Prosecution Insights
Last updated: July 17, 2026
Application No. 18/034,377

NON-AQUEOUS ELECTROLYTE FOR A LITHIUM ION BATTERY AND LITHIUM ION BATTERY

Non-Final OA §112
Filed
Apr 27, 2023
Priority
Nov 03, 2020 — CN 202011209851.9 +1 more
Examiner
WEINER, LAURA S
Art Unit
1723
Tech Center
1700 — Chemical & Materials Engineering
Assignee
Shenzhen Capchem Technology Co. Ltd.
OA Round
1 (Non-Final)
85%
Grant Probability
Favorable
1-2
OA Rounds
0m
Est. Remaining
99%
With Interview

Examiner Intelligence

Grants 85% — above average
85%
Career Allowance Rate
984 granted / 1155 resolved
+20.2% vs TC avg
Moderate +14% lift
Without
With
+14.3%
Interview Lift
resolved cases with interview
Typical timeline
3y 1m
Avg Prosecution
45 currently pending
Career history
1189
Total Applications
across all art units

Statute-Specific Performance

§101
0.4%
-39.6% vs TC avg
§103
50.8%
+10.8% vs TC avg
§102
15.5%
-24.5% vs TC avg
§112
18.0%
-22.0% vs TC avg
Black line = Tech Center average estimate • Based on career data from 1155 resolved cases

Office Action

§112
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 . Election/Restrictions Applicant’s election without traverse of Species 5, compound 5: PNG media_image1.png 198 130 media_image1.png Greyscale in the reply filed on 3-18-2026 is acknowledged. Claim Objections Claims 2-5, 7-8, 10, 13-16 and 18-19 are objected to because of the following informalities: Claim 2 is objected to because the claim should cite “wherein a substituent of the C1-C5 alkylene group is selected from the group consisting of one or more of a halogen-substituted C1-C120 alkyl group, …and a halogen-substituted or unsubstituted C2-C40 heteroaryl group”. Claim 3 is objected to because the claim should cite “wherein the substituent of the C1-C5 alkylene group is selected from the group consisting of one or more of halogen, …and pyridyl”. Claim 4 is objected to because the claim should cite “wherein R5 and R6 are each independently selected from the group consisting of a hydrogen atom, …and nitrogen-containing hydrocarbon group”. Claim 5 is objected to because the claim should cite “wherein R5 and R6 are independently selected from the group consisting of hydrogen atom, …and pyridyl”. Claim 7 is objected to because the claim should cite “further comprises one or more selected from the group consisting of 1.3-propane sultone, … and ethylene sulfate” because of the use of “and”. Claim 8 is objected to because the claim should cite “wherein the lithium salt a selected from the group consisting of one or more of LiPF6, …and LiN(SO2)F2 and … the cyclic carbonate is selected from the group consisting of one or more of ethylene carbonate, … and butylene carbonate, and the chain carbonate is selected from the group consisting of one or more of dimethyl carbonate, … and methyl propyl carbonate” because of the use of “selected from”. Claim 10 is objected to because the claim should cite “M is selected from the group consisting of one or more of Al, … and Fe” because of the use of “selected from”. Appropriate correction is required. Claim Rejections - 35 USC § 112 The following is a quotation of the first paragraph of 35 U.S.C. 112(a): · IN GENERAL.—The specification shall contain a written description of the invention, and of the manner and process of making and using it, in such full, clear, concise, and exact terms as to enable any person skilled in the art to which it pertains, or with which it is most nearly connected, to make and use the same, and shall set forth the best mode contemplated by the inventor or joint inventor of carrying out the invention. The following is a quotation of the first paragraph of pre-AIA 35 U.S.C. 112: The specification shall contain a written description of the invention, and of the manner and process of making and using it, in such full, clear, concise, and exact terms as to enable any person skilled in the art to which it pertains, or with which it is most nearly connected, to make and use the same, and shall set forth the best mode contemplated by the inventor of carrying out his invention. Claims 1, 6-11 and 17-19 are rejected under 35 U.S.C. 112(a) or 35 U.S.C. 112 (pre-AIA ), first paragraph, because the specification, while being enabling for R1, R2, R3 and R4 to be an unsubstituted C1-C5 alkylene group, does not reasonably provide enablement for R1, R2, R3 and R4 to be a substituted or unsubstituted C1-C5 hydrocarbylene group claimed in claim 1. The specification does not enable any person skilled in the art to which it pertains, or with which it is most nearly connected, to make or use the invention commensurate in scope with these claims. An alkylene group is a specific species to the broad hydrocarbylene group. An alkylene group refers to an alkene, which is an unsaturated hydrocarbon containing a double bond between two carbon atoms whereas hydrocarbylene refers to any divalent radical form by removing two hydrogen atoms from a hydrocarbon, which can include alkynes and other types of hydrocarbons. There are many factors to be considered when determining whether there is sufficient evidence to support a determination that a disclosure does not satisfy the enablement requirement and whether any necessary experimentation is "undue." These factors include, but are not limited to: The breadth of the claims [where R1, R2, R3 and R4 are a substituted or unsubstituted C1-C5 hydrocarbylene group in the spiro compound represented by Structural Formula 1]; The nature of the invention; The state of the prior art; The level of one of ordinary skill; The level of predictability in the art; The amount of direction provided by the inventor [where R1, R2, R3 and R4 are an unsubstituted C1-C5 alkylene group in the spiro compound represented by Structural Formula 1] ; The existence of working examples [where R1, R2, R3 and R4 are an unsubstituted C1-C5 alkylene group in the spiro compound represented by Structural Formula 1]; and The quantity of experimentation needed to make or use the invention based on the content of the disclosure. In re Wands, 858 F.2d 731, 737, 8 USPQ2d 1400, 1404 (Fed. Cir. 1988) The specification discloses sufficient information for one of ordinary skill in the art to use a spiro compound where R1, R2, R3 and R4 are an unsubstituted C1-C5 alkylene group represented by Structural Formula 1. However, the specification does not provide direction on how to use a spiro compound where R1, R2, R3 and R4 are a substituted or unsubstituted C1-C5 hydrocarbylene group represented by Structural Formula 1. Thus, the disclosed specification does not provide guidance and does not bear a reasonable correlation to the full scope of the claim. Taking these factors into account, undue experimentation would be required by one of ordinary skill in the art to practice the full scope of the claim(s). Claims 4-5, 11 and 15-16 are rejected under 35 U.S.C. 112(b) or 35 U.S.C. 112 (pre-AIA ), second paragraph, as being indefinite for failing to particularly point out and distinctly claim the subject matter which the inventor or a joint inventor (or for applications subject to pre-AIA 35 U.S.C. 112, the applicant), regards as the invention. Claim 4 is rejected because R1, R2, R3 and R4 are not defined in the claim. Claim 11 is objected to because unclear of the phrase “has an asymmetric structure” further limits claim 1 from which the claim depends from because the compound already contains an asymmetric structure. Allowable Subject Matter Claims 2-3 and 12-14 are objected to as being dependent upon a rejected base claim, but would be allowable if rewritten in independent form including all of the limitations of the base claim and any intervening claims. Conclusion The prior art made of record and not relied upon is considered pertinent to applicant's disclosure. Cha et al. (US 2016/0211550) teaches an electrolyte solution for a lithium battery comprising a lithium salt, an organic solvent and a disultone-based compound represented by Formula 1: PNG media_image2.png 90 161 media_image2.png Greyscale .Cha teaches a very similar compound but the bond O-S(=O)2-(A1)n1 does not teach the bond X-R2 of the instant invention. Any inquiry concerning this communication or earlier communications from the examiner should be directed to Laura Weiner whose telephone number is (571)272-1294. The examiner can normally be reached 9 am-5 pm EST M-F. 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, Tong Guo can be reached at 571-272-3066. 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. /LAURA S. WEINER/ Primary Examiner Art Unit 1723 /Laura Weiner/Primary Examiner, Art Unit 1723
Read full office action

Prosecution Timeline

Apr 27, 2023
Application Filed
May 05, 2026
Non-Final Rejection mailed — §112 (current)

Precedent Cases

Applications granted by this same examiner with similar technology

Patent 12683186
ALL-SOLID-STATE SECONDARY BATTERY
4y 2m to grant Granted Jul 14, 2026
Patent 12683166
Composite Particle Including Electrode Material and Electrode for Electrochemical Device Including the Same
1y 11m to grant Granted Jul 14, 2026
Patent 12665192
INTERMETALLIC ANODE MATERIALS FOR LITHIUM-ION BATTERIES
3y 8m to grant Granted Jun 23, 2026
Patent 12658423
RECHARGEABLE ZINC METAL BATTERY
3y 11m to grant Granted Jun 16, 2026
Patent 12651771
ELECTROLYTIC SOLUTION FOR LITHIUM SECONDARY BATTERIES AND LITHIUM SECONDARY BATTERY INCLUDING THE SAME
3y 7m to grant Granted Jun 09, 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

1-2
Expected OA Rounds
85%
Grant Probability
99%
With Interview (+14.3%)
3y 1m (~0m remaining)
Median Time to Grant
Low
PTA Risk
Based on 1155 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