Lithium Ion Cells

Indian Space Research Organisation at its Vikram Sarabhai Space Centre (VSSC) has developed cost effective battery technology. It is a green alternative to fossil fuels. The technology is available for 1.5Ah, 50 Ah and 100 Ah cells.

Salient Features


50 Ah

100 Ah

1.5 Ah

Nominal Voltage

3.6 V

Positive Electrode

Lithium Nickel Cobalt Aluminium Oxide

Negative Electrode


Cell Case and Lid

Aluminium alloy


Terminal Seal

Ceramic to Metal

Plastic Compression


Polymeric Separator


Lithium salt dissolved in organic solvents

Cell Dimensions in mm

130 x 123 x 50

(W x H x T) approx.

130 x 208 x 50

(W x H x T) approx.

18650 type

Cell Mass

~ 1.5 kg

~2.7 kg

40 g

Energy Density

=140 Wh/kg

Operating Temperature

10°C to 30°C

Cycle life

>1500 cycles at 80% DOD

Calendar life

>15 years


25 ‘g’ in sine mode, 17.25 ‘grms’ in random mode and Transportation 8 ‘g’

10 ‘g’ in Sine mode, 13.5 grms in Random

Leak rate

Less than 10-8 mbar L/s

Less than 10-5 mbar L/s

Safety features

Rupture disc and Shutdown separator

Shutdown separator, PTC, CID


Lithium ion cells find large societal applications in Electric Vehicle transport and communication areas.


ISRO is willing to offer the knowhow of this technology to suitable entrepreneurs / industries in India. Capable manufacturing industries interested in acquiring this knowhow may write with details of their present activities, requirements and plans for implementation, infrastructure and technical expertise available with them, their own market assessment, if any, and plans for diversification to the address given below:


Technology Transfer & Industrial Coordination Division (TT&IC)

Vikram Sarabhai Space Centre, ISRO PO

Thiruvananthapuram-695 022

E mail: This email address is being protected from spambots. You need JavaScript enabled to view it.

Ph: 0471-2564081

Fax: 0471-2564134

Ph: 0471-2564081/2565133/2565695

Fax: 0471-2564134 

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