# US 2026/0100596 A1 · Battery protection circuit module to which authentication circuit unit is applied and method of protecting authentication circuit unit using the same > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2026/0100596 A1 - Document ID: US20260100596A1 - Status: Published application - Kind: A1 - Application number: 19/349,004 - Filed: 2025-10-03 - Published: 2026-04-09 - Earliest claimed: 2024-10-08 - Assignees: Samsung SDI Co., Ltd. - Applicants: Samsung SDI Co., Ltd. - Inventors: Seokryun Park - Web page: https://patentgrep.com/patent/US20260100596A1 ## CPC - H02J 7/60: including safety or protection arrangements - H01M 50/574: Devices or arrangements for the interruption of current - H02J 7/40: characterised by the exchange of charge or discharge related data - H02J 7/47: Arrangements for checking compatibility or authentication between one component, e.g. a battery or a battery charger, and another component, e.g. a power source - H02J: ELECTRIC POWER NETWORKS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY - H01M: PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY ## Abstract The present disclosure relates to a battery protection circuit module to which an authentication circuit unit is applied and a method of protecting an authentication circuit unit using the same, and more particularly, to a battery protection circuit module including a part arrangement design that is robust against external environment noise and a method of protecting an authentication circuit unit using the same. A battery protection circuit module to which an authentication circuit unit is applied may include an authentication circuit unit connected to an output stage of the battery protection circuit module and a protection device configured to protect the authentication circuit unit against external noise. ## Claims ### Claim 1 A battery protection circuit module to which an authentication circuit unit is applied, the battery protection circuit module comprising: an authentication circuit unit connected to an output stage of the battery protection circuit module; and a protection device configured to protect the authentication circuit unit against external noise. ### Claim 2 (depends on 1) The battery protection circuit module as claimed in claim 1, wherein the protection device is connected to a terminal of the authentication circuit unit and is differently disposed. ### Claim 3 (depends on 2) The battery protection circuit module as claimed in claim 2, wherein the protection device comprises a first resistor disposed to have a resistance value within a predetermined range at a first preset node of the authentication circuit unit. ### Claim 4 (depends on 2) The battery protection circuit module as claimed in claim 2, wherein the protection device comprises a first capacitor disposed to have a capacitance value within a predetermined range at a second preset node of the authentication circuit unit. ### Claim 5 (depends on 2) The battery protection circuit module as claimed in claim 2, wherein the protection device comprises a second capacitor disposed to have a capacitance value within a predetermined range at a first preset node of the authentication circuit unit. ### Claim 6 (depends on 2) The battery protection circuit module as claimed in claim 2, wherein the protection device comprises a third capacitor disposed to have a capacitance value within a predetermined range at a second preset node of the authentication circuit unit. ### Claim 7 (depends on 1) The battery protection circuit module as claimed in claim 1, wherein a protection device comprising a bidirectional diode is disposed in an output stage of the authentication circuit unit. ### Claim 8 A battery protection circuit module to which an authentication circuit unit is applied, the battery protection circuit module comprising: an authentication circuit unit that is connected to an output stage of the battery protection circuit module and into which authentication circuit product characteristics of a plurality of manufacturers have been incorporated; and a protection device configured to protect the authentication circuit unit against external noise. ### Claim 9 (depends on 8) The battery protection circuit module as claimed in claim 8, wherein the protection device is disposed through pin-to-pin arrangement and protects the authentication circuit unit. ### Claim 10 (depends on 9) The battery protection circuit module as claimed in claim 9, wherein: the authentication circuit unit comprises an authentication circuit of a first manufacturer and an authentication circuit of a third manufacturer, and the authentication circuit unit is driven and executed by recognizing a set resistance value. ### Claim 11 (depends on 10) The battery protection circuit module as claimed in claim 10, wherein the protection device comprises a resistor disposed in each output unit for each of the first manufacturer and the third manufacturer. ### Claim 12 (depends on 11) The battery protection circuit module as claimed in claim 11, wherein in a case of the third manufacturer, a resistor connected to the authentication circuit of the first manufacturer is not mounted, a resistor connected to the authentication circuit of the third manufacturer is mounted, and the authentication circuit unit is driven by recognizing a resistance value of the resistor connected to the output stage and recognizes a pull-up of the resistor through an output terminal of the third manufacturer. ### Claim 13 (depends on 11) The battery protection circuit module as claimed in claim 11, wherein the authentication circuit unit is driven by recognizing a resistance value of the resistor connected to the output stage and recognizes a pull-down of the resistor through an output terminal of the first manufacturer. ### Claim 14 A method of protecting an authentication circuit unit, the method comprising steps of: (a) designing a protection device for an authentication circuit unit included in the battery protection circuit module; (b) disposing the protection device; and (c) performing an application of external noise and protection-related verification for the authentication circuit unit. ### Claim 15 (depends on 14) The method as claimed in claim 14, wherein the step (a) comprises designing specifications of the protection device that protect the authentication circuit unit connected to an output stage of the battery protection circuit module against external noise. ### Claim 16 (depends on 15) The method as claimed in claim 15, wherein the step (a) comprises designing a first resistor that is connected to a first preset node of the authentication circuit unit and that has a resistance value within a preset range and a first capacitor that is disposed at a second preset node of the authentication circuit unit and that has a capacitance value within a preset range. ### Claim 17 (depends on 15) The method as claimed in claim 15, wherein the step (a) comprises designing a second capacitor that is connected to a first preset node of the authentication circuit unit and that has a capacitance value within a preset range and a third capacitor that is connected to a second preset node of the authentication circuit unit and that has a capacitance value within a preset range. ### Claim 18 (depends on 14) The method as claimed in claim 14, wherein the step (b) comprises disposing the protection device by determining whether a resistor disposed in an output unit of an authentication circuit for each manufacturer has been mounted or has not been mounted. ### Claim 19 (depends on 18) The method as claimed in claim 18, wherein the step (b) comprises recognizing a pull-up or pull-down of the resistor depending on whether the resistor disposed in the output unit for each manufacturer has been mounted or has not been mounted. ### Claim 20 (depends on 14) The method as claimed in claim 14, wherein the step (c) comprises performing verification on at least one of ESD, an overvoltage, an inverse voltage, a surge voltage, and confirmation of ROM information of the authentication circuit unit after a radiation of X-ray.