Prosecution Insights
Last updated: July 17, 2026
Application No. 18/036,736

Secondary Battery and Device Including the Same

Final Rejection §102§103
Filed
May 12, 2023
Priority
Dec 01, 2020 — RE 10-2020-0165723 +1 more
Examiner
LA RAIA III, LAWRENCE
Art Unit
1727
Tech Center
1700 — Chemical & Materials Engineering
Assignee
LG Energy Solution Ltd.
OA Round
2 (Final)
72%
Grant Probability
Favorable
3-4
OA Rounds
3m
Est. Remaining
99%
With Interview

Examiner Intelligence

Grants 72% — above average
72%
Career Allowance Rate
23 granted / 32 resolved
+6.9% vs TC avg
Strong +34% interview lift
Without
With
+34.4%
Interview Lift
resolved cases with interview
Typical timeline
3y 5m
Avg Prosecution
25 currently pending
Career history
72
Total Applications
across all art units

Statute-Specific Performance

§103
90.3%
+50.3% vs TC avg
§102
3.4%
-36.6% vs TC avg
§112
4.8%
-35.2% vs TC avg
Black line = Tech Center average estimate • Based on career data from 32 resolved cases

Office Action

§102 §103
DETAILED ACTION Notice of Pre-AIA or AIA Status The present application, filed on or after March 16, 2013, is being examined under the first inventor to file provisions of the AIA . Priority Acknowledgment is made of applicant’s claim for foreign priority under 35 U.S.C. 119 (a)-(d). The certified copy has been filed in parent Application No. KR10-2020-0165723, filed on 12/1/2020. Information Disclosure Statement The information disclosure statements (IDSs) submitted 5/12/2023, 8/7/2024, and 8/19/2025 were received and are being considered by the examiner. Drawings The drawings submitted on 5/12/2023 are acceptable. Specification The title of the invention is not descriptive. A new title is required that is clearly indicative of the invention to which the claims are directed. The following title is suggested: SECONDARY BATTERY WITH A FLEXIBLE AND STRETCHABLE ELECTRODE LEAD. Claim Rejections - 35 USC § 102 The following is a quotation of the appropriate paragraphs of 35 U.S.C. 102 that form the basis for the rejections under this section made in this Office action: A person shall be entitled to a patent unless – (a)(1) the claimed invention was patented, described in a printed publication, or in public use, on sale, or otherwise available to the public before the effective filing date of the claimed invention. This application currently names joint inventors. In considering patentability of the claims the examiner presumes that the subject matter of the various claims was commonly owned as of the effective filing date of the claimed invention(s) absent any evidence to the contrary. Applicant is advised of the obligation under 37 CFR 1.56 to point out the inventor and effective filing dates of each claim that was not commonly owned as of the effective filing date of the later invention in order for the examiner to consider the applicability of 35 U.S.C. 102(b)(2)(C) for any potential 35 U.S.C. 102(a)(2) prior art against the later invention. Claims 1-2, 5-7, 8-9, and 11 are rejected under 35 U.S.C. 102(a)(1) as being anticipated by US 20190173073 A1, AHN et al. provided in the IDS dated 8/19/2025. Regarding claim 1. AHN discloses a secondary battery comprising in the annotated figure depicted below: [0011] an electrode assembly (110) including [0034] a plurality of electrode sheets on which with [0009] electrode tabs are formed thereon (figure 1) and [0034] a separator located between the electrode sheets; [0011] a battery case (121) in which the electrode assembly is configured to be housed; and [0011] an electrode lead connected to the electrode tab and protruding to the outside of the battery case (figure 2), wherein [0011] the electrode lead includes a flexible part called a bending connection portion having stretchability in a direction parallel to the protruding direction of the electrode lead, and wherein the flexible part is located inside the battery case. PNG media_image1.png 702 660 media_image1.png Greyscale Regarding claim 2. AHN discloses the secondary battery of claim 1 in the annotated figure depicted above, wherein: the flexible part has a bent shape (114a). Regarding claim 5. AHN discloses the secondary battery of claim 1 in the annotated figure depicted below, wherein: [0017] the battery case comprises an upper case and a lower case, a sealing part of the upper case and a sealing part of the lower case are [0018] heat-sealed to each other called a molding process, and the flexible part is located between a portion of the electrode lead where the sealing parts are located and the electrode assembly. PNG media_image2.png 702 747 media_image2.png Greyscale Regarding claim 6. AHN discloses the secondary battery of claim 1 in the annotated figure depicted below, wherein: the electrode lead comprises a first part connected to the flexible part and the electrode tab; a second part connected to the flexible part and protruding to the an outside of the battery case; and a fixing part connected to each of the first part and the second part. PNG media_image3.png 461 750 media_image3.png Greyscale Regarding claim 7. AHN discloses the secondary battery of claim 6 in the annotated figure depicted below, wherein: the flexible part comprises a first flexible part and a second flexible part, and the fixing part is located between the first flexible part and the second flexible part. PNG media_image4.png 504 832 media_image4.png Greyscale Regarding claim 8. AHN discloses the secondary battery of claim 6. AHN [0035] discloses the electrode tabs are a metal material/ aluminum foil. Regarding claim 9. AHN discloses the secondary battery of claim 6 in the annotated figure depicted above, wherein: the fixing part has a straight line shape. Regarding claim 11. [0003] A device such as an electric vehicle comprising the secondary battery as set forth in claim 1. Claim Rejections - 35 USC § 103 The following is a quotation of 35 U.S.C. 103 which forms the basis for all obviousness rejections set forth in this Office action: A patent for a claimed invention may not be obtained, notwithstanding that the claimed invention is not identically disclosed as set forth in section 102, if the differences between the claimed invention and the prior art are such that the claimed invention as a whole would have been obvious before the effective filing date of the claimed invention to a person having ordinary skill in the art to which the claimed invention pertains. Patentability shall not be negated by the manner in which the invention was made. The factual inquiries for establishing a background for determining obviousness under 35 U.S.C. 103 are summarized as follows: 1. Determining the scope and contents of the prior art. 2. Ascertaining the differences between the prior art and the claims at issue. 3. Resolving the level of ordinary skill in the pertinent art. 4. Considering objective evidence present in the application indicating obviousness or nonobviousness. This application currently names joint inventors. In considering patentability of the claims the examiner presumes that the subject matter of the various claims was commonly owned as of the effective filing date of the claimed invention(s) absent any evidence to the contrary. Applicant is advised of the obligation under 37 CFR 1.56 to point out the inventor and effective filing dates of each claim that was not commonly owned as of the effective filing date of the later invention in order for the examiner to consider the applicability of 35 U.S.C. 102(b)(2)(C) for any potential 35 U.S.C. 102(a)(2) prior art against the later invention. Claim 4 is rejected under 35 U.S.C. 103 as being unpatentable over US 20190173073 A1, AHN et al. provided in the IDS dated 8/19/2025 in view of US 20180309112 A1, KIM et al. Regarding claim 4. AHN discloses the secondary battery of claim 1, AHN does not disclose the flexible part comprises at least one of gold (Au) and silver (Ag). KIM [title] discloses A Pouch-Shaped Secondary Battery Including Micro-Perforated Electrode Lead Having Adhesive Properties where KIM [0071] discloses the “electrode lead may be made of platinum (Pt), gold (Au), palladium (Pd), iridium (Ir), silver (Ag)”, both silver and gold being widely used in the art for its conductive and malleable properties. It would have been obvious to one of ordinary skill in the art before the effective filing date to have used gold or silver in the flexible electrode lead from a limited list of highly malleable and conductive materials. Claim 10 are rejected under 35 U.S.C. 103 as being unpatentable over US 20190173073 A1, AHN et al. provided in the IDS dated 8/19/2025. Regarding claim 10. AHN discloses the secondary battery of claim 1, wherein: [0034] the electrode assembly is a stacked-type electrode assembly in which the electrode sheets are stacked, AHN does not explicitly discloses that when the plurality of electrode sheets expand in the thickness direction, the flexible part is configured to stretches in a direction perpendicular to the thickness direction. However, AHN by it’s design shows that when the electrode sheets expand in the thickness direction, the flexible part is configured to stretch in a direction perpendicular to the thickness direction as shown in the annotated figure depicted below. PNG media_image5.png 870 916 media_image5.png Greyscale It would have been obvious to one of ordinary skill in the art to have met the limitations of the claim by following the battery design disclosed by AHN which was published before the instant application’s effective filing date. Conclusion The prior art made of record and not relied upon is considered pertinent to applicant's disclosure. US 20060216600 A1, INAGAKI et al. Any inquiry concerning this communication or earlier communications from the examiner should be directed to LAWRENCE LA RAIA III whose telephone number is (703)756-5441. The examiner can normally be reached Mon-Thur 6:00am-4:00pm. Examiner interviews are available via telephone, in-person, and video conferencing using a USPTO supplied web-based collaboration tool. To schedule an interview, applicant is encouraged to use the USPTO Automated Interview Request (AIR) at http://www.uspto.gov/interviewpractice. If attempts to reach the examiner by telephone are unsuccessful, the examiner’s supervisor, Barbara Gilliam can be reached at (571) 272-1330. The fax phone number for the organization where this application or proceeding is assigned is 571-273-8300. Information regarding the status of published or unpublished applications may be obtained from Patent Center. Unpublished application information in Patent Center is available to registered users. To file and manage patent submissions in Patent Center, visit: https://patentcenter.uspto.gov. Visit https://www.uspto.gov/patents/apply/patent-center for more information about Patent Center and https://www.uspto.gov/patents/docx for information about filing in DOCX format. For additional questions, contact the Electronic Business Center (EBC) at 866-217-9197 (toll-free). If you would like assistance from a USPTO Customer Service Representative, call 800-786-9199 (IN USA OR CANADA) or 571-272-1000. LAWRENCE LA RAIA III Examiner Art Unit 1727 /L.L./Examiner, Art Unit 1727 /Maria Laios/Primary Examiner, Art Unit 1727
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Prosecution Timeline

May 12, 2023
Application Filed
Dec 22, 2025
Non-Final Rejection mailed — §102, §103
Mar 19, 2026
Response Filed
Jul 14, 2026
Final Rejection mailed — §102, §103 (current)

Precedent Cases

Applications granted by this same examiner with similar technology

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SURFACE MODIFIED CATHODE ACTIVE MATERIALS
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Study what changed to get past this examiner. Based on 5 most recent grants.

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Prosecution Projections

3-4
Expected OA Rounds
72%
Grant Probability
99%
With Interview (+34.4%)
3y 5m (~3m remaining)
Median Time to Grant
Moderate
PTA Risk
Based on 32 resolved cases by this examiner. Grant probability derived from career allowance rate.

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