India India adds lithium-ion traction battery packs for electrically propelled road vehicles as a voluntary product under Standards & Labeling Programme

India adds lithium-ion traction battery packs for electrically propelled road vehicles as a voluntary product under Standards & Labeling Programme

In March 2022, India’s Bureau of Energy Efficiency (BEE) added high-energy lithium-ion traction battery packs and systems as a voluntary product of the energy saving labeling system “Standards & Labeling Programme.” The target is high-energy lithium-ion battery packs/modules for electrically propelled road vehicles with a specific energy of 350 Wh/kg and a cycle life of up to 4,000 cycles. The energy saving assessment is basically based on the specific energy, lifecycle, and energy efficiency (covering areas such as energy efficiency during rapid charging, power, and internal resistance) tested according to ISO12405-4: 2018.

The specifications of high-energy lithium-ion traction battery packs and systems (Schedule 29) can be found at the following URL:
https://www.beestarlabel.com/Content/Files/SCHEDULE_29.pdf

 

The system classifies high energy battery packs and systems into the following basic matrix groups (BMGs) based on specific energy and cycle life.

Cycle life

Specific energy (Wh/kg)

A

B C D

E

≥ 100

≥ 150 ≥ 200 ≥ 275

≥ 350

1

1000 to 1499

BMG A1

BMG B1 BMG C1

BMG D1

BMG E1

2

1500 to 1999

BMG A2

BMG B2 BMG C2 BMG D2

BMG E2

3

2000 to 3999

BMG A3

BMG B3

BMG C3 BMG D3

BMG E3

4 4000 or higher BMG A4 BMG B4 BMG C4 BMG D4

BMG E4

BMG battery packs or systems must be evaluated based on the energy efficiency tested (η) and each family of parent cells (maximum capacity: Ah) must be subjected to a complete cycle life testing. A family of battery packs refers to battery packs and systems that belong to the same BMG category and have the same BMS model type and cell type (e.g., square cells, cylindrical cells, etc.). However, the capacity (Ah) and model number of the battery pack or system may vary within the family.

 

The energy saving assessment is divided into five levels based on the following criteria.

Star assessment

Energy efficiency of the entire battery pack (%)

Lowest

Highest

1 star

85

88

2 stars

>88

91

3 stars

>91 95
4 stars >95

98

5 stars

>98

 

Sample energy saving label:

Reference:
ISO 12405-4: 2018 “Electrically propelled road vehicles —Test specification for lithium-ion traction battery packs and systems — Part 4: Performance testing”
https://www.iso.org/standard/71407.html