GB/T 44265-2024 Electrical energy storage power station - Technical specifications for sodium ion battery
1 Scope
This document specifies the requirements for appearance, dimensions and mass, electrical performance, environmental adaptability, durability performance, and safety of sodium ion batteries for electrical energy storage (hereinafter referred to as "sodium ion battery"), describes the corresponding test methods, and specifies the coding, general requirements, normal operating environment, inspection rules, marking, packaging, transportation, and storage.
This document is applicable to the design, manufacture, testing, inspection, operation, maintenance, and repair of sodium ion batteries for electrical energy storage.
2 Normative references
The following normative documents contain provisions which, through reference in this text, constitute provisions of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.
GB/T 191 Graphical symbols marking for handling and storage of packages
GB/T 2828.1 Sampling procedures for inspection by attributes - Part 1: Sampling schemes indexed by acceptance quality limit (AQL) for lot-by-lot inspection
GB/T 4857
(All parts) Packaging - Basic tests for transport packages
GB/T 5398 Test methods for large transport packages
GB/T 16471 Dimensional and weight constraints for transport package
GB/T 44026 Technical specification for prefabricated cabin type lithium ion battery energy storage system
DL/T 2528 Basic terminology of electrical energy storage
3 Terms, definitions and symbols
3.1 Terms and definitions
For the purposes of this document, the terms and definitions given in DL/T 2528, GB/T 44026 and the following apply.
3.1.1
rated power charging-discharging cycles
guaranteed number of cycles when the charge/discharge energy of the battery decays to the rated charge/discharge energy during cyclic charging and discharging at rated power, under specified conditions
3.1.2
nominal voltage of battery
voltage value used to designate or identify a battery
3.1.3
initialized charging
process of discharging the battery to the discharge cut-off condition, followed by charging to the charge cut-off condition, under specified conditions
3.1.4
initialized discharging
process of charging the battery to the charge cut-off condition, followed by discharging to the discharge cut-off condition, under specified conditions
3.1.5
rate charging and discharging
under specified conditions, the process of charging and discharging the battery at a power value higher than the rated power
3.1.6
shell
enclosure component used to prevent direct contact between the internal materials and components of the battery cell and the outside
3.1.7
fire
phenomenon of sustained combustion occurring in any part of the battery
Note: Fire does not include sparks, flash fires, or arcing phenomena.
3.1.8
explosion
phenomenon where the shell of a cell or the enclosure of a battery module ruptures, accompanied by sound and the ejection of major components such as solid materials
3.1.9
liquid leakage
phenomenon where internal liquid from the battery leaks to the outside of the shell
3.1.10
adiabatic temperature rise
phenomenon where the surface temperature of a battery cell increases due to heat generated internally or absorbed externally under adiabatic environmental conditions
3.2 Symbols
For the purposes of this document, the following symbols apply.
Eic: initial charge energy.
Eid: initial discharge energy.
Erc: rated charge energy.
Erd: rated discharge energy.
Prc: rated charge power.
Prd: rated discharge power.
t: nominal charge time.
t': nominal discharge time.
Unom: nominal voltage.
wvd: volumetric energy density.
wgd: gravimetric energy density.
4 Coding
The coding rules for sodium ion batteries for electrical energy storage are shown in Figure 1.
Key:
1—"EES" represents electrical energy storage.
2—"SIB" represents sodium ion battery.
3—A1 represents anode material, including: transition metal oxides (TMO), polyanionic type (POM), Prussian blue analogues (HCF), organic (ORG), others (X); A2 represents cathode material, including: amorphous carbon (AC), alloy materials (AM), organic (ORG), and others (X).
4—A3 represents electrolyte type, including: liquid (L), solid (S), and solid-liquid hybrid (SL).
5—A4 represents shell type, applicable only to battery cells, not applicable to battery modules, clusters, or DC compartments, including: hard square (HS), hard cylindrical (HC), soft pouch (SP), and others (X).
6—Level represents the battery level, including: battery cell (Cell), battery module (Module), battery cluster (Cluster), and DC compartment (DC).
7—Unom represents nominal voltage, consisting of numerical value and unit.
8—Prc represents rated charge power, consisting of numerical value and unit.
9—Prd represents rated discharge power, consisting of numerical value and unit.
10—Erc represents rated charge energy, consisting of numerical value and unit.
11—Erd represents rated discharge energy, consisting of numerical value and unit.
12—A5 represents battery cooling mode, applicable only to battery modules, clusters, and DC compartments, not applicable to cells, including: air cooling (AC), liquid cooling (LC), air-liquid combination (ALC), and others (X).
13—A6 represents the battery model, consisting of 4 to 15 digits of letters, numbers, or symbols.
Figure 1 Coding rules for sodium ion batteries for electrical energy storage
Example 1:
For a sodium ion battery for electrical energy storage, a hard square cell with transition metal oxide anode material, amorphous carbon cathode material, liquid electrolyte, nominal voltage 3.5V, rated charge power 80W, rated discharge power 160W, rated charge energy 320Wh, rated discharge energy 300Wh, model A1B2C3, the code is: EES‑SIB‑TMO/AC‑L‑HS‑Cell_3.5V‑80W‑160W‑320Wh‑300Wh‑A1B2C3.
Example 2:
For a sodium ion battery for electrical energy storage, an air-cooled battery module composed of hard cylindrical cells with polyanionic anode material, alloy cathode material, solid electrolyte, nominal voltage 48V, rated charge power 1.5kW, rated discharge power 3kW, rated charge energy 6kWh, rated discharge energy 5.8kWh, model D1E2F3, the code is: EES‑SIB‑POM/AM‑S‑Module_48V‑1.5kW‑3kW‑6kWh‑5.8kWh‑AC‑D1E2F3.
Example 3:
For a sodium ion battery for electrical energy storage, a liquid-cooled battery cluster composed of soft pouch cells with manganese-based Prussian blue anode material, amorphous carbon cathode material, solid-liquid hybrid electrolyte, nominal voltage 650V, rated charge power 250kW, rated discharge power 500kW, rated charge energy 1,000kWh, rated discharge energy 950kWh, model G1H2I3, the code is: EES‑SIB‑HCF/AC‑SL‑Cluster_650V‑250kW‑500kW‑1000kWh‑950kWh‑LC‑G1H2I3.
Example 4:
For a sodium ion battery for electrical energy storage, an air-cooled DC compartment composed of hard cylindrical cells with metal oxide anode material, alloy cathode material, solid electrolyte, nominal voltage 1,000V, rated charge power 500kW, rated discharge power 1,000kW, rated charge energy 1,000kWh, rated discharge energy 1,000kWh, model J1K2L3, the code is: EES‑SIB‑TMO/AM‑S‑DC_1000V‑500kW‑1000kW‑1000kWh‑1000kWh‑AC‑J1K2L3.
5 Technical requirements
5.1 General requirements
A battery module shall consist of battery cells with the same code that meet the type test requirements of this document. A battery cluster shall consist of battery modules with the same code that meet the type test requirements of this document. A DC compartment shall consist of battery clusters with the same code that meet the type test requirements of this document.
5.2 Normal operating environment
The normal operating environment shall meet the following requirements.
a)Temperature for battery cells, modules, clusters: 5℃ to 45℃.
b)No condensation on live parts.
Contents
Foreword i
1 Scope
2 Normative references
3 Terms, definitions and symbols
4 Coding
5 Technical requirements
6 Test methods
7 Inspection rules
8 Marking, packaging, transportation and storage
Annex A (Informative) Specification parameters of battery
Annex B (Normative) Operating parameters of battery
