Protective layer with oligo(ethylene glycol) borate anion receptor for lithium metal electrode stabilization

Nam Soon Choi; Yong Min Lee; Ki Yun Cho; Dong Hyun Ko; Jung Ki Park

doi:10.1016/j.elecom.2004.09.023

Protective layer with oligo(ethylene glycol) borate anion receptor for lithium metal electrode stabilization

Nam Soon Choi, Yong Min Lee, Ki Yun Cho, Dong Hyun Ko, Jung Ki Park

Department of Energy and Science and Engineering

Korea Advanced Institute of Science and Technology

Research output: Contribution to journal › Article › peer-review

37 Scopus citations

Abstract

The gel polymer electrolyte based on semi-IPN (interpenetrating polymer network) structure for the protection of lithium metal electrode was successfully developed by ultraviolet (UV) radiation-curing method. A curable mixed solution consists of linear polymer (Kynar 2801), crosslinking agent (1,6-hexanediol diacrylate), liquid electrolyte (ethylene carbonate (EC)/propylene carbonate (PC)/1 M LiClO ₄), oligo(ethylene glycol) borate (OEGB) anion receptor, and photoinitiator (methyl benzoylformate). The OEGB was synthesized by the dehydrocoupling reaction of hydroxyl group in di(ethylene glycol) methyl ether with hydrogen in BH ₃ and characterized by ¹H NMR. The presence of OEGB anion receptor in the protection layer could lead to an enhancement in the ionic conductivity, electrochemical stability, and the interfacial properties. The deposited lithium exhibited particle-like shape resulting from the introduction of the protection layer onto the lithium electrode surface. The unit cell based on the lithium anode protected with gel polymer electrolyte containing OEGB showed higher discharge capacity than that of the unit cell without OEGB after 100 cycles at C/2 rate (1.25 mA cm ^-2).

Original language	English
Pages (from-to)	1238-1242
Number of pages	5
Journal	Electrochemistry Communications
Volume	6
Issue number	12
DOIs	https://doi.org/10.1016/j.elecom.2004.09.023
State	Published - Dec 2004

Bibliographical note

Funding Information:
This research was supported by the program for the Training of Graduate Students in Regional Innovation which was conducted by the Ministry of Commerce, Industry and Energy of the Korean Government.

Keywords

Anion receptor
Deposition morphology
Gel polymer electrolyte
Protection layer
SEI layer

Access to Document

10.1016/j.elecom.2004.09.023

Cite this

@article{bded5564de8d4a60b6c2530cbab33ec7,

title = "Protective layer with oligo(ethylene glycol) borate anion receptor for lithium metal electrode stabilization",

abstract = "The gel polymer electrolyte based on semi-IPN (interpenetrating polymer network) structure for the protection of lithium metal electrode was successfully developed by ultraviolet (UV) radiation-curing method. A curable mixed solution consists of linear polymer (Kynar 2801), crosslinking agent (1,6-hexanediol diacrylate), liquid electrolyte (ethylene carbonate (EC)/propylene carbonate (PC)/1 M LiClO 4), oligo(ethylene glycol) borate (OEGB) anion receptor, and photoinitiator (methyl benzoylformate). The OEGB was synthesized by the dehydrocoupling reaction of hydroxyl group in di(ethylene glycol) methyl ether with hydrogen in BH 3 and characterized by 1H NMR. The presence of OEGB anion receptor in the protection layer could lead to an enhancement in the ionic conductivity, electrochemical stability, and the interfacial properties. The deposited lithium exhibited particle-like shape resulting from the introduction of the protection layer onto the lithium electrode surface. The unit cell based on the lithium anode protected with gel polymer electrolyte containing OEGB showed higher discharge capacity than that of the unit cell without OEGB after 100 cycles at C/2 rate (1.25 mA cm -2).",

keywords = "Anion receptor, Deposition morphology, Gel polymer electrolyte, Protection layer, SEI layer",

author = "Choi, {Nam Soon} and Lee, {Yong Min} and Cho, {Ki Yun} and Ko, {Dong Hyun} and Park, {Jung Ki}",

note = "Funding Information: This research was supported by the program for the Training of Graduate Students in Regional Innovation which was conducted by the Ministry of Commerce, Industry and Energy of the Korean Government.",

year = "2004",

month = dec,

doi = "10.1016/j.elecom.2004.09.023",

language = "English",

volume = "6",

pages = "1238--1242",

journal = "Electrochemistry Communications",

issn = "1388-2481",

publisher = "Elsevier Inc.",

number = "12",

}

TY - JOUR

T1 - Protective layer with oligo(ethylene glycol) borate anion receptor for lithium metal electrode stabilization

AU - Choi, Nam Soon

AU - Lee, Yong Min

AU - Cho, Ki Yun

AU - Ko, Dong Hyun

AU - Park, Jung Ki

N1 - Funding Information: This research was supported by the program for the Training of Graduate Students in Regional Innovation which was conducted by the Ministry of Commerce, Industry and Energy of the Korean Government.

PY - 2004/12

Y1 - 2004/12

N2 - The gel polymer electrolyte based on semi-IPN (interpenetrating polymer network) structure for the protection of lithium metal electrode was successfully developed by ultraviolet (UV) radiation-curing method. A curable mixed solution consists of linear polymer (Kynar 2801), crosslinking agent (1,6-hexanediol diacrylate), liquid electrolyte (ethylene carbonate (EC)/propylene carbonate (PC)/1 M LiClO 4), oligo(ethylene glycol) borate (OEGB) anion receptor, and photoinitiator (methyl benzoylformate). The OEGB was synthesized by the dehydrocoupling reaction of hydroxyl group in di(ethylene glycol) methyl ether with hydrogen in BH 3 and characterized by 1H NMR. The presence of OEGB anion receptor in the protection layer could lead to an enhancement in the ionic conductivity, electrochemical stability, and the interfacial properties. The deposited lithium exhibited particle-like shape resulting from the introduction of the protection layer onto the lithium electrode surface. The unit cell based on the lithium anode protected with gel polymer electrolyte containing OEGB showed higher discharge capacity than that of the unit cell without OEGB after 100 cycles at C/2 rate (1.25 mA cm -2).

AB - The gel polymer electrolyte based on semi-IPN (interpenetrating polymer network) structure for the protection of lithium metal electrode was successfully developed by ultraviolet (UV) radiation-curing method. A curable mixed solution consists of linear polymer (Kynar 2801), crosslinking agent (1,6-hexanediol diacrylate), liquid electrolyte (ethylene carbonate (EC)/propylene carbonate (PC)/1 M LiClO 4), oligo(ethylene glycol) borate (OEGB) anion receptor, and photoinitiator (methyl benzoylformate). The OEGB was synthesized by the dehydrocoupling reaction of hydroxyl group in di(ethylene glycol) methyl ether with hydrogen in BH 3 and characterized by 1H NMR. The presence of OEGB anion receptor in the protection layer could lead to an enhancement in the ionic conductivity, electrochemical stability, and the interfacial properties. The deposited lithium exhibited particle-like shape resulting from the introduction of the protection layer onto the lithium electrode surface. The unit cell based on the lithium anode protected with gel polymer electrolyte containing OEGB showed higher discharge capacity than that of the unit cell without OEGB after 100 cycles at C/2 rate (1.25 mA cm -2).

KW - Anion receptor

KW - Deposition morphology

KW - Gel polymer electrolyte

KW - Protection layer

KW - SEI layer

UR - http://www.scopus.com/inward/record.url?scp=7444229782&partnerID=8YFLogxK

U2 - 10.1016/j.elecom.2004.09.023

DO - 10.1016/j.elecom.2004.09.023

M3 - Article

AN - SCOPUS:7444229782

SN - 1388-2481

VL - 6

SP - 1238

EP - 1242

JO - Electrochemistry Communications

JF - Electrochemistry Communications

IS - 12

ER -

Protective layer with oligo(ethylene glycol) borate anion receptor for lithium metal electrode stabilization

Abstract

Bibliographical note

Keywords

Access to Document

Other files and links

Fingerprint

Cite this