LITHIUM-IRON-PHOSPHORUS-SULFUR-CARBON COMPOSITE BODY AND METHOD FOR PRODUCING SAME

WIPO Patent Application WO/2016/080443

A1

A composite body which contains, as constituent elements, phosphorus, lithium, iron, sulfur and carbon, while containing 90% by mole or more of lithium sulfide (Li2S) and having a crystallite size of 80 nm or less as calculated from the half width of a diffraction peak assigned to the (111) plane of Li2S as obtained by powder X-ray diffraction measurement. This composite body has high capacity (especially, high discharge capacity) that is useful for an electrode active material for lithium ion secondary batteries (especially, for a positive electrode active material for lithium ion secondary batteries) without being subjected to a staged preliminary charging/discharging.

TAKEUCHI TOMONARI (JP)
KAGEYAMA HIROYUKI (JP)
SAKUDA ATSUSHI (JP)
SAKAEBE HIKARI (JP)

PCT/JP2015/082416

May 26, 2016

November 18, 2015

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NAT INST OF ADVANCED IND SCIEN (JP)

C01G49/00; C01B17/22; H01M4/36; H01M4/58; H01M10/052; H01M10/0562; H01M10/0565

WO2010084808A1

2010-07-29

JP2002284530A	2002-10-03
JP2002110163A	2002-04-12
JP2005259629A	2005-09-22
JP2003502265A	2003-01-21

TOMONARI TAKEUCHI ET AL.: "Li2S-FeSx-C Fukugotai no Sakusei to sono Juhoden Tokusei", DAI 54 KAI ABSTRACTS, BATTERY SYMPOSIUM IN JAPAN, vol. 3E09, 6 October 2013 (2013-10-06), pages 345, XP009502941
See also references of EP 3222585A4

SAEGUSA & PARTNERS (JP)
Patent business corporation 3 Edakuni [Hajime] patent firm (JP)

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