1. A document management device, comprising:
a memory section for storing a document which has an identification number;
an input section for receiving an image including the identification number and summary information of the document which has the identification number;
a control section comprising an extracting section for extracting the identification number and the summary information from the image received by the input section, a document obtaining section which uses the extracted identification number to search for and obtain from among documents in the memory section the document which has the identification number, and a judging section for judging whether the extracted summary information is correct with respect to the document obtained by the document obtaining section; and
an output section for outputting the document obtained by the document obtaining section when the judging section judges the extracted summary information to be correct.
2. The document management device as set forth in claim 1, wherein:
the image received by the input section is transmitted from an external device via a communications network, and the output section transmits the output document to the external device.
3. The document management device as set forth in claim 1, wherein:
the summary information comprises at least a partial image, and when an image which coincides with the extracted summary information section exists in the document obtained by the document obtaining section, the judging section judges the extracted summary information to be correct.
4. The document management device as set forth in claim 1, wherein, when the document obtaining section fails to obtain the document which has the identification number, the output section provides an output indicative of the absence of the corresponding document in the memory section.
5. The document management device as set forth in claim 1, wherein the image received by the input section includes information indicative of a version of the document which has the identification number.
6. The document management device as set forth in claim 1, wherein the memory section stores one or more additional documents each of which has the identification number and a different version.
7. The document management device as set forth in claim 6, wherein:
the control section judges a presence or absence of a predetermined mark in the image received by the input section, and when the control section judges the presence of the predetermined mark in the image received by the input section, the output section outputs the document having a latest version out of the documents obtained by the document obtaining section which have the identification number.
8. The document management device as set forth in claim 6, wherein:
the control section judges a presence or absence of version information in the image received by the input section, and when the control section judges the presence of the version information in the image received by the input section, the output section outputs the document having a version designated by the version information out of the documents obtained by the document obtaining section which have the identification number.
9. The document management device as set forth in claim 1, wherein:
the control section further includes an approval section for judging a presence or absence of correct approval information in the image received by the input section, and when the approval section judges the absence of the correct approval information in the image received by the input section, output from the output section is prohibited.
10. The document management device as set forth in claim 9, wherein each document which is stored in the memory section includes the approval information.
11. The document management device as set forth in claim 9, wherein, when the image received by the input section includes predetermined information together with the approval information, output from the output section is prohibited.
12. The document management device as set forth in claim 9, wherein, when the approval section judges the absence of the correct approval information in the image received by the input section, the output section provides an output indicative of the absence of the correct approval information.
13. A computer-readable recording medium which stores a document management program which is used in a computer system including a memory section for storing a document which has an identification number, an input section for receiving an image including the identification number and summary information of the document which has the identification number, and an output section, the document management program for instructing the computer system to execute the processes of:
(i) extracting the identification number and the summary information from the image received by the input section;
(ii) using the extracted identification number, searching for and obtaining from among documents in the memory section the document which has the identification number; and
(iii) judging whether the extracted summary information is correct with respect to the obtained document to determine whether to output the obtained document via the output section.
14. A document management system, comprising at least one document management device, and at least one communications terminal device which is connected to the document management device via a communications network,
wherein:
the document management device includes: a memory section for storing a document which has an identification number; an input section for receiving from the communications terminal device an image including the identification number and summary information of the document which has the identification number; a control section comprising an extracting section for extracting the identification number and the summary information from the image received by the input section, a document obtaining section which uses the extracted identification number to search for and obtain from among documents in the memory section the document which has the identification number, and a judging section for judging whether the extracted summary information is correct with respect to the document obtained by the document obtaining section; and an output section for outputting the document obtained by the document obtaining section to the communications terminal device when the judging section judges the extracted summary information to be correct, and
the communications terminal device includes: an image reader section for reading a document image; a control section having a line number extractor section for extracting from the document image a plurality of line numbers of document management devices to which the communication terminal device is connectable, and a line number selector section for selecting one of the line numbers from the extracted plurality of line numbers; and an image transmitter section for transmitting the document image to the document management device corresponding to the selected line number, wherein the line number is selected by the line number selector section based on a comparison between the extracted plurality of line numbers and a line number of the communications terminal device.
15. A document management system, comprising at least one document management device, and at least one communications terminal device which is connected to the document management device via a communications network,
wherein:
the document management device includes: a memory section for storing a document which has an identification number; an input section for receiving from the communications terminal device an image including the identification number and summary information of the document which has the identification number; a control section comprising an extracting section for extracting the identification number and the summary information from the image received by the input section, a document obtaining section which uses the extracted identification number to search for and obtain from among documents in the memory section the document which has the identification number, and a judging section for judging whether the extracted summary information is correct with respect to the document obtained by the document obtaining section; and an output section for outputting the document obtained by the document obtaining section when the judging section judges the extracted summary information to be correct, and
the communications terminal device includes: an image reader section for reading a document image; a control section having a line number extractor section for extracting from the document image a plurality of line numbers of document management devices to which the communications terminal device is connectable, and a line number selector section for selecting one of the line numbers from the extracted plurality of line numbers; a memory section for storing a communications cost table for communications charges per unit time for the line numbers; and an image transmitter section for transmitting the document image to the document management device corresponding to the selected line number, wherein the line number is selected by the line number selector section based on communications costs determined using the communications cost table.
16. A document management device, comprising:
a memory section for storing documents each of which has an identification number;
an input section for receiving an image including an identification number identifying a requested document and summary information of the requested document;
an output section;
a control section comprising an extracting section for extracting the identification number and the summary information of the requested document from the image received by the input section, a document obtaining section which retrieves from the memory section a document whose identification number corresponds to the extracted identification number, and a judging section which uses the extracted summary information to determine whether to output the retrieved document via the output section.
17. The document management device as set forth in claim 16, wherein:
the summary information comprises an image.
18. The document management device as set forth in claim 17, wherein the image comprises a condensed image of at least part of the requested document.
19. The document management device as set forth in claim 16, wherein the documents stored in the memory section comprise different versions of one or more of the documents, the different versions having the same identification number, but different version information.
20. The document management device as set forth in claim 19, wherein:
the control section determines a presence or absence of a predetermined mark in the image received by the input section, and
the judging section uses the presence of the predetermined mark in the image received by the input section to determine to output the latest version of two or more documents retrieved from the memory section which have the extracted identification number.
21. The document management device as set forth in claim 19, wherein:
the extracting section extracts version information of the requested document from the image received by the input section, and
the judging section uses the version information to determine to output the corresponding version of two or more documents retrieved from the memory section which have the extracted identification number.
22. The document management device as set forth in claim 16, wherein:
the control section further includes an approval section for judging a presence or absence of correct approval information in the image received by the input section, and
when the approval section judges the absence of the correct approval information in the image received by the input section, output from the output section is prohibited.
23. The document management device as set forth in claim 16, wherein the image received by the input section comprises an image of a document request form on which the identification number and the summary information are printed.
The claims below are in addition to those above.
All refrences to claim(s) which appear below refer to the numbering after this setence.
1. A method for manufacturing a positive electrode for a lithium secondary battery, comprising the steps of:
forming a mixture including a lithium-containing composite oxide having an olivine structure and a graphene oxide, on a positive electrode current collector;
applying a pressure to the mixture vertically or substantially vertically to a surface of the positive electrode current collector; and
reducing the graphene oxide.
2. The method for manufacturing a positive electrode for a lithium secondary battery according to claim 1, wherein the lithium-containing composite oxide having the olivine structure is lithium iron phosphate.
3. The method for manufacturing a positive electrode for a lithium secondary battery according to claim 1, wherein the lithium-containing composite oxide having the olivine structure is a rectangular parallelepiped or substantially rectangular parallelepiped particle.
4. The method for manufacturing a positive electrode for a lithium secondary battery according to claim 1, wherein the lithium-containing composite oxide having the olivine structure is a rectangular parallelepiped or substantially rectangular parallelepiped single crystal particle.
5. The method for manufacturing a positive electrode for a lithium secondary battery according to claim 4, wherein a b-axis of the rectangular parallelepiped or substantially rectangular parallelepiped single crystal particle of the lithium-containing composite oxide having the olivine structure is oriented vertically to the surface of the positive electrode current collector.
6. The method for manufacturing a positive electrode for a lithium secondary battery according to claim 4, wherein a length in a b-axis direction of the rectangular parallelepiped or substantially rectangular parallelepiped single crystal particle of the lithium-containing composite oxide having the olivine structure is shorter than lengths in an a-axis direction and a c-axis direction of the rectangular parallelepiped or substantially rectangular parallelepiped single crystal particle of the lithium-containing composite oxide having the olivine structure.
7. The method for manufacturing a positive electrode for a lithium secondary battery according to claim 1, wherein the graphene oxide is multilayer graphene oxide including 2 to 100 graphene oxide sheets.
8. A positive electrode for a lithium secondary battery, comprising:
a positive electrode current collector; and
a positive electrode active material layer over the positive electrode current collector,
wherein the positive electrode active material layer includes:
a lithium-containing composite oxide having an olivine structure; and
a graphene oxide.
9. The positive electrode for a lithium secondary battery according to claim 8, wherein the lithium-containing composite oxide having the olivine structure is lithium iron phosphate.
10. The positive electrode for a lithium secondary battery according to claim 8, wherein the lithium-containing composite oxide having the olivine structure is a rectangular parallelepiped or substantially rectangular parallelepiped particle.
11. The positive electrode for a lithium secondary battery according to claim 8, wherein the lithium-containing composite oxide having the olivine structure is a rectangular parallelepiped or substantially rectangular parallelepiped single crystal particle.
12. The positive electrode for a lithium secondary battery according to claim 11, wherein a b-axis of the rectangular parallelepiped or substantially rectangular parallelepiped single crystal particle of the lithium-containing composite oxide having the olivine structure is oriented vertically to a surface of the positive electrode current collector.
13. The positive electrode for a lithium secondary battery according to claim 11, wherein a length in a b-axis direction of the rectangular parallelepiped or substantially rectangular parallelepiped single crystal particle of the lithium-containing composite oxide having the olivine structure is shorter than lengths in an a-axis direction and a c-axis direction of the rectangular parallelepiped or substantially rectangular parallelepiped single crystal particle of the lithium-containing composite oxide having the olivine structure.
14. The positive electrode for a lithium secondary battery according to claim 8, wherein the graphene oxide is multilayer graphene oxide including 2 to 100 graphene oxide sheets.
15. The positive electrode for a lithium secondary battery according to claim 8, wherein the graphene oxide is reduced.
16. The positive electrode for a lithium secondary battery according to claim 8, wherein a peak intensity ratio of a (020) diffraction to a (101) diffraction of the lithium-containing composite oxide having the olivine structure in a X-ray diffraction spectrum is greater than or equal to 4.5 and less than or equal to 5.5.
17. A lithium secondary battery, comprising:
a negative electrode;
an electrolyte solution; and
a positive electrode comprising:
a positive electrode current collector; and
a positive electrode active material layer over the positive electrode current collector,
wherein the positive electrode active material layer includes:
a lithium-containing composite oxide having an olivine structure; and
a graphene oxide.
18. The lithium secondary battery according to claim 17, wherein the lithium-containing composite oxide having the olivine structure is lithium iron phosphate.
19. The lithium secondary battery according to claim 17, wherein the lithium-containing composite oxide having the olivine structure is a rectangular parallelepiped or substantially rectangular parallelepiped particle.
20. The lithium secondary battery according to claim 17, wherein the lithium-containing composite oxide having the olivine structure is a rectangular parallelepiped or substantially rectangular parallelepiped single crystal particle.
21. The lithium secondary battery according to claim 20, wherein a b-axis of the rectangular parallelepiped or substantially rectangular parallelepiped single crystal particle of the lithium-containing composite oxide having the olivine structure is oriented vertically to a surface of the positive electrode current collector.
22. The lithium secondary battery according to claim 20, wherein a length in a b-axis direction of the rectangular parallelepiped or substantially rectangular parallelepiped single crystal particle of the lithium-containing composite oxide having the olivine structure is shorter than lengths in an a-axis direction and a c-axis direction of the rectangular parallelepiped or substantially rectangular parallelepiped single crystal particle of the lithium-containing composite oxide having the olivine structure.
23. The lithium secondary battery according to claim 17, wherein the graphene oxide is multilayer graphene oxide including 2 to 100 graphene oxide sheets.
24. The lithium secondary battery according to claim 17, wherein the graphene oxide is reduced.
25. The lithium secondary battery according to claim 17, wherein a peak intensity ratio of a (020) diffraction to a (101) diffraction of the lithium-containing composite oxide having the olivine structure in a X-ray diffraction spectrum is greater than or equal to 4.5 and less than or equal to 5.5.