Processing

Please wait...

Settings

Settings

Goto Application

1. WO2018140367 - SUPERCAPACITORS CONTAINING CARBON BLACK PARTICLES CLEANED WITH AN ACID


Disclaimer The image version (PDF) available on PATENTSCOPE is the official version. This online html version is provided to assist users. Despite the great care taken in its compilation to ensure a precise and accurate representation of the data appearing on the printed document/images, errors and/or omissions cannot be excluded due to the data transmittal, conversion and inherent limitations of the (optional) machine translation processes used. Hyperlinks followed by this symbol , are to external resources that are not controlled by WIPO. WIPO disclaims all liability regarding the above points.

INTERNATIONAL SEARCH REPORT (ISR)
Part 1:  1  2  3  4  5  6          Part 2:  A  B  C  D  E 
International application No. Applicant's or agent's file reference
PCT/US2018/014759 2017601PCT
International filing date (day/month/year) (Earliest) Priority Date (day/month/year)
23 January 2018 27 January 2017
Applicant
CABOT CORPORATION
FOR FURTHER ACTION: See Form PCT/ISA/220 as well as, where applicable, item 5 below.
This international search report has been prepared by this International Searching Authority and is transmitted to the applicant according to Article 18. A copy is being transmitted to the International Bureau.
It is also accompanied by a copy of each prior art document cited in this report.
1. Basis of the report
a. With regard to the language, the international search was carried out on the basis of:
the international application in the language in which it was filed.
a translation of the international application into                                          which is the language of a translation furnished for the purposes of international search (Rules 12.3(a) and 23.1(b)).
b.
This international search report has been established taking into account the rectification of an obvious mistake authorized by or notified to this Authority under Rule 91 (Rule 43.6bis(a)).
c.
With regard to any nucleotide and/or amino acid sequence disclosed in the international application, the international search was carried out on the basis of a sequence listing:
2. Certain claims were found unsearchable
3. Unity of invention is lacking
This International Searching Authority found multiple inventions in this international application, as follows:
1. claims: 1-31
A super capacitor comprising activated carbon and carbon black particles comprising less than or equal to about 100 ppm of calcium. A method of treating carbon black for an electrode of the supercapacitor.
2. claims: 32-39
Carbon black particles having a Brunauer Emmett and Teller (BET) surface area from about 600 m2/g to about 2100 m2/g and comprising less than or equal to about 100 ppm of calcium
1.
As all required additional search fees were timely paid by the applicant, this international search report covers all searchable claims.
2.
As all searchable claims could be searched without effort justifying additional fees, this Authority did not invite payment of additional fees.
3.
As only some of the required additional search fees were timely paid by the applicant, this international search report covers only those claims for which fees were paid, specifically claims Nos.:
4.
No required additional search fees were timely paid by the applicant. Consequently, this international search report is restricted to the invention first mentioned in the claims; it is covered by claims Nos.: 1-31
Remark on Protest
The additional search fees were accompanied by the applicant’s protest and, where applicable, the payment of a protest fee.
The additional search fees were accompanied by the applicant’s protest but the applicable protest fee was not paid within the time limit specified in the invitation.
No protest accompanied the payment of additional search fees.
4. Title of the invention
The text is approved as submitted by the applicant.
The text has been established by this Authority to read as follows:
SUPERCAPACITORS CONTAINING CARBON BLACK PARTICLES CLEANED WITH AN ACID

5. Abstract
The text is approved as submitted by the applicant.
The text has been established, according to Rule 38.2, by this Authority as it appears in Box No. IV. The applicant may, within one month from the date of mailing of this international search report, submit comments to this Authority.

A method for cleaning carbon black before using it as material for supercapacitor electrode. The method consisting on washing the carbon material with an acid choosen in the group consisting on hydrochloric acid, nitric acid, citric acid, formic acid, acetic acid and oxalic acid. A supercapacitor includes an electrode comprising activated carbon and carbon black particles containing less than or equal to about 100 ppm of calcium. A method includes treating base carbon black particles to form treated carbon black particles containing less than or equal to about 100 ppm of calcium; and using the treated carbon black particles to form an electrode of a supercapacitor. Carbon black particles having a Brunauer, Emmett and Teller (BET) surface area ranging from 650 m 2 /g to 2,050 m 2/g, and comprising less than or equal to about 100 ppm of calcium.


6. Drawings
a.
The figure of the drawings to be published with the abstract is Figure No.     1    
as suggested by the applicant.
as selected by this Authority, because the applicant failed to suggest a figure.
as selected by this Authority, because this figure better characterizes the invention.
b.
none of the figures is to be published with the abstract.

A. CLASSIFICATION OF SUBJECT MATTER

     H01G 11/24 (2013.01)i; H01M 2/00 (2006.01)i; C01B 25/00 (2006.01)i; H01G 11/38 (2013.01)i; H01M 4/133 (2010.01)i; C01B 32/05 (2017.01)i
According to International Patent Classification (IPC) or to both national classification and IPC

B. FIELDS SEARCHED

Minimum documentation searched (classification system followed by classification symbols):
     C01B; H01G; C09D
Documentation searched other than minimum documentation to the extent that such documents are included in the fields searched:
Electronic data base consulted during the international search (name of data base and, where practicable, search terms used):
EPO-Internal, WPI Data

C. DOCUMENTS CONSIDERED TO BE RELEVANT

Category* Citation of document, with indication, where appropriate, of the relevant passages Relevant to claim No.
(1)
X
EP 2760948 B1 (CORNING INC [US]) 24 June 2015 (2015-06-24)
1-31
paragraphs [0002], [0004], [0005], [0029], [0034] - paragraph [0035]
paragraphs [0038], [0040], [0042], [0052]; claims 1-4
the whole document
(2)
X
CN 101239718 A (KURARAY CHEMICAL KK [JP]) 13 August 2008 (2008-08-13)
1-31
paragraphs [0011], [0016] - paragraph [0017]
paragraphs [0020], [0025], [0026], [0028], [0032]
paragraphs [0035], [0038], [0040] - paragraph [0042]
paragraphs [0051], [0058], [0066], [0070], [0071], [0077], [0079], [0090]
paragraphs [0098], [0107], [0109] - paragraphs [0111], [0123], [0124]; claims 1,2
the whole document
(3)
X
JP 3038676 B2 (ASAHI GLASS CO LTD; ELNA CO LTD) 08 May 2000 (2000-05-08)
1-31
abstract; claim 1
the whole document
*
Special categories of cited documents:
"A"
document defining the general state of the art which is not considered to be of particular relevance
"D"
document cited by the applicant in the international application
"E"
earlier application or patent but published on or after the international filing date
"L"
document which may throw doubts on priority claim(s) or which is cited to establish the publication date of another citation or other special reason (as specified)
"O"
document referring to an oral disclosure, use, exhibition or other means
"P"
document published prior to the international filing date but later than the priority date claimed
"T"
later document published after the international filing date or priority date and not in conflict with the application but cited to understand the principle or theory underlying the invention
"X"
document of particular relevance; the claimed invention cannot be considered novel or cannot be considered to involve an inventive step when the document is taken alone
"Y"
document of particular relevance; the claimed invention cannot be considered to involve an inventive step when the document is combined with one or more other such documents, such combination being obvious to a person skilled in the art
"&"
document member of the same patent family

D. INFORMATION ON PATENT FAMILY MEMBERS

Patent document cited in search report Publication date
(day/month/year)
Patent family member(s) Publication date
(day/month/year)
EP 2760948 B1
24 June 2015
CN 103842451 A
EP 2760948 A1
JP 6080271 B2
JP 2014534285 A
KR 20140082995 A
US 2013082213 A1
WO 2013049428 A1
04 June 2014
06 August 2014
15 February 2017
18 December 2014
03 July 2014
04 April 2013
04 April 2013
CN 101239718 A
13 August 2008
CN 101239717 A
CN 101239718 A
CN 101244820 A
13 August 2008
13 August 2008
20 August 2008
JP 3038676 B2
08 May 2000
JP 3038676 B2
JP H01241811 A
08 May 2000
26 September 1989
Name and mailing address of the ISA/:
European Patent Office
P.B. 5818, Patentlaan 2, 2280 HV Rijswijk,
Netherlands
Telephone No. (+31-70)340-2040
Facsimile No. (+31-70)340-3016
Date of the actual completion of the international search:
11 May 2018
Date of mailing of the international search report:
10 July 2018
Authorized officer:
Dessaux, Christophe
Top    Part 1: 1 2 3 4 5 6         Part 2: A B C D E