Merck
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213241

Sigma-Aldrich

硫化锂

99.98% trace metals basis

Synonym(s):
硫化锂
Empirical Formula (Hill Notation):
Li2S
CAS Number:
Molecular Weight:
45.95
EC 号:
MDL编号:
PubChem化学物质编号:
NACRES:
NA.23

等级

battery grade

质量水平

300

测定

99.98% trace metals basis

形式

powder

组成

Li2S

reaction suitability

reagent type: catalyst
core: lithium

密度

1.66 g/mL at 25 °C (lit.)

application(s)

battery manufacturing
battery manufacturing

储存温度

2-8°C

SMILES string

[Li]S[Li]

InChI

1S/2Li.S

InChI key

ZWDBUTFCWLVLCQ-UHFFFAOYSA-N

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一般描述

硫化锂是一种抗萤石半导体(带隙 3.865eV)。它存在于正交和立方结构中。正交和立方结构的密度分别为 1.75g/cm3 和 1.63g/cm3

应用

已经研究了硫化锂作为 MgB2-类超导体。它还用作可充电锂硫电池中的阴极材料。
Lithium sulfide can be widely used as acathode material in Li-S batteries. For example, it can be used as an activematerial to prepare LiS2-C electrode with high reversibility andcycling efficiency and preparation of lithium/polymer electrolyte/LiS2 compositecathode.

Itcan also be used to prepare solid electrolyte interphase (SEI) on Li metalanode. This SEI layer can suppress Li dendrite growth and minimize sidereactions.

包装

5, 10, 50 g in glass bottle

特点和优势

  • Owing to its high melting point, LiS2 provides a wide operational temperature range to synthesize composite cathode.
  • Low density and high specific capacity of LiS2 help to avoid volume expansion during cycling.
  • LiS2 has excellent chemical stability against Li and high ionic conductivity (≈10−5 S cm−1).

象形图

CorrosionSkull and crossbones

警示用语:

Danger

危险声明

危险分类

Acute Tox. 3 Oral - Eye Dam. 1 - Skin Corr. 1B

补充剂危害

储存分类代码

6.1B - Non-combustible, acute toxic Cat. 1 and 2 / very toxic hazardous materials

WGK

WGK 2

闪点(F)

Not applicable

闪点(C)

Not applicable

个人防护装备

Eyeshields, Faceshields, Gloves, type P3 (EN 143) respirator cartridges

Certificate of Analysis

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Certificate of Origin

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More Documents

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