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"Lithium Iron Phosphate Having Olivine Structure And Method For Preparing The Same"
Abstract: Provided is an olivine-type lithium iron phosphate composed of secondary particles having a mean particle diameter (D50) of 5 to 100 µm, formed by aggregation of primary particles having a mean particle diameter (D50) of 50 to 550 nm, wherein the primary and secondary particles have a composition represented by Formula I below and the secondary particles have a porosity of 15 to 40%: Li1+aFe1-x Mx(PO4-b)Xb (I) wherein M, X, a, x and b are as defined above. The olivine-type lithium iron phosphate is in the form of secondary particles, thus imparting a high bulk density to lithium secondary batteries and exhibiting superior process efficiency due to shortened mixing time, when used to fabricate the lithium secondary batteries. Furthermore, the olivine-type lithium iron phosphate has the high porosity, thus allowing at least a portion of the secondary particles to be deformed and converted into primary particles in the process of pressing to fabricate electrodes and preventing deterioration in ionic conductivity due to the large particle diameter.
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Notices, Deadlines & Correspondence
Notices, Deadlines & Correspondence
Patent Information
Application #
Filing Date
18 April 2011
Publication Number
12/2012
Publication Type
INA
Invention Field
CHEMICAL
Status
Email
Parent Application
Patent Number
Legal Status
Grant Date
2016-10-26
Renewal Date
Applicants
LG CHEM, LTD.
20, YOIDO-DONG, YOUNGDUNGPO-GU, SEOUL 150-721, REPUBLIC OF KOREA
Inventors
1. SANGHOON CHOY
106-102, COUNTIES VILLA, 495, NOEUN-DONG, YUSEONG-GU, DAEJEON 305-325, REPUBLIC OF KOREA
2. YONG TAE LEE
126-32, GYEONGWONDONG 1-GA, WANSAN-GU, JEONJU-SI, JEOLLABUK-DO 560-021, REPUBLIC OF KOREA
3. HONG-KYU PARK
301-1306, SONGRIMMAEUL APT., HAGI-DONG, YUSEONG-GU, DAEJEON 305-759, REPUBLIC OF KOREA
4. SOO MIN PARK
112-1001, HANMAEUL ATP., SONGGANG-DONG, YUSEONG-GU, DAEJEON 305-756, REPUBLIC OF KOREA
5. JI EUN LEE
202-5, DONGBU CENTREVILLE, 381, NAMGAJWA-DONG, SEODAEMUN-GU SEOUL 120-120, REPUBLIC OF KOREA
Specification
Documents
Application Documents
| # | Name | Date |
|---|---|---|
| 1 | 2833-DELNP-2011-RELEVANT DOCUMENTS [21-08-2023(online)].pdf | 2023-08-21 |
| 1 | 2985-del-2005-Correspondence-others-(15-03-2010).pdf | 2010-03-15 |
| 2 | 2833-DELNP-2011-ASSIGNMENT WITH VERIFIED COPY [18-11-2022(online)].pdf | 2022-11-18 |
| 2 | 2985-del-2005-Correspondence-others-(29-09-2011).pdf | 2011-09-29 |
| 3 | 2833-delnp-2011-PCT-304-(04-10-2011).pdf | 2011-10-04 |
| 3 | 2833-DELNP-2011-FORM-16 [18-11-2022(online)].pdf | 2022-11-18 |
| 4 | 2833-DELNP-2011-POWER OF AUTHORITY [18-11-2022(online)].pdf | 2022-11-18 |
| 4 | 2833-delnp-2011-Correspondence-others-(04-10-2011).pdf | 2011-10-04 |
| 5 | 2833-DELNP-2011-RELEVANT DOCUMENTS [15-09-2022(online)].pdf | 2022-09-15 |
| 5 | 2833-delnp-2011-Form-18-(12-10-2011).pdf | 2011-10-12 |
| 6 | 2833-DELNP-2011-RELEVANT DOCUMENTS [22-09-2021(online)].pdf | 2021-09-22 |
| 6 | 2833-delnp-2011-Correspondence Others-(12-10-2011).pdf | 2011-10-12 |
| 7 | 2833-DELNP-2011-RELEVANT DOCUMENTS [23-08-2021(online)].pdf | 2021-08-23 |
| 7 | 2833-delnp-2011-GPA.pdf | 2011-12-21 |
| 8 | 2833-DELNP-2011-RELEVANT DOCUMENTS [21-02-2020(online)].pdf | 2020-02-21 |
| 8 | 2833-delnp-2011-Form-5.pdf | 2011-12-21 |
| 9 | 2833-delnp-2011-Form-3.pdf | 2011-12-21 |
| 9 | 2833-DELNP-2011-RELEVANT DOCUMENTS [28-03-2019(online)].pdf | 2019-03-28 |
| 10 | 276609-2833-DELNP-2011.pdf | 2018-12-10 |
| 10 | 2833-delnp-2011-Form-2.pdf | 2011-12-21 |
| 11 | 2833-delnp-2011-Form-18.pdf | 2011-12-21 |
| 11 | 2833-DELNP-2011-RELEVANT DOCUMENTS [31-03-2018(online)].pdf | 2018-03-31 |
| 12 | 2833-delnp-2011-Form-1.pdf | 2011-12-21 |
| 12 | Form 27 [07-04-2017(online)].pdf | 2017-04-07 |
| 13 | 2833-delnp-2011-Drawings.pdf | 2011-12-21 |
| 13 | 2833-DELNP-2011_EXAMREPORT.pdf | 2016-06-30 |
| 14 | 2833-delnp-2011-Correspondence Others-(22-01-2016).pdf | 2016-01-22 |
| 14 | 2833-delnp-2011-Description (Complete).pdf | 2011-12-21 |
| 15 | 2833-delnp-2011-Correspondence-others.pdf | 2011-12-21 |
| 15 | 2833-delnp-2011-PCT-301.pdf | 2015-11-02 |
| 16 | 2833-delnp-2011-Claims.pdf | 2011-12-21 |
| 16 | 2833-delnp-2011-PCT-308.pdf | 2015-11-02 |
| 17 | 2985-del-2005-PCT-101.pdf | 2015-11-02 |
| 17 | 2833-delnp-2011-Abstract.pdf | 2011-12-21 |
| 18 | 2833-delnp-2011--Abstract-(13-07-2015).pdf | 2015-07-13 |
| 18 | 2833-delnp-2011-Correspondence Others-(12-03-2015).pdf | 2015-03-12 |
| 19 | 2833-delnp-2011--Claims-(13-07-2015).pdf | 2015-07-13 |
| 19 | Petition under rule 137.pdf | 2015-05-05 |
| 20 | 2833-delnp-2011--Correspondence Other-(13-07-2015).pdf | 2015-07-13 |
| 20 | 2833-delnp-2011-Correspondence Others-(07-05-2015).pdf | 2015-05-07 |
| 21 | 2833-delnp-2011--Form-3-(13-07-2015).pdf | 2015-07-13 |
| 21 | 2833-delnp-2011-Assignment-(07-05-2015).pdf | 2015-05-07 |
| 22 | 2833-delnp-2011--GPA-(13-07-2015).pdf | 2015-07-13 |
| 22 | Response.pdf | 2015-07-13 |
| 23 | 2833-delnp-2011--Marked Claims-(13-07-2015).pdf | 2015-07-13 |
| 23 | Relevant Document.pdf | 2015-07-13 |
| 24 | Petition Under Rule 137.pdf_7.pdf | 2015-07-13 |
| 24 | 2833-delnp-2011-Correspondence Other-(13-07-2015).pdf | 2015-07-13 |
| 25 | 2833-delnp-2011-Other-(13-07-2015).pdf | 2015-07-13 |
| 25 | Copy of Amended Claims.pdf | 2015-07-13 |
| 26 | Abstract.pdf | 2015-07-13 |
| 26 | Complete Specification.pdf | 2015-07-13 |
| 27 | Abstract.pdf | 2015-07-13 |
| 27 | Complete Specification.pdf | 2015-07-13 |
| 28 | 2833-delnp-2011-Other-(13-07-2015).pdf | 2015-07-13 |
| 28 | Copy of Amended Claims.pdf | 2015-07-13 |
| 29 | 2833-delnp-2011-Correspondence Other-(13-07-2015).pdf | 2015-07-13 |
| 29 | Petition Under Rule 137.pdf_7.pdf | 2015-07-13 |
| 30 | 2833-delnp-2011--Marked Claims-(13-07-2015).pdf | 2015-07-13 |
| 30 | Relevant Document.pdf | 2015-07-13 |
| 31 | 2833-delnp-2011--GPA-(13-07-2015).pdf | 2015-07-13 |
| 31 | Response.pdf | 2015-07-13 |
| 32 | 2833-delnp-2011--Form-3-(13-07-2015).pdf | 2015-07-13 |
| 32 | 2833-delnp-2011-Assignment-(07-05-2015).pdf | 2015-05-07 |
| 33 | 2833-delnp-2011--Correspondence Other-(13-07-2015).pdf | 2015-07-13 |
| 33 | 2833-delnp-2011-Correspondence Others-(07-05-2015).pdf | 2015-05-07 |
| 34 | 2833-delnp-2011--Claims-(13-07-2015).pdf | 2015-07-13 |
| 34 | Petition under rule 137.pdf | 2015-05-05 |
| 35 | 2833-delnp-2011--Abstract-(13-07-2015).pdf | 2015-07-13 |
| 35 | 2833-delnp-2011-Correspondence Others-(12-03-2015).pdf | 2015-03-12 |
| 36 | 2985-del-2005-PCT-101.pdf | 2015-11-02 |
| 36 | 2833-delnp-2011-Abstract.pdf | 2011-12-21 |
| 37 | 2833-delnp-2011-Claims.pdf | 2011-12-21 |
| 37 | 2833-delnp-2011-PCT-308.pdf | 2015-11-02 |
| 38 | 2833-delnp-2011-Correspondence-others.pdf | 2011-12-21 |
| 38 | 2833-delnp-2011-PCT-301.pdf | 2015-11-02 |
| 39 | 2833-delnp-2011-Correspondence Others-(22-01-2016).pdf | 2016-01-22 |
| 39 | 2833-delnp-2011-Description (Complete).pdf | 2011-12-21 |
| 40 | 2833-delnp-2011-Drawings.pdf | 2011-12-21 |
| 40 | 2833-DELNP-2011_EXAMREPORT.pdf | 2016-06-30 |
| 41 | 2833-delnp-2011-Form-1.pdf | 2011-12-21 |
| 41 | Form 27 [07-04-2017(online)].pdf | 2017-04-07 |
| 42 | 2833-delnp-2011-Form-18.pdf | 2011-12-21 |
| 42 | 2833-DELNP-2011-RELEVANT DOCUMENTS [31-03-2018(online)].pdf | 2018-03-31 |
| 43 | 276609-2833-DELNP-2011.pdf | 2018-12-10 |
| 43 | 2833-delnp-2011-Form-2.pdf | 2011-12-21 |
| 44 | 2833-delnp-2011-Form-3.pdf | 2011-12-21 |
| 44 | 2833-DELNP-2011-RELEVANT DOCUMENTS [28-03-2019(online)].pdf | 2019-03-28 |
| 45 | 2833-delnp-2011-Form-5.pdf | 2011-12-21 |
| 45 | 2833-DELNP-2011-RELEVANT DOCUMENTS [21-02-2020(online)].pdf | 2020-02-21 |
| 46 | 2833-DELNP-2011-RELEVANT DOCUMENTS [23-08-2021(online)].pdf | 2021-08-23 |
| 46 | 2833-delnp-2011-GPA.pdf | 2011-12-21 |
| 47 | 2833-DELNP-2011-RELEVANT DOCUMENTS [22-09-2021(online)].pdf | 2021-09-22 |
| 47 | 2833-delnp-2011-Correspondence Others-(12-10-2011).pdf | 2011-10-12 |
| 48 | 2833-DELNP-2011-RELEVANT DOCUMENTS [15-09-2022(online)].pdf | 2022-09-15 |
| 48 | 2833-delnp-2011-Form-18-(12-10-2011).pdf | 2011-10-12 |
| 49 | 2833-DELNP-2011-POWER OF AUTHORITY [18-11-2022(online)].pdf | 2022-11-18 |
| 49 | 2833-delnp-2011-Correspondence-others-(04-10-2011).pdf | 2011-10-04 |
| 50 | 2833-delnp-2011-PCT-304-(04-10-2011).pdf | 2011-10-04 |
| 50 | 2833-DELNP-2011-FORM-16 [18-11-2022(online)].pdf | 2022-11-18 |
| 51 | 2833-DELNP-2011-ASSIGNMENT WITH VERIFIED COPY [18-11-2022(online)].pdf | 2022-11-18 |
| 51 | 2985-del-2005-Correspondence-others-(29-09-2011).pdf | 2011-09-29 |
| 52 | 2833-DELNP-2011-RELEVANT DOCUMENTS [21-08-2023(online)].pdf | 2023-08-21 |
| 52 | 2985-del-2005-Correspondence-others-(15-03-2010).pdf | 2010-03-15 |