Highly electrochemically stable Li2B12H12-Al2O3 nanocomposite electrolyte enabling A 3.8 V room-temperature all-solid-state Li-ion battery

Chongyang Zhou; Han Sun; Qian Wang; Jakob B. Grinderslev; Dan Liu; Yigang Yan; Torben R. Jensen

doi:10.1016/j.jallcom.2022.168689

Highly electrochemically stable Li₂B₁₂H₁₂-Al₂O₃ nanocomposite electrolyte enabling A 3.8 V room-temperature all-solid-state Li-ion battery

Chongyang Zhou, Han Sun, Qian Wang, Jakob B. Grinderslev, Dan Liu^*, Yigang Yan^*, Torben R. Jensen^*

^*Corresponding author for this work

Research output: Contribution to journal/Conference contribution in journal/Contribution to newspaper › Journal article › Research › peer-review

9 Citations (Scopus)

Abstract

Designing solid electrolytes for all-solid-state lithium batteries that can be compatible with high-voltage cathodes is challenging. Here we report that the nanocomposite Li₂B₁₂H₁₂-Al₂O₃ mechano-chemically treated for 120 h achieves an electrochemical stability window up to ∼ 3.8 V owing to the interfacial interaction via B-O bonds and a high lithium ionic conductivity, σ(Li⁺) = 2.73 × 10⁻⁵ S cm⁻¹ at 30 °C. Moreover, this electrolyte shows high compatibility with the lithium metal anode as demonstrated by stable Li plating/stripping for 300 cycles. These electrolyte properties enable the first demonstration of a 3.8 V all-solid-state battery In_1.3Li_0.3|Li₂B₁₂H₁₂-Al₂O₃ (25 vol%)|LiNi_0.8Co_0.1Mn_0.1O₂ (NCM811) operating for 120 cycles with a rate of 0.2 C and at 30 °C, with a reversible specific capacity of 77.5 mAh g⁻¹ and Coulombic efficiency of 99.8 %. The results demonstrate the potential of hydroborates as electrolyte for all-solid-state lithium batteries.

Original language	English
Article number	168689
Journal	Journal of Alloys and Compounds
Volume	938
Number of pages	8
ISSN	0925-8388
DOIs	https://doi.org/10.1016/j.jallcom.2022.168689
Publication status	Published - Mar 2023

Keywords

All-solid-state battery
Electrochemical stability
Hydroborates
Solid-state electrolyte

Access to Document

10.1016/j.jallcom.2022.168689

Cite this

@article{dd2542636b094bf8988508ac6b162387,

title = "Highly electrochemically stable Li2B12H12-Al2O3 nanocomposite electrolyte enabling A 3.8 V room-temperature all-solid-state Li-ion battery",

abstract = "Designing solid electrolytes for all-solid-state lithium batteries that can be compatible with high-voltage cathodes is challenging. Here we report that the nanocomposite Li2B12H12-Al2O3 mechano-chemically treated for 120 h achieves an electrochemical stability window up to ∼ 3.8 V owing to the interfacial interaction via B-O bonds and a high lithium ionic conductivity, σ(Li+) = 2.73 × 10−5 S cm−1 at 30 °C. Moreover, this electrolyte shows high compatibility with the lithium metal anode as demonstrated by stable Li plating/stripping for 300 cycles. These electrolyte properties enable the first demonstration of a 3.8 V all-solid-state battery In1.3Li0.3|Li2B12H12-Al2O3 (25 vol%)|LiNi0.8Co0.1Mn0.1O2 (NCM811) operating for 120 cycles with a rate of 0.2 C and at 30 °C, with a reversible specific capacity of 77.5 mAh g−1 and Coulombic efficiency of 99.8 %. The results demonstrate the potential of hydroborates as electrolyte for all-solid-state lithium batteries.",

keywords = "All-solid-state battery, Electrochemical stability, Hydroborates, Solid-state electrolyte",

author = "Chongyang Zhou and Han Sun and Qian Wang and Grinderslev, {Jakob B.} and Dan Liu and Yigang Yan and Jensen, {Torben R.}",

note = "Publisher Copyright: {\textcopyright} 2023",

year = "2023",

month = mar,

doi = "10.1016/j.jallcom.2022.168689",

language = "English",

volume = "938",

journal = "Journal of Alloys and Compounds",

issn = "0925-8388",

publisher = "Elsevier B.V.",

}

Highly electrochemically stable Li₂B₁₂H₁₂-Al₂O₃ nanocomposite electrolyte enabling A 3.8 V room-temperature all-solid-state Li-ion battery. / Zhou, Chongyang; Sun, Han; Wang, Qian et al.
In: Journal of Alloys and Compounds, Vol. 938, 168689, 03.2023.

Research output: Contribution to journal/Conference contribution in journal/Contribution to newspaper › Journal article › Research › peer-review

TY - JOUR

T1 - Highly electrochemically stable Li2B12H12-Al2O3 nanocomposite electrolyte enabling A 3.8 V room-temperature all-solid-state Li-ion battery

AU - Zhou, Chongyang

AU - Sun, Han

AU - Wang, Qian

AU - Grinderslev, Jakob B.

AU - Liu, Dan

AU - Yan, Yigang

AU - Jensen, Torben R.

PY - 2023/3

Y1 - 2023/3

N2 - Designing solid electrolytes for all-solid-state lithium batteries that can be compatible with high-voltage cathodes is challenging. Here we report that the nanocomposite Li2B12H12-Al2O3 mechano-chemically treated for 120 h achieves an electrochemical stability window up to ∼ 3.8 V owing to the interfacial interaction via B-O bonds and a high lithium ionic conductivity, σ(Li+) = 2.73 × 10−5 S cm−1 at 30 °C. Moreover, this electrolyte shows high compatibility with the lithium metal anode as demonstrated by stable Li plating/stripping for 300 cycles. These electrolyte properties enable the first demonstration of a 3.8 V all-solid-state battery In1.3Li0.3|Li2B12H12-Al2O3 (25 vol%)|LiNi0.8Co0.1Mn0.1O2 (NCM811) operating for 120 cycles with a rate of 0.2 C and at 30 °C, with a reversible specific capacity of 77.5 mAh g−1 and Coulombic efficiency of 99.8 %. The results demonstrate the potential of hydroborates as electrolyte for all-solid-state lithium batteries.

AB - Designing solid electrolytes for all-solid-state lithium batteries that can be compatible with high-voltage cathodes is challenging. Here we report that the nanocomposite Li2B12H12-Al2O3 mechano-chemically treated for 120 h achieves an electrochemical stability window up to ∼ 3.8 V owing to the interfacial interaction via B-O bonds and a high lithium ionic conductivity, σ(Li+) = 2.73 × 10−5 S cm−1 at 30 °C. Moreover, this electrolyte shows high compatibility with the lithium metal anode as demonstrated by stable Li plating/stripping for 300 cycles. These electrolyte properties enable the first demonstration of a 3.8 V all-solid-state battery In1.3Li0.3|Li2B12H12-Al2O3 (25 vol%)|LiNi0.8Co0.1Mn0.1O2 (NCM811) operating for 120 cycles with a rate of 0.2 C and at 30 °C, with a reversible specific capacity of 77.5 mAh g−1 and Coulombic efficiency of 99.8 %. The results demonstrate the potential of hydroborates as electrolyte for all-solid-state lithium batteries.

KW - All-solid-state battery

KW - Electrochemical stability

KW - Hydroborates

KW - Solid-state electrolyte

U2 - 10.1016/j.jallcom.2022.168689

DO - 10.1016/j.jallcom.2022.168689

M3 - Journal article

AN - SCOPUS:85145680248

SN - 0925-8388

VL - 938

JO - Journal of Alloys and Compounds

JF - Journal of Alloys and Compounds

M1 - 168689