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Extract from the Register of European Patents

EP About this file: EP3496189

EP3496189 - COMPOUND, PREPARATION METHOD THEREFORE, AND USE IN LITHIUM ION SECONDARY BATTERY [Right-click to bookmark this link]
StatusNo opposition filed within time limit
Status updated on  06.02.2026
Database last updated on 28.03.2026
FormerThe patent has been granted
Status updated on  28.02.2025
FormerGrant of patent is intended
Status updated on  07.10.2024
FormerExamination is in progress
Status updated on  04.12.2020
FormerRequest for examination was made
Status updated on  10.05.2019
FormerThe international publication has been made
Status updated on  17.09.2018
Most recent event   Tooltip06.02.2026No opposition filed within time limitpublished on 11.03.2026  [2026/11]
Applicant(s)For all designated states
BTR NEW MATERIAL GROUP CO., LTD.
Building 1, 2, 3, 4, 5, 6, 7A, 7B and 8
High-tech Industrial Park
Xitian Community
Gongming Office, Guangming New District
Shenzhen, Guangdong 518106 / CN
[2025/14]
Former [2020/21]For all designated states
BTR NEW MATERIAL GROUP CO., LTD.
Building 1, 2, 3, 4, 5, 6, 7A, 7B and 8
High-tech Industrial Park
Xitian Community
Gongming Office, Guangming New District
Shenzhen, Guangdong 518106 / CN
Former [2020/08]For all designated states
BTR NEW MATERIAL GROUP CO., LTD.
No. 8 Building
High Tech Industrial Park
Xitian Community
Gongming Office, Guangming New District
Shenzhen, Guangdong 518106 / CN
Former [2019/24]For all designated states
Shenzhen Btr New Energy Materials Inc.
No. 8 Building
High Tech Industrial Park
Xitian Community
Gongming Office, Guangming New District
Shenzhen, Guangdong 518106 / CN
Inventor(s)01 / PANG, Chunlei
No 8 Building
High Tech Industrial Park
XitianCommunity
Gongming Office, Guangming New District
Shenzhen Guangdong 518106 / CN
02 / QU, Lijuan
No 8 Building
High Tech Industrial Park
Xitian Community
Gongming Office, Guangming New District
Shenzhen Guangdong 518106 / CN
03 / REN, Jianguo
No 8 Building
High Tech Industrial Park
Xitian Community
Gongming Office, Guangming New District
Shenzhen Guangdong 518106 / CN
04 / YUE, Min
No 8 Building
High Tech Industrial Park
Xitian Community
Gongming Office, Guangming New District
Shenzhen Guangdong 518106 / CN
 [2019/24]
Representative(s)Novagraaf Group
Chemin de l'Echo 3
1213 Onex / Geneva / CH
[2025/14]
Former [2019/24]HGF Limited
1 City Walk
Leeds LS11 9DX / GB
Application number, filing date18764782.127.02.2018
[2019/24]
WO2018CN77445
Priority number, dateCN20171012728106.03.2017         Original published format: CN201710127281
[2019/24]
Filing languageZH
Procedural languageEN
PublicationType: A1 Application with search report
No.:WO2018161821
Date:13.09.2018
Language:ZH
[2018/37]
Type: A1 Application with search report 
No.:EP3496189
Date:12.06.2019
Language:EN
[2019/24]
Type: B1 Patent specification 
No.:EP3496189
Date:02.04.2025
Language:EN
[2025/14]
Search report(s)International search report - published on:CN13.09.2018
(Supplementary) European search report - dispatched on:EP14.02.2020
ClassificationIPC:H01M4/36, H01M4/134, H01M4/139, H01M4/1395, H01M10/0525, H01M4/04, H01M4/1391, H01M4/1397, H01M4/62, H01M4/38, H01M4/48, H01M4/58, H01M4/02
[2020/12]
CPC:
H01M4/0471 (EP); H01M4/366 (CN,KR,US); H01M4/131 (US);
B82Y30/00 (CN); C01B32/05 (KR); C01B32/158 (KR);
C01B32/182 (KR); C01B33/021 (KR); C01B33/025 (US);
C01B33/113 (KR); C01B33/12 (US); H01M10/052 (KR);
H01M10/0525 (EP,CN,US); H01M4/1391 (EP); H01M4/1397 (EP);
H01M4/364 (EP,KR,US); H01M4/386 (EP,CN,KR,US); H01M4/483 (EP,CN,KR,US);
H01M4/485 (US); H01M4/5825 (EP,CN); H01M4/587 (CN,KR,US);
H01M4/62 (KR); H01M4/625 (EP,KR); B82Y40/00 (KR);
C01P2004/03 (US); C01P2004/80 (KR,US); C01P2006/12 (US);
C01P2006/40 (KR,US); H01M2004/027 (EP,US); Y02E60/10 (EP) (-)
Former IPC [2019/24]H01M4/36, H01M4/134, H01M4/139, H01M4/1395, H01M10/0525
Designated contracting statesAL,   AT,   BE,   BG,   CH,   CY,   CZ,   DE,   DK,   EE,   ES,   FI,   FR,   GB,   GR,   HR,   HU,   IE,   IS,   IT,   LI,   LT,   LU,   LV,   MC,   MK,   MT,   NL,   NO,   PL,   PT,   RO,   RS,   SE,   SI,   SK,   SM,   TR [2019/24]
Extension statesBANot yet paid
MENot yet paid
Validation statesMANot yet paid
MDNot yet paid
TNNot yet paid
TitleGerman:VERBINDUNG, HERSTELLUNGSVERFAHREN DAFÜR UND VERWENDUNG IN EINER LITHIUM-IONEN-SEKUNDÄRBATTERIE[2019/24]
English:COMPOUND, PREPARATION METHOD THEREFORE, AND USE IN LITHIUM ION SECONDARY BATTERY[2019/24]
French:COMPOSÉ ET SON PROCÉDÉ DE PRÉPARATION, ET UTILISATION DANS UNE BATTERIE RECHARGEABLE LITHIUM-ION[2019/24]
Entry into regional phase06.03.2019Translation filed 
06.03.2019National basic fee paid 
06.03.2019Search fee paid 
06.03.2019Designation fee(s) paid 
06.03.2019Examination fee paid 
Examination procedure06.03.2019Examination requested  [2019/24]
03.09.2020Amendment by applicant (claims and/or description)
03.12.2020Despatch of a communication from the examining division (Time limit: M04)
08.04.2021Reply to a communication from the examining division
11.08.2022Despatch of a communication from the examining division (Time limit: M04)
01.12.2022Reply to a communication from the examining division
08.10.2024Communication of intention to grant the patent
24.12.2024Fee for grant paid
24.12.2024Fee for publishing/printing paid
24.12.2024Receipt of the translation of the claim(s)
Opposition(s)05.01.2026No opposition filed within time limit [2026/11]
Fees paidRenewal fee
27.08.2020Renewal fee patent year 03
19.12.2020Renewal fee patent year 04
11.01.2022Renewal fee patent year 05
09.12.2022Renewal fee patent year 06
07.12.2023Renewal fee patent year 07
21.02.2025Renewal fee patent year 08
Penalty fee
Additional fee for renewal fee
29.02.202003   M06   Fee paid on   27.08.2020
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Responsibility for the accuracy, completeness or quality of the data displayed under the link provided lies entirely with the Unified Patent Court.
Lapses during opposition  TooltipAT02.04.2025
BG02.04.2025
CZ02.04.2025
DK02.04.2025
EE02.04.2025
ES02.04.2025
FI02.04.2025
HR02.04.2025
IT02.04.2025
LV02.04.2025
NL02.04.2025
PL02.04.2025
RO02.04.2025
SK02.04.2025
SM02.04.2025
NO02.07.2025
RS02.07.2025
GR03.07.2025
IS02.08.2025
PT04.08.2025
[2026/10]
Former [2026/09]AT02.04.2025
BG02.04.2025
CZ02.04.2025
DK02.04.2025
ES02.04.2025
FI02.04.2025
HR02.04.2025
LV02.04.2025
NL02.04.2025
PL02.04.2025
SM02.04.2025
NO02.07.2025
RS02.07.2025
GR03.07.2025
IS02.08.2025
PT04.08.2025
Former [2026/08]AT02.04.2025
BG02.04.2025
DK02.04.2025
ES02.04.2025
FI02.04.2025
HR02.04.2025
LV02.04.2025
NL02.04.2025
PL02.04.2025
SM02.04.2025
NO02.07.2025
RS02.07.2025
GR03.07.2025
IS02.08.2025
PT04.08.2025
Former [2025/49]AT02.04.2025
BG02.04.2025
ES02.04.2025
FI02.04.2025
HR02.04.2025
LV02.04.2025
NL02.04.2025
PL02.04.2025
NO02.07.2025
RS02.07.2025
GR03.07.2025
IS02.08.2025
PT04.08.2025
Former [2025/48]AT02.04.2025
BG02.04.2025
ES02.04.2025
FI02.04.2025
HR02.04.2025
NL02.04.2025
PL02.04.2025
NO02.07.2025
RS02.07.2025
GR03.07.2025
PT04.08.2025
Former [2025/47]BG02.04.2025
ES02.04.2025
FI02.04.2025
NL02.04.2025
PL02.04.2025
NO02.07.2025
GR03.07.2025
PT04.08.2025
Former [2025/46]ES02.04.2025
FI02.04.2025
NL02.04.2025
PT04.08.2025
Former [2025/43]NL02.04.2025
Documents cited:Search[X] US2014030599  (LEE YONG JU et al.) [X] 1-8,10-13 * paragraphs [0024] , [0069]; example 1 *
 [X] US2015221950  (MINAMI HIROSHI et al.) [X] 1-13 * paragraphs [0014] , [0043] , [0070]; claim 1 *
 [X] EP2372817  (SHINETSU CHEMICAL CO et al.) [X] 1-8,10-13 * paragraphs [0033] , [0055] , [0057]; example 1 *
 [X] US2015280223  (CHANG DONG GYU et al.) [X] 1,4-7 * paragraph [0024]; figure 1 *
 [X] WO2016121324  (SANYO ELECTRIC CO et al.) [X] 1,2,4-7 * paragraphs [0022] , [0039] , [0040]; figure 1 *
 [X] JP2007059213  (TOSHIBA CORP et al.) [X] 1-7 * paragraphs [0027] , [0030]; example 1; claim 1 *
 [XY] JP2016192385  (SONY CORP et al.) [X] 1-7 * paragraphs [0032] - [0033] - [0144] , [0132] , [0192] *[Y] 9
 [XY] US2016260967  (MATUS YURIY et al.) [X] 1-7 * paragraphs [0057] , [0 63] - [0064] - [0068]; claim 1 *[Y] 9
 [A]   ZHANG YI ET AL: "Preparation of nanographite sheets supported Si nanoparticles byin situreduction of fumed SiO2with magnesium for lithium ion battery", JOURNAL OF POWER SOURCES, ELSEVIER SA, CH, vol. 281, 7 February 2015 (2015-02-07), pages 425 - 431, XP029142668, ISSN: 0378-7753, DOI: 10.1016/J.JPOWSOUR.2015.02.020 [A] 4 * the whole document *

DOI:   http://dx.doi.org/10.1016/j.jpowsour.2015.02.020
International search[XY] CN102214824  (SHINETSU CHEMICAL CO et al.) [X] 1-6, 8-10, 12, 13 * , description, paragraphs 0045-0050 and 0066-0119, and figures 1-3, description, paragraphs 0045-0050 and 0066-0119, and figures 1-3 *[Y] 7-13
 [Y] CN103474667  (SHENZHEN BTR NEW ENERGY MATERIALS CO LTD et al.) [Y] 7-13 * , claims 3-8, and description, paragraphs 0017-0020 and 0037 *
 [PX] CN106816594  (SHENZHEN BTR NEW ENERGY MAT CO LTD et al.) [PX] 1-13 * , claims 1-10, and description, paragraphs 0007-0075 *
 [A] CN103474631  (SHENZHEN BTR NEW ENERGY MATERIALS CO LTD et al.) [A] 1-13 * , entire document *
Examination  YANG J: "SiOx-based anodes for secondary lithium batteries", 1 December 2002 (2002-12-01), pages 125 - 129, XP055754529, Retrieved from the Internet [retrieved on 20201126], DOI: https://doi.org/10.1016/S0167-2738(02)00362-4

DOI:   http://dx.doi.org/https://doi.org/10.1016/S0167-2738(02)00362-4
The EPO accepts no responsibility for the accuracy of data originating from other authorities; in particular, it does not guarantee that it is complete, up to date or fit for specific purposes.