Prosecution Insights
Last updated: July 17, 2026
Application No. 18/021,307

BUTTON-TYPE SECONDARY BATTERY

Non-Final OA §103
Filed
Feb 14, 2023
Priority
Oct 12, 2020 — RE 10-2020-0131453 +1 more
Examiner
MCNULTY, SEAMUS PATRICK
Art Unit
1752
Tech Center
1700 — Chemical & Materials Engineering
Assignee
LG Energy Solution Ltd.
OA Round
3 (Non-Final)
49%
Grant Probability
Moderate
3-4
OA Rounds
0m
Est. Remaining
80%
With Interview

Examiner Intelligence

Grants 49% of resolved cases
49%
Career Allowance Rate
18 granted / 37 resolved
-16.4% vs TC avg
Strong +32% interview lift
Without
With
+31.7%
Interview Lift
resolved cases with interview
Typical timeline
3y 4m
Avg Prosecution
40 currently pending
Career history
97
Total Applications
across all art units

Statute-Specific Performance

§103
91.9%
+51.9% vs TC avg
§102
6.8%
-33.2% vs TC avg
Black line = Tech Center average estimate • Based on career data from 37 resolved cases

Office Action

§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 . Response to Amendment The amendments as filed 03/23/2026 have been filed and overcome the 103 rejection as previously set forth in final office action filed 02/10/2026. New grounds of rejection are set forth below. Continued Examination Under 37 CFR 1.114 A request for continued examination under 37 CFR 1.114, including the fee set forth in 37 CFR 1.17(e), was filed in this application after final rejection. Since this application is eligible for continued examination under 37 CFR 1.114, and the fee set forth in 37 CFR 1.17(e) has been timely paid, the finality of the previous Office action has been withdrawn pursuant to 37 CFR 1.114. Applicant's submission filed on 04/29/2026 has been entered. Claim Rejections - 35 USC § 103 In the event the determination of the status of the application as subject to AIA 35 U.S.C. 102 and 103 (or as subject to pre-AIA 35 U.S.C. 102 and 103) is incorrect, any correction of the statutory basis (i.e., changing from AIA to pre-AIA ) for the rejection will not be considered a new ground of rejection if the prior art relied upon, and the rationale supporting the rejection, would be the same under either status. 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. Claims 1, 3, 5, 6, 8, 10-11, and 14-16 are rejected under 35 U.S.C. 103 as being unpatentable over by (US-20230011273-A1) hereinafter referred to as ‘Lee’, in view of (US-20220102789-A1) hereinafter referred to ‘Shimizu’ Regarding Claim 1, Lee teaches a button-type secondary battery (Lee, rechargeable battery, 1, Fig. 1) comprising: an electrode assembly in which electrodes and a separator are wound electrode tabs (Lee, “The electrode assembly may be wound with respect to a rotation axis by which the first electrode,”, see [0016]) having different polarities protrude from top and bottom surfaces (Lee, first and second electrode tabs, 81 and 82, Fig. 3), respectively; a can comprising a bottom part the electrode assembly and connected to one electrode tab (Lee, second electrode tab, 82, Fig. 3) and a sidewall vertically extending along a circumference of the bottom part (Lee, bottom plate, 24, see Fig. 3); and a top cap assembly with a terminal part connected to the other electrode tab (Lee, first electrode tab, 81, Fig. 3) and a plate coupled to be insulated from the terminal part and having an edge coupled to an upper end of the sidewall (Lee, insulator, 70, Fig. 3) , when the electrode assembly is mounted in the can, the top cap assembly is coupled to close the can, wherein an end of an edge of the plate is welded to be coupled after being seated on a point that meets the upper end of the sidewall (Lee, “the cap assembly 80 may close and seal the opening 21 of the case 20, and may be welded and combined to the opening 21.”, see [0063]). Lee does not teach wherein at the edge of the plate where the plate is coupled to the upper end of the sidewall, a top surface of the plate is at a first height, and the upper end of the sidewall is at a second height; at an inner edge of the plate adjacent to the terminal part, the top surface of the plate is at a third height; and the first height, which is different from the second height, is same as the third height. Shimizu teaches wherein at the edge of the plate where the plate is coupled to the upper end of the sidewall, a top surface of the plate is at a first height, and the upper end of the sidewall is at a second height; at an inner edge of the plate adjacent to the terminal part, the top surface of the plate is at a third height; and the first height, which is different from the second height, is same as the third height (the examiner notes that Shimizu does not teach insulation near the terminal but in combination with Lee it would). PNG media_image1.png 626 790 media_image1.png Greyscale Shimizu teaches that this positioning and shape can increase the energy density of the battery (Shimizu, “For example, the electrode body can be disposed at a position in more proximity to the terminal portion, or the height of the electrode body can be increased to a position in proximity to the terminal portion. Accordingly, the energy density of the battery can be increased.”, see [0037]). Lee and Shimizu are analogous as they are both of the same field of battery cases. It would have bene obvious to one of ordinary skill in the art before the effective filing date of the claimed invention to have modified the wall and cap of the cell as taught in Lee to have the features and shape as taught in Shimizu in order to allow for the positioning of the electrode body to allow for increased energy density. Regarding Claim 3, Lee teaches the button-type secondary a button-type secondary battery (Lee, rechargeable battery, 1, Fig. 1) comprising: an electrode assembly in which electrodes and a separator are wound electrode tabs (Lee, “The electrode assembly may be wound with respect to a rotation axis by which the first electrode,”, see [0016]) having different polarities protrude from top and bottom surfaces (Lee, first and second electrode tabs, 81 and 82, Fig. 3), respectively; a can comprising a bottom part the electrode assembly and connected to one electrode tab (Lee, second electrode tab, 82, Fig. 3) and a sidewall vertically extending along a circumference of the bottom part (Lee, bottom plate, 24, see Fig. 3); and a top cap assembly with a terminal part connected to another electrode tab (Lee, first electrode tab, 81, Fig. 3) and a plate coupled to be insulated from the terminal part and having an edge coupled to an upper end of the sidewall (Lee, insulator, 70, Fig. 3) , when the electrode assembly is mounted in the can, the top cap assembly is coupled to close the can, wherein an end of an edge of the plate is welded to be coupled after being seated on a point that meets the upper end of the sidewall (Lee, “the cap assembly 80 may close and seal the opening 21 of the case 20, and may be welded and combined to the opening 21.”, see [0063]). Lee does not teach wherein a top surface of the plate is positioned at a height difference from the upper end of the sidewall and an exposed outside side surface between the exposed outer upper surface and the exposed outer bottom surface and wherein the exposed outer side surface protrudes outward in a horizontal direction from the exposed outer circumferential surface of the lower portion of the side wall, wherein the side wall has a lower portion, and the upper end of the side wall is located above the lower portion wherein the upper end of the sidewall is bent to have a shape that protrudes outward from an exposed outer circumferential surface thereof of the sidewall thereof, and wherein the shape has an upper outer surface an exposed outer bottom surface wherein a protrusion on which a stepped portion is formed is on an inner circumferential surface at the upper end of the sidewall, and the end of the edge of the plate is coupled to be seated on the protrusion. Shimizu teaches and an exposed outside side surface between the exposed outer upper surface and the exposed outer bottom surface and wherein the exposed outer side surface protrudes outward in a horizontal direction from the exposed outer circumferential surface of the lower portion of the side wall, wherein the side wall has a lower portion, and the upper end of the side wall is located above the lower portion wherein the upper end of the sidewall is bent to have a shape that protrudes outward from an exposed outer circumferential surface thereof of the sidewall thereof, and wherein the shape has an upper outer surface an exposed outer bottom surface wherein a protrusion on which a stepped portion is formed is on an inner circumferential surface at the upper end of the sidewall, and the end of the edge of the plate is coupled to be seated on the protrusion (see annotated figure below). PNG media_image2.png 402 809 media_image2.png Greyscale Shimizu teaches that this positioning and shape can increase the energy density of the battery (Shimizu, “For example, the electrode body can be disposed at a position in more proximity to the terminal portion, or the height of the electrode body can be increased to a position in proximity to the terminal portion. Accordingly, the energy density of the battery can be increased.”, see [0037]). Lee and Shimizu are analogous as they are both of the same field of battery cases. It would have bene obvious to one of ordinary skill in the art before the effective filing date of the claimed invention to have modified the wall and cap of the cell as taught in Lee to have the features and shape as taught in Shimizu in order to allow for the positioning of the electrode body to allow for increased energy density. Regarding Claim 5, Lee teaches a secondary a button-type secondary battery (Lee, rechargeable battery, 1, Fig. 1) comprising: an electrode assembly in which electrodes and a separator are wound electrode tabs (Lee, “The electrode assembly may be wound with respect to a rotation axis by which the first electrode,”, see [0016]) having different polarities protrude from top and bottom surfaces (Lee, first and second electrode tabs, 81 and 82, Fig. 3), respectively; a can comprising a bottom part the electrode assembly and connected to one electrode tab (Lee, second electrode tab, 82, Fig. 3) and a sidewall vertically extending along a circumference of the bottom part (Lee, bottom plate, 24, see Fig. 3); and a top cap assembly with a terminal part connected to the other electrode tab (Lee, first electrode tab, 81, Fig. 3) and a plate coupled to be insulated from the terminal part and having an edge coupled to an upper end of the sidewall (Lee, insulator, 70, Fig. 3) , when the electrode assembly is mounted in the can, the top cap assembly is coupled to close the can, wherein an end of an edge of the plate is welded to be coupled after being seated on a point that meets the upper end of the sidewall (Lee, “the cap assembly 80 may close and seal the opening 21 of the case 20, and may be welded and combined to the opening 21.”, see [0063]). Lee does not teach wherein the sidewall has a lower portion, and the upper end of the sidewall is located above the lower portion. Wherein the sidewall has a lower portion, and the upper end of the sidewall is located above the lower portion, wherein the upper end of the sidewall is in an inwardly bent shape that protrudes inward in a horizontal direction from an inner circumferential surface of the lower portion of the sidewall, wherein the inwardly bent shape of the upper end of the sidewall has an upper surface that is partially but not entirely covered by the plate and wherein a protrusion at a portion of the end of the edge of the plate so as to be seated on an end of the sidewall. Shimizu teaches wherein the sidewall has a lower portion, and the upper end of the sidewall is located above the lower portion. Wherein the sidewall has a lower portion, and the upper end of the sidewall is located above the lower portion, wherein the upper end of the sidewall is in an inwardly bent shape that protrudes inward in a horizontal direction from an inner circumferential surface of the lower portion of the sidewall, wherein the inwardly bent shape of the upper end of the sidewall has an upper surface that is partially but not entirely covered by the plate and wherein a protrusion at a portion of the end of the edge of the plate so as to be seated on an end of the sidewall (see annotated figure below). PNG media_image2.png 402 809 media_image2.png Greyscale Shimizu teaches that this positioning and shape can increase the energy density of the battery (Shimizu, “For example, the electrode body can be disposed at a position in more proximity to the terminal portion, or the height of the electrode body can be increased to a position in proximity to the terminal portion. Accordingly, the energy density of the battery can be increased.”, see [0037]). Lee and Shimizu are analogous as they are both of the same field of battery cases. It would have bene obvious to one of ordinary skill in the art before the effective filing date of the claimed invention to have modified the wall and cap of the cell as taught in Lee to have the features and shape as taught in Shimizu in order to allow for the positioning of the electrode body to allow for increased energy density. Regarding Claim 6, Modified Lee teaches the button-type secondary battery of claim 1, wherein the upper end of the sidewall has a groove of which an upper side and an outer side are connected to each other to a recessed shape, and a projection seated on the upper end of the sidewall and inserted into the groove protrudes from the end of the edge of the plate (see annotated figure below). PNG media_image3.png 524 419 media_image3.png Greyscale Regarding Claim 8, Modified Lee teaches the button-type secondary battery of claim 1, wherein a bent part that is expanded outward from the upper end of the sidewall when the plate is seated on the sidewall and is bent downward is on the end of the edge of the plate (see annotated figure below). PNG media_image4.png 524 478 media_image4.png Greyscale Regarding Claim 10, Modified Lee teaches the button-type secondary battery of claim 1, wherein the upper end of the sidewall is bent in an outwardly protruding shape, wherein the upper side of the sidewall is flat, and the plate is coupled to be seated on the flat upper side of the sidewall (see annotated figure below). PNG media_image5.png 524 478 media_image5.png Greyscale Regarding Claim 11, Modified Lee teaches the button-type secondary battery of claim 1, wherein a protrusion a stepped portion is at a lower side at the edge of the edge of the plate, and the protrusion is coupled to be seated on the upper end of the sidewall (see annotated figure below). PNG media_image6.png 524 451 media_image6.png Greyscale Regarding Claim 14, Modified Lee teaches he button-type secondary battery of claim 1, wherein the first height is greater than the second heigh (Hiratsuka, cover, 2, Fig. 8)(see annotated figure below) . PNG media_image1.png 626 790 media_image1.png Greyscale Regarding Claim 15, Modified Lee teaches the button-type secondary battery of claim 3, wherein the exposed outer bottom surface is perpendicular to the exposed outer circumferential surface of the lower portion sidewall (Hiratsuka, cover, 2, Fig. 8) (see annotated figure below). PNG media_image1.png 626 790 media_image1.png Greyscale Regarding Claim 16, Lee teaches the button-type secondary battery of claim 5, wherein at one side of the plate, an end of a top surface of the plate is offset outwardly from an end of a bottom surface of the plate (Hiratsuka, cover, 2, Fig. 8) (see annotated figure below) . Regarding Claim 17, Modified Lee teaches the button-type secondary battery of claim 5, wherein the inwardly bent shape of the upper end of the sidewall has an exposed bottom surface that partially but not entirely overlaps the plate in a vertical direction (see annotated figure below). Regarding Claim 18, Modified Lee the button-type secondary battery of claim 1, further comprising: a gasket disposed between the terminal part and the plate, wherein the plate is insulated from the terminal part by the gasket (Shimizu, gasket, 320, Fig. 4)(Shimizu, “The sealing member 300 includes a terminal portion 310, a gasket 320, and a lid portion 330.”, see [0088]). PNG media_image7.png 626 793 media_image7.png Greyscale Response to Arguments Applicant's arguments filed 04/29/2026 have been fully considered but they are not persuasive. On pg. 7 of the applicants’ arguments, the applicant argues: “The Advisory Action appears to equate the top of terminal 3 in Fig. 9 of Hiratsuka with the claimed ‘third height’ . Applicant respectfully submits that this mapping is inconsistent with the claim language…Thus, the claimed ‘third height’ refers to the height of the tope surface of the plate that is insulated from the terminal part, not the height of the terminal part itself. The top of terminal 3 in Hiratsuka therefore cannot correspond to the claimed ‘third height’.” The examiner finds this persuasive and has added to the record (US-20220102789-A1) hereinafter referred to ‘Shimizu’ which teaches the bent and partially overlapping edge of the cap with the first height, second height, and third height as claimed, as outlined above. Conclusion Any inquiry concerning this communication or earlier communications from the examiner should be directed to SEAMUS PATRICK MCNULTY whose telephone number is (703)756-1909. The examiner can normally be reached Monday- Friday 8:00am to 5pm. 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, Nicholas A. Smith can be reached at (571) 272-8760. 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. /S.P.M./Examiner, Art Unit 1752 /NICHOLAS A SMITH/Supervisory Primary Examiner, Art Unit 1752
Read full office action

Prosecution Timeline

Show 3 earlier events
Oct 29, 2025
Examiner Interview Summary
Oct 29, 2025
Applicant Interview (Telephonic)
Nov 13, 2025
Response Filed
Feb 10, 2026
Final Rejection mailed — §103
Mar 23, 2026
Response after Non-Final Action
Apr 29, 2026
Request for Continued Examination
May 03, 2026
Response after Non-Final Action
Jun 11, 2026
Non-Final Rejection mailed — §103 (current)

Precedent Cases

Applications granted by this same examiner with similar technology

Patent 12671108
Sheet for Battery Cases Having Gas Pocket Portion Formed In Movement Direction, Battery Cell Manufactured Using the Same, and Method of Manufacturing the Battery Cell
3y 7m to grant Granted Jun 30, 2026
Patent 12658539
BATTERY CELL
3y 4m to grant Granted Jun 16, 2026
Patent 12651748
CLASS OF CATHODE MATERIALS AND SECONDARY ION BATTERIES CONTAINING THESE CATHODE MATERIALS
3y 8m to grant Granted Jun 09, 2026
Patent 12646720
COVALENT ORGANIC FRAMEWORK AND ITS ELECTOCHEMICAL USE
3y 4m to grant Granted Jun 02, 2026
Patent 12633587
BATTERY MODULE AND METHOD FOR PRODUCING SUCH A BATTERY MODULE
3y 10m to grant Granted May 19, 2026
Study what changed to get past this examiner. Based on 5 most recent grants.

Strategy Recommendation AI-generated — please review before filing

Get a prosecution strategy drawn from examiner precedents, rejection analysis, and claim mapping.
Typically takes 5-10 seconds — AI-generated, attorney review required before filing

Prosecution Projections

3-4
Expected OA Rounds
49%
Grant Probability
80%
With Interview (+31.7%)
3y 4m (~0m remaining)
Median Time to Grant
High
PTA Risk
Based on 37 resolved cases by this examiner. Grant probability derived from career allowance rate.

Sign in with your work email

Enter your email to receive a magic link. No password needed.

Personal email addresses (Gmail, Yahoo, etc.) are not accepted.

Free tier: 3 strategy analyses per month