SYNTHESIS AND LITHIUM CONDUCTIVITIES OF LI2SIS3 AND LI4SIS4
SYNTHESIS AND LITHIUM CONDUCTIVITIES OF LI2SIS3 AND LI4SIS4
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DOI：
10.1016/0025-5408(89)90053-6
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发表时间：
1989-07-01
影响因子：
5.4
通讯作者：
HUGGINS, RA
中科院分区：
文献类型：
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作者：
AHN, BT;HUGGINS, RA
采用热解石墨涂层二氧化硅安瓿合成了LiSiS体系中的成分。鉴定了两种三元化合物Li 2 SiS 3 和Li 4 SiS 4 ，并首次报道了它们的粉末X射线衍射数据。 Li 2 SiS 3 具有a= 6.735 A ̊、b= 11.664 A ̊ 和c= 5.926 A ̊，具有空间群Cmc2 1，而Li 4 SiS 4 具有a= 13.735 A ̊、b= 7.769 A ̊ 和c= 6.147 A ̊，具有空间群PNMA。 Li 2 SiS 3 和Li 4 SiS 4 在室温下的锂电导率分别为2×10− 6 和5× 10− 8 (Ω.cm)− 1。根据此处推导的晶体结构讨论了它们的离子传导行为。
The compositions in the Li Si S system were synthesized by using pyrolitic graphite-coated silica ampoules. Two ternary compounds, Li 2 SiS 3 and Li 4 SiS 4, were identified and their powder x-ray diffraction data were reported for the first time. Li 2 SiS 3 had a= 6.735 A ̊, b= 11.664 A ̊, and c= 5.926 A ̊, with a space group Cmc2 1, while Li 4 SiS 4 had a= 13.735 A ̊, b= 7.769 A ̊, and c= 6.147 A ̊, with a space group Pnma. The lithium conductivities of Li 2 SiS 3 and Li 4 SiS 4 at room temperature were 2× 10− 6 and 5× 10− 8 (Ω. cm)− 1, respectively. Their ionic conduction behaviors were discussed based on their crystal structures deduced here.