LiNO3-free electrolyte for Li-S battery: A solvent of choice with low K-sp of polysulfide and low dendrite of lithium

	LiNO3-free electrolyte for Li-S battery: A solvent of choice with low K-sp of polysulfide and low dendrite of lithium
	Qu, Chao 2; Chen, Yuqing 2,3; Yang, Xiaofei 2,3; Zhang, Hongzhang 1,2; Li, Xianfeng 1,2; Zhang, Huamin 1,2
刊名	NANO ENERGY
	2017-09-01
卷号	39 页码:262-272
关键词	K-sp of polysulfide Shuttle effect inhibition Lithium dendrite inhibition Lithium sulfur battery Practical soft package battery Unmanned solar energy aircraft
英文摘要	Although LiNO3 could effectively solve the polysulfide (PS) shuttle problem in Li-S battery, however, it causes explosive hazards with the cathode composition like gun powder (KNO3, Sulfur, and Carbon). Herein, a LiNO3-free electrolyte was designed to simultaneously inhibit the PS shuttle and lithium dendrite problem, with pure 1,3-dioxolane (DOL) as the solvent, due to the low K-sp of polysulfide as well as the stable SEI on lithium. As a synergistic effect, it enabled the Li-S batteries to achieve 95% coulombic efficiency, 3 times longer cycle life, and a slower self-discharging rate at 55 degrees C compared to the DOL/DME blend solvent. Four kinds of batteries, from coins to soft packages, were carried out to confirm the superiority of this electrolyte. Li-S soft package batteries with 4000 mAh capacity were assembled, achieving the specific energy of 350 Wh kg(-1) and specific power of 60 W kg(-1), which could cycle over 30 times at 0.2 C with high capacity retention of 80%. It is among the best comprehensive Li-S batteries performance reported using LiNO3-free electrolyte.
WOS标题词	Science & Technology ; Physical Sciences ; Technology
类目[WOS]	Chemistry, Physical ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Physics, Applied
研究领域[WOS]	Chemistry ; Science & Technology - Other Topics ; Materials Science ; Physics
关键词[WOS]	HIGH-ENERGY-DENSITY ; LONG CYCLE LIFE ; SULFUR BATTERIES ; C/S CATHODE ; PERFORMANCE ; CARBON ; BINDER ; 1,3-DIOXOLANE ; INTERPHASE ; COMPOSITE
收录类别	SCI
语种	英语
WOS记录号	WOS:000408878200027
内容类型	期刊论文
源URL	[http://cas-ir.dicp.ac.cn/handle/321008/150010]
专题	大连化学物理研究所_中国科学院大连化学物理研究所
作者单位	1.Collaborat Innovat Ctr Chem Energy Mat iChEM, Dalian 116023, Peoples R China 2.Chinese Acad Sci, Dalian Inst Chem Phys, Div Energy Storage, Zhongshan Rd 457, Dalian 116023, Peoples R China 3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Qu, Chao,Chen, Yuqing,Yang, Xiaofei,et al. LiNO3-free electrolyte for Li-S battery: A solvent of choice with low K-sp of polysulfide and low dendrite of lithium[J]. NANO ENERGY,2017,39:262-272.
APA	Qu, Chao,Chen, Yuqing,Yang, Xiaofei,Zhang, Hongzhang,Li, Xianfeng,&Zhang, Huamin.(2017).LiNO3-free electrolyte for Li-S battery: A solvent of choice with low K-sp of polysulfide and low dendrite of lithium.NANO ENERGY,39,262-272.
MLA	Qu, Chao,et al."LiNO3-free electrolyte for Li-S battery: A solvent of choice with low K-sp of polysulfide and low dendrite of lithium".NANO ENERGY 39(2017):262-272.