| US 7,491,378 B2 | ||
| Electrode structure production process | ||
| Tomoya Yamamoto, Nara (Japan); Soichiro Kawakami, Nara (Japan); and Naoya Kobayashi, Nara (Japan) | ||
| Assigned to Canon Kabushiki Kaisha, Tokyo (Japan) | ||
| Filed on Apr. 08, 2004, as Appl. No. 10/820,029. | ||
| Application 10/820029 is a division of application No. 09/238551, filed on Jan. 28, 1999, granted, now 6,932,955. | ||
| Claims priority of application No. 10-018932 (JP), filed on Jan. 30, 1998. | ||
| Prior Publication US 2004/0195546 A1, Oct. 07, 2004 | ||
| Int. Cl. C01D 5/10 (2006.01) | ||
| U.S. Cl. 423—518 [429/231.2] | 21 Claims |
| 1. A process for preparing a powder material comprised mainly of a compound which electrochemically intercalates and deintercalates
a lithium ion and contains at least an oxygen element, a sulfur element and at least one transition metal element, the process
comprising at least one step selected from a group consisting of:
(I) a step of heating at least one compound (a) selected from a group consisting of carbonates, organic carboxylates, nitrates,
hydroxides and oxides of transition metals, and a sulfur compound (b) which forms hydrogen sulfide or sulfur, in a closed
vessel;
(II) a step of heating at least one compound (c) selected from a group consisting of sulfides, thiocarbonates, thiosulfates,
thiocyanates, thioglicolates and thiourea complexes of transition metals and at least one compound (d) selected from a group
consisting of carbonates, carbonic acid, organic carboxylates, organic carboxylic acids, nitrates, nitric acid, hydroxides
and oxides, which contains no transition metal element, in a closed vessel; and
(III) a step of heating at least one compound (a) selected from a group consisting of carbonates, organic carboxylates, nitrates,
hydroxides and oxides of transition metals and at least one compound (c) selected from a group consisting of sulfides, thiocarbonates,
thiosulfates, thiocyanates, thioglicolates and thiourea complexes of transition metals in a closed vessel.
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