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1. CN111082147 - Preparation method of lithium-sulfur battery based on large-area thick film controllable texture photonic crystal

Office
China
Application Number 201911250675.0
Application Date 09.12.2019
Publication Number 111082147
Publication Date 28.04.2020
Publication Kind A
IPC
H01M 10/058
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
10Secondary cells; Manufacture thereof
05Accumulators with non-aqueous electrolyte
058Construction or manufacture
H01M 10/052
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
10Secondary cells; Manufacture thereof
05Accumulators with non-aqueous electrolyte
052Li-accumulators
H01M 4/139
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
4Electrodes
02Electrodes composed of, or comprising, active material
13Electrodes for accumulators with non-aqueous electrolyte, e.g. for lithium-accumulators; Processes of manufacture thereof
139Processes of manufacture
C30B 29/18
CCHEMISTRY; METALLURGY
30CRYSTAL GROWTH
BSINGLE-CRYSTAL GROWTH; UNIDIRECTIONAL SOLIDIFICATION OF EUTECTIC MATERIAL OR UNIDIRECTIONAL DEMIXING OF EUTECTOID MATERIAL; REFINING BY ZONE-MELTING OF MATERIAL; PRODUCTION OF A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; SINGLE CRYSTALS OR HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; AFTER-TREATMENT OF SINGLE CRYSTALS OR A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; APPARATUS THEREFOR
29Single crystals or homogeneous polycrystalline material with defined structure characterised by the material or by their shape
10Inorganic compounds or compositions
16Oxides
18Quartz
C30B 29/02
CCHEMISTRY; METALLURGY
30CRYSTAL GROWTH
BSINGLE-CRYSTAL GROWTH; UNIDIRECTIONAL SOLIDIFICATION OF EUTECTIC MATERIAL OR UNIDIRECTIONAL DEMIXING OF EUTECTOID MATERIAL; REFINING BY ZONE-MELTING OF MATERIAL; PRODUCTION OF A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; SINGLE CRYSTALS OR HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; AFTER-TREATMENT OF SINGLE CRYSTALS OR A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; APPARATUS THEREFOR
29Single crystals or homogeneous polycrystalline material with defined structure characterised by the material or by their shape
02Elements
CPC
C30B 29/02
CCHEMISTRY; METALLURGY
30CRYSTAL GROWTH
BSINGLE-CRYSTAL-GROWTH
29Single crystals or homogeneous polycrystalline material with defined structure characterised by the material or by their shape
02Elements
C30B 29/18
CCHEMISTRY; METALLURGY
30CRYSTAL GROWTH
BSINGLE-CRYSTAL-GROWTH
29Single crystals or homogeneous polycrystalline material with defined structure characterised by the material or by their shape
10Inorganic compounds or compositions
16Oxides
18Quartz
H01M 4/139
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
4Electrodes
02Electrodes composed of or comprising active material
13Electrodes for accumulators with non-aqueous electrolyte, e.g. for lithium-accumulators; Processes of manufacture thereof
139Processes of manufacture
H01M 10/052
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
10Secondary cells; Manufacture thereof
05Accumulators with non-aqueous electrolyte
052Li-accumulators
H01M 10/058
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
10Secondary cells; Manufacture thereof
05Accumulators with non-aqueous electrolyte
058Construction or manufacture
Y02E 60/10
YSECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
60Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
10Energy storage using batteries
Applicants SHANGHAI JIAO TONG UNIVERSITY
上海交通大学
Inventors HU XIAOBIN
胡晓斌
LIN SHENGXUAN
林升炫
CAI ZIHE
蔡子贺
XIAO JIAJIA
肖佳佳
Agents 上海科盛知识产权代理有限公司 31225
Title
(EN) Preparation method of lithium-sulfur battery based on large-area thick film controllable texture photonic crystal
(ZH) 基于大面积厚膜可控织构光子晶体锂硫电池的制备方法
Abstract
(EN) The invention relates to a preparation method of a lithium-sulfur battery based on a large-area thick film controllable texture photonic crystal, which is characterized in that a vertical sedimentation self-assembly method is used; along with the volatilization of a solvent, monodisperse microspheres are arranged in macropores of a base material to form a photonic crystal structure, the photonic crystal is used as a template, ordered microporous carbon is synthesized in gaps of the template, and the photonic crystal template is removed to obtain a carbon photonic crystal with a three-dimensional ordered hierarchical porous structure, so that the large-area thick film controllable texture photonic crystal is formed. The texture photonic crystal is compounded with elemental sulfur to obtaina sulfur positive electrode, and lithium metal is taken as a counter electrode so as to assemble the lithium-sulfur battery. By changing the thickness of the base material and the concentration of a turbid liquid, the thick film controllability of the electrode thickness ranging from 10 micrometers to 650 micrometers is achieved, and meanwhile, large-area preparation with the electrode area ranging from 0.1cm<2> to 400cm <2> is achieved by changing the area of the base material. In addition, high load of sulfur from 1-15mg.cm<-2> is achieved by adjusting the concentration of an organic solution of sulfur, so that high surface capacity density and surface energy density of the lithium-sulfur battery are realized.
(ZH) 本发明涉及基于大面积厚膜可控织构光子晶体锂硫电池的制备方法,利用垂直沉降自组装的方法,随着溶剂挥发,使单分散微球在基材的大孔中排列成光子晶体结构,以光子晶体为模板,在模板间隙中合成有序微孔碳,去除光子晶体模板获得三维有序分级多孔结构的碳光子晶体,从而形成大面积厚膜可控的织构光子晶体。将其与单质硫复合得到硫正极,锂金属作为对电极,从而组装成锂硫电池。本发明通过改变基材的厚度和悬浊液的浓度,实现了电极厚度从10‑650um的厚膜可控,同时通过改变基材的面积,实现了电极面积从0.1‑400cm2的大面积制备。此外通过调节硫的有机溶液的浓度,实现了从1‑15mg·cm‑2的硫高负载,从而实现了锂硫电池的高面容量密度和面能量密度。
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