Bottom Lid Of A Cylindrical Battery

Abstract: BOTTOM LID OF A CYLINDRICAL BATTERY An electrochemical cell (100) comprises a cylindrical can (122) with a closed end (122a) and an open end (122b). Inside the can (122), a jelly roll (114) is positioned, comprising a positive electrode, a negative electrode, and a separator wound together. The bottom lid (116) is placed at the open end (122b) of the can (122), and an upper terminal (102) is located at the closed end (122a). The bottom lid (116) has a stepped edge portion (124) that exerts an upward force on the jelly roll (114), pushing it towards the upper terminal (102). This configuration enhances the secure electrical contact between the jelly roll (114) and the upper terminal (102), ensuring stable performance by maintaining component alignment within the cylindrical can (122) (See FIGS. 3 and 4).

Patent Information

Application #

Filing Date

01 October 2024

Publication Number

41/2025

Publication Type

INA

Invention Field

ELECTRICAL

Status

Email

Parent Application

Applicants

OLA ELECTRIC MOBILITY LIMITED

Regent Insignia, #414, 3rd Floor, 4th Block, 17th Main, 100 Feet Road, Koramangala, Bangalore - 560034, Karnataka, India

Inventors

1. Rajkumar Karthikeyan

OLA Battery Innovation Centre (BIC), Sy. No. 39P, 41P, 42P, Salarpuria Infozone, Doddathogur Village, Electronic City Phase-I, Opposite to Velankani Drive 6th Gate, Bengaluru, Karnataka - 560100, India

2. Mohammed Nazar

OLA Battery Innovation Centre (BIC), Sy. No. 39P, 41P, 42P, Salarpuria Infozone, Doddathogur Village, Electronic City Phase-I, Opposite to Velankani Drive 6th Gate, Bengaluru, Karnataka - 560100, India

3. Nirmal T

OLA Battery Innovation Centre (BIC), Sy. No. 39P, 41P, 42P, Salarpuria Infozone, Doddathogur Village, Electronic City Phase-I, Opposite to Velankani Drive 6th Gate, Bengaluru, Karnataka - 560100, India

Specification

DESC:Attached ,CLAIMS:Attached

Documents

Application Documents

#	Name	Date
1	202441074381-STATEMENT OF UNDERTAKING (FORM 3) [01-10-2024(online)].pdf	2024-10-01
2	202441074381-PROVISIONAL SPECIFICATION [01-10-2024(online)].pdf	2024-10-01
3	202441074381-POWER OF AUTHORITY [01-10-2024(online)].pdf	2024-10-01
4	202441074381-FORM 1 [01-10-2024(online)].pdf	2024-10-01
5	202441074381-DRAWINGS [01-10-2024(online)].pdf	2024-10-01
6	202441074381-FORM-9 [01-10-2025(online)].pdf	2025-10-01
7	202441074381-FORM 18 [01-10-2025(online)].pdf	2025-10-01
8	202441074381-DRAWING [01-10-2025(online)].pdf	2025-10-01
9	202441074381-CORRESPONDENCE-OTHERS [01-10-2025(online)].pdf	2025-10-01
10	202441074381-COMPLETE SPECIFICATION [01-10-2025(online)].pdf	2025-10-01
11	202441074381-Request Letter-Correspondence [13-10-2025(online)].pdf	2025-10-13
12	202441074381-Form 1 (Submitted on date of filing) [13-10-2025(online)].pdf	2025-10-13
13	202441074381-Covering Letter [13-10-2025(online)].pdf	2025-10-13