at 0.5 C. Despite an increase in electrical conductivity of the 7 wt% CB sample, a significantly lower capacity retention was observed. This was attributed to the increased resistance at the solid electrolyte/cathode material interface, resulting from the presence of excessive CB. This study confirms that an excessive amount of nano-sized conductive material can affect the interfacial resistance between the solid electrolyte and the cathode active material, which is ultimately more important to the electrochemical performance than the electrical pathways.https://www.mdpi.com/1996-1073/17/1/109conductive additivesuper Ccarbon nanofiberall-solid-state lithium batteriesmorphology
spellingShingle Jae Hong Choi
Sumyeong Choi
Tom James Embleton
Kyungmok Ko
Kashif Saleem Saqib
Jahanzaib Ali
Mina Jo
Junhyeok Hwang
Sungwoo Park
Minhu Kim
Mingi Hwang
Heesoo Lim
Pilgun Oh
Analyzing the Effect of Nano-Sized Conductive Additive Content on Cathode Electrode Performance in Sulfide All-Solid-State Lithium-Ion Batteries
Energies
conductive additive
super C
carbon nanofiber
all-solid-state lithium batteries
morphology
title Analyzing the Effect of Nano-Sized Conductive Additive Content on Cathode Electrode Performance in Sulfide All-Solid-State Lithium-Ion Batteries
title_full Analyzing the Effect of Nano-Sized Conductive Additive Content on Cathode Electrode Performance in Sulfide All-Solid-State Lithium-Ion Batteries
title_fullStr Analyzing the Effect of Nano-Sized Conductive Additive Content on Cathode Electrode Performance in Sulfide All-Solid-State Lithium-Ion Batteries
title_full_unstemmed Analyzing the Effect of Nano-Sized Conductive Additive Content on Cathode Electrode Performance in Sulfide All-Solid-State Lithium-Ion Batteries
title_short Analyzing the Effect of Nano-Sized Conductive Additive Content on Cathode Electrode Performance in Sulfide All-Solid-State Lithium-Ion Batteries
title_sort analyzing the effect of nano sized conductive additive content on cathode electrode performance in sulfide all solid state lithium ion batteries
topic conductive additive
super C
carbon nanofiber
all-solid-state lithium batteries
morphology
url https://www.mdpi.com/1996-1073/17/1/109
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