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A Separator For Electrochemical Device And A Method Of Coating The Same
Abstract: The present invention relates to a modified cellulose separator (270) for electrochemical devices comprising a bare cellulose substrate/membrane layer (210) coated with a plurality of coating layers applied on each side of said cellulose substrate layer using rollers (230). A first coating layer (220) is applied on both sides of the cellulose substrate and a second coating layer (260) is applied on the first coating layer (220) on both sides of the cellulose substrate using rollers (230). The first and second coating layers (220, 260) create a moisture barrier on the surface of the separator. The first coating layer (220) may comprise composite layer of Polyvinylidene fluoride-co-hexafluoropropylene (PVDF-HFP) and Calcium Oxide (CaO) and the second coating layer (220) may comprise covalently bonded layer of Polydimethylsiloxane (PDMS) and Calcium Oxide (CaO). [Fig. 2(b) is the representative figure]
Notices, Deadlines & Correspondence
Patent Information
Applicants
GODI INDIA PVT. LTD
Inventors
1. Gangadharan, Athira Vysiappat
2. Majumder, Mandira
3. Venkateswarlu, Manohar Chinnareddy
4. Bellie, Hariprakash
5. Godi, Mahesh
Specification
Description:Please see the attached documents , Claims:Please see the attached documents
Documents
Application Documents
| # | Name | Date |
|---|---|---|
| 1 | 202341048000-STATEMENT OF UNDERTAKING (FORM 3) [17-07-2023(online)].pdf | 2023-07-17 |
| 2 | 202341048000-FORM FOR STARTUP [17-07-2023(online)].pdf | 2023-07-17 |
| 3 | 202341048000-FORM FOR SMALL ENTITY(FORM-28) [17-07-2023(online)].pdf | 2023-07-17 |
| 4 | 202341048000-FORM 1 [17-07-2023(online)].pdf | 2023-07-17 |
| 5 | 202341048000-EVIDENCE FOR REGISTRATION UNDER SSI(FORM-28) [17-07-2023(online)].pdf | 2023-07-17 |
| 6 | 202341048000-EVIDENCE FOR REGISTRATION UNDER SSI [17-07-2023(online)].pdf | 2023-07-17 |
| 7 | 202341048000-DRAWINGS [17-07-2023(online)].pdf | 2023-07-17 |
| 8 | 202341048000-DECLARATION OF INVENTORSHIP (FORM 5) [17-07-2023(online)].pdf | 2023-07-17 |
| 9 | 202341048000-COMPLETE SPECIFICATION [17-07-2023(online)].pdf | 2023-07-17 |
| 10 | 202341048000-FORM-9 [19-07-2023(online)].pdf | 2023-07-19 |
| 11 | 202341048000-STARTUP [21-07-2023(online)].pdf | 2023-07-21 |
| 12 | 202341048000-FORM28 [21-07-2023(online)].pdf | 2023-07-21 |
| 13 | 202341048000-FORM FOR STARTUP [21-07-2023(online)].pdf | 2023-07-21 |
| 14 | 202341048000-FORM 18A [21-07-2023(online)].pdf | 2023-07-21 |
| 15 | 202341048000-EVIDENCE FOR REGISTRATION UNDER SSI [21-07-2023(online)].pdf | 2023-07-21 |
| 16 | 202341048000-Proof of Right [09-08-2023(online)].pdf | 2023-08-09 |
| 17 | 202341048000-FORM-26 [09-08-2023(online)].pdf | 2023-08-09 |
| 18 | 202341048000-FER.pdf | 2023-09-13 |
| 19 | 202341048000-FORM 4(ii) [11-03-2024(online)].pdf | 2024-03-11 |
| 20 | 202341048000-Request Letter-Correspondence [02-05-2024(online)].pdf | 2024-05-02 |
| 21 | 202341048000-Form 1 (Submitted on date of filing) [02-05-2024(online)].pdf | 2024-05-02 |
| 22 | 202341048000-Covering Letter [02-05-2024(online)].pdf | 2024-05-02 |
| 23 | 202341048000-CERTIFIED COPIES TRANSMISSION TO IB [02-05-2024(online)].pdf | 2024-05-02 |
| 24 | 202341048000-FORM-26 [03-05-2024(online)].pdf | 2024-05-03 |
| 25 | 202341048000-MARKED COPIES OF AMENDEMENTS [11-06-2024(online)].pdf | 2024-06-11 |
| 26 | 202341048000-FORM 13 [11-06-2024(online)].pdf | 2024-06-11 |
| 27 | 202341048000-FER_SER_REPLY [11-06-2024(online)].pdf | 2024-06-11 |
| 28 | 202341048000-CORRESPONDENCE [11-06-2024(online)].pdf | 2024-06-11 |
| 29 | 202341048000-CLAIMS [11-06-2024(online)].pdf | 2024-06-11 |
| 30 | 202341048000-AMMENDED DOCUMENTS [11-06-2024(online)].pdf | 2024-06-11 |
| 31 | 202341048000-US(14)-HearingNotice-(HearingDate-09-08-2024).pdf | 2024-07-10 |
| 32 | 202341048000-FORM-8 [06-08-2024(online)].pdf | 2024-08-06 |
| 33 | 202341048000-Correspondence to notify the Controller [08-08-2024(online)].pdf | 2024-08-08 |
| 34 | 202341048000-Written submissions and relevant documents [26-08-2024(online)].pdf | 2024-08-26 |
| 35 | 202341048000-Annexure [26-08-2024(online)].pdf | 2024-08-26 |
| 36 | 202341048000-Response to office action [17-12-2024(online)].pdf | 2024-12-17 |
| 37 | 202341048000-Response to office action [17-12-2024(online)]-1.pdf | 2024-12-17 |
| 38 | 202341048000-Response to office action [29-03-2025(online)].pdf | 2025-03-29 |
| 39 | 202341048000-Response to office action [29-03-2025(online)]-1.pdf | 2025-03-29 |
| 40 | 202341048000-US(14)-HearingNotice-(HearingDate-02-12-2025).pdf | 2025-10-31 |
Search Strategy
| 1 | SearchHistoryE_12-09-2023.pdf |