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ANSI NEMA C18.3M Part 1-2024 American National Standard for Portable Lithium Primary Cells and Batteries-General and Specifications, 2024
- 1 General [Go to Page]
- 1.1 Scope and Purpose [Go to Page]
- 1.1.1 Scope
- 1.1.2 Purpose
- 1.2 Normative References
- 1.3 Definitions [Go to Page]
- 1.3.1 anode: Electrode at which an electrochemical oxidation reaction occurs.
- 1.3.2 application test: A test that simulates the actual use of a battery in a specific application.
- 1.3.3 battery: One or more cells, including case, terminals, and markings.
- 1.3.4 battery, coin: Small round lithium battery, in which the overall height is less than the diameter.
- 1.3.5 battery, portable: A battery that is easily carried.
- 1.3.6 battery, primary lithium: A battery that is not designed to be electrically recharged and has metallic lithium or lithium alloy as its anode.
- 1.3.7 battery, prismatic: A battery with non-round geometry.
- 1.3.8 capacity: Quantity of electricity, usually expressed in ampere-hours (Ah), that a battery can deliver under specified discharge conditions.
- 1.3.9 cathode: Electrode at which an electrochemical reduction reaction occurs.
- 1.3.10 cell: Basic functional unit providing a source of electrical energy by direct conversion of chemical energy. The cell consists of an assembly of electrodes, separators, electrolyte, container, and terminals.
- 1.3.11 cell, primary: A cell that is not designed to be electrically recharged.
- 1.3.12 cylindrical (cell or battery): Round cell or battery in which the overall height is equal to or greater than the diameter.
- 1.3.13 discharge: An operation during which a battery delivers power (current and voltage) to an external circuit by the conversion of chemical energy into electrical energy.
- 1.3.14 electrode: Conductive part, electrically connected to one terminal of a cell, forming an interface with the electrolyte and on which the electrode reaction occurs.
- 1.3.15 electrolyte: Medium containing mobile ions that render it ionically conductive.
- 1.3.16 leakage: The unplanned escape of electrolyte from a cell or battery.
- 1.3.17 minimum average duration: The required average value of service output under specified test conditions.
- 1.3.18 polarity: The electrical convention used to describe the direction in which current flows on discharge.
- 1.3.19 rating test: A discharge test used to measure the service output of a battery.
- 1.3.20 service output: Energy output of a cell or battery under specified conditions of discharge. It may be expressed as duration, the number of pulses, ampere-hours, or watt-hours.
- 1.3.21 small cell or battery: A cell or battery fitting entirely within the limits of the ingestion gauge as defined in Figure 1.
- 1.3.22 terminals: Accessible conductive parts provided for the connection of an external circuit to the positive (+) and negative (-) electrodes of the cell or battery.
- 1.3.23 voltage, closed-circuit (CCV): The voltage of a battery when an external current is flowing.
- 1.3.24 voltage, endpoint: Specified voltage of a battery, when supplying power, at which the discharge is terminated.
- 1.3.25 voltage, nominal: Suitable approximate value used to designate or identify the voltage of a cell, battery, or electrochemical system.
- 1.3.26 voltage, open circuit (OCV): The voltage of a battery when no external current is flowing.
- 1.4 Requirements [Go to Page]
- 1.4.1 Designations, Chemical Systems, and Voltages
- 1.4.2 Battery Dimensions [Go to Page]
- 1.4.2.1 Dimension Symbols
- 1.4.2.2 Dimension Definitions [Go to Page]
- 1.4.2.2.1 Datum
- 1.4.2.2.2 Datum Feature
- 1.4.2.2.3 Datum Feature Symbol
- 1.4.2.2.4 Maximum Material Condition
- 1.4.2.2.5 Positional Tolerance
- 1.4.2.2.6 True Position
- 1.4.2.3 Positional Tolerancing of the Positive Terminal
- 1.4.3 Terminals
- 1.4.4 General Design Considerations [Go to Page]
- 1.4.4.1 Dimensional Stability
- 1.4.4.2 Leakage
- 1.4.5 Requirements [Go to Page]
- 1.4.5.1 Test Conditions
- 1.4.5.2 Discharge Load
- 1.4.5.3 Time Periods
- 1.4.5.4 Determination of Service Output
- 1.4.5.5 Voltage Measurement
- 1.4.5.6 Leakage and Deformation Determination
- 1.4.5.7 Methods of Determining Discharge Test Conditions
- 1.4.5.8 Procedures to Check Conformance to a Specified Minimum Average Duration
- 1.4.6 Marking [Go to Page]
- 1.4.6.1 General
- 1.4.6.2 Lithium Coin Batteries 16 mm in Diameter and Larger Intended for Direct Consumer Sale
- 2 Specifications [Go to Page]
- 2.1 Specification Sheet Reference
- 2.2 Battery Specification Sheets
- Specification
- BatterySpecification [Go to Page]
- 24LF
- BatterySpecification
- BatterySpecification
- BatterySpecification
- BatterySpecification
- BatterySpecification
- BatterySpecification
- BatterySpecification
- Battery
- Specification
- Battery
- Specification
- Battery
- Specification
- Annex A Methods of Determining Load and Test Conditions (Informative)
- Annex B Guidance for Packing, Transportation and Handling, Storage, and Disposal (Informative)
- Annex C Reliability Guidelines (Informative) [Go to Page]
- C.1 Consumer/User
- C.2 Designer
- Annex D Compliance Checklist (Informative)
- Annex E Bibliography (Informative) [Go to Page]
