Report 102111500LHD-001 Page 2 of 21 - Sencon · 2021. 2. 19. · 4 battery assemblies at 100% charge and 4 battery assemblies at 0% charge. The test samples were pre-prepared by

Report 102111500LHD-001 Page 2 of 21

Table of Contents

SUMMARY ........................................................................................................................................ 4

1.0 INTRODUCTION ........................................................................................................................ 5 2.0 TEST PROGRAMME ................................................................................................................. 6 3.0 TEST ACCEPTANCE CRITERIA ............................................................................................... 6

4.0 TEST PROCEDURES AND RESULTS ..................................................................................... 8

4.1 ALTITUDE SIMULATION TEST (T.1) ............................................................................... 8 4.2 THERMAL CYCLE TEST (T.2) ......................................................................................... 8 4.3 VIBRATION TEST (T.3).................................................................................................... 9 4.4 SHOCK TEST (T.4) ........................................................................................................ 11 4.5 SUMMARY OF RESULTS (TESTS T.1 TO T.4) ................................................................ 13

4.6 EXTERNAL SHORT CIRCUIT TEST (T.5) ............................................................................. 14

5.0 CONCLUSIONS ...................................................................................................................... 17

6.0 Calibrated Test Equipment ..................................................................................................... 18

List of Tables

Table 1: Critical Mass and Voltage Loss Limits ................................................................ 7 Table 2: Test Results for the Test Sequence T.1 to T.4 .................................................. 13 Table 3: Initial and Final Measurements for Test Sequence T.1 to T.4 ........................... 14 Table 4: T.5: Maximum Recorded Temperatures. .......................................................... 15 Table 5: Calibrated Test Equipment ............................................................................... 18

List of Figures

Figure 1: Photograph - Steatite Battery Assembly Model BS01P4MD07 .......................... 5 Figure 2: Chamber Pressure Log for test T.1 (Altitude Simulation) ................................... 8 Figure 3: Chamber Temperature Log for UN Test T.2 (Thermal Cycle) ............................ 9 Figure 4: Clamping Arrangement for Batteries on the Vibration Platform (Axis 1

Vertical)…………………………………………………………………………….......10 Figure 5: Clamping Arrangement for Batteries on the Vibration Platform Axes 2 and 3

(Longitudinal and Side to Side)……………………………………………………...10 Figure 6: Typical Control Channel Profile for Test T.3 (Vibration)……………………….....11 Figure 7: Clamping Arrangement for Batteries on the Shock Machine Platform

(Vertical Positions 1 and 2) .............................................................................. 12 Figure 8: Clamping Arrangement for Batteries on the Shock Machine Platform

(Lateral Positions 3 to 6) .................................................................................. 12 Figure 9: Typical Shock Pulse Profile 150g / 6ms for Battery Assemblies.

(Y axis 1 div = 500mV = 50g, X axis 1 div = 1.0ms) ......................................... 13 Figure 10: Temperature Logs for T.5 (External Short Circuit Test)

Battery Serial No’s C1 to C4 ............................................................................ 15 Figure 11: Temperature Logs for T.5 (External Short Circuit Test)

Battery Serial No’s D1 to D4 ............................................................................ 16


Appendices

Appendix 1: Tadiran Component Cell Technical Data Sheet - Lithium Thionyl Chloride SL-550 ½ AA Size,………………… ………………………………………....19

Appendix 2: UN 38.3 Transport Certificate of Test for Tadiran Model SL550 ½ AA size Lithium Thionyl Chloride cell……………………………………..20

Appendix 3: Drawing No. 6913936 Issue G Steatite Battery Model No. BS01P4MD07…………..............................................................................21


SUMMARY

This report describes the test evaluation carried out on a total of eight 7.2V / 0.8 Ah

Steatite Model BS01P4MD07 (Sencon Model No. SL2061) primary lithium multi-cell

battery assemblies which were manufactured by Steatite Ltd to Assembly Drawing

Number 6913936 Issue G.

The test programme was carried out in accordance with the requirements of the

United Nations Recommendations for the Transport of Dangerous Goods Para 38.3

(Lithium Batteries) of the Manual of Tests and Criteria.

(Reference publication ST/SG/AC.10/11/Rev.5 + Amendment 2:2013).

The tests carried out were as specified for primary lithium battery assemblies In Para

38.3 of the Manual of Tests and Criteria. (Reference Tests T.1 to T.5).

The results of the test programme were as follows;

UN Test Definition Test Description Test Result

T.1 Altitude Simulation NL ,NV, ND, NR, NF - PASS

T.2 Thermal Cycling NL ,NV, ND, NR, NF - PASS

T.3 Vibration NL ,NV, ND, NR, NF - PASS

T.4 Shock NL ,NV, ND, NR, NF - PASS

T.5 External Short Circuit ND, NR, NF, T= <170ºC - PASS

NL = No Leakage, NV = No Venting, ND = No Disassembly, NR = No Rupture,

NF = No Fire, T = Temperature.

A ’pass’ was obtained for each test because any subsequent change in mass, voltage

or temperature was always within prescribed limits, and no leakage, venting,

disassembly, rupture or fire occurred.

The UN Transport Certificate obtained from Steatite Ltd and reproduced in Appendix 2

gives confirmation that the Tadiran SL500 ½ AA primary component cell as fitted to

the Model BS01P4MD07 battery assembly has been tested on the UN Transportation

tests for primary cells.

Accordingly, the 7.2V / 0.8 Ah Steatite Model BS01P4MD07 (Sencon Model No.

SL2061) multi-cell lithium battery assembly manufactured to Steatite Drawing No.

6913936 Issue G satisfied the acceptance criteria for transportation as Class 9 goods

as defined by the UN Model Regulations.


1.0 INTRODUCTION Steatite Ltd design and manufacture bespoke lithium battery assemblies for a range of

industries including Oil and Gas exploration, Military and Oceanographic. Their

lithium battery packs need to be supplied to various sites worldwide, usually by a

combination of air, sea and road transportation. To facilitate ease of transportation

Steatite Ltd wish to have an independent verification of the conformity of their battery

designs to the requirements of the United Nations Recommendations for the

‘Transport of Dangerous Goods’ as specified in the ‘Manual of Tests and Criteria’.

The current manual is the 5th revised edition published by the UN in 2013 and

designated ST/SG/AC.10/11/Rev.5 + Amendment 2.

This report describes the verification carried out by Intertek on samples of the

following primary lithium multi-cell battery pack manufactured by Steatite for Sencon

and designated:

Steatite Model No. BS01P4MD07 Primary Lithium Battery Assembly.

(Drawing No. 6913936 Issue G)

Sencon Model No. SL2061

The BS01P4MD07 battery assembly comprises of 2 Tadiran primary lithium

3.6V / 0.8Ah Type SL-550 size ½ AA Lithium Thionyl Chloride cells. The cells are

configured electrically in a series arrangement to provide an output rating of

7.2V / 0.8Ah. The nominal dimensions of the battery pack assembly are 31 mm (wide)

x 28mm (long) x 16mm (deep) excluding leads and the assembly has a nominal mass

of 21 grammes. See Photograph Figure 1 below and the battery assembly drawing

which is reproduced in Appendix 3 for information purposes.

Figure 1: Photograph - Steatite Battery Assembly Model BS01P4MD07






The test programme was carried out at Intertek’s Environmental & Energy Storage

Test laboratories in Leatherhead, UK between the 21st July and 7th August 2015.

2.0 TEST PROGRAMME The test sequence described in section 38.3 on the UN Manual of Tests and Criteria

for Primary Lithium battery packs consists of 5 individual test procedures, numbers

T.1 to T.5. That is:

1. T.1: Altitude Simulation 2. T.2: Thermal Test 3. T.3: Vibration Test 4. T.4: Mechanical Shock 5. T.5: External Short Circuit For tests T.1 to T.5 test batteries in the following condition are required: 4 battery assemblies at 100% charge and 4 battery assemblies at 0% charge.

The test samples were pre-prepared by Steatite Ltd and supplied directly to Intertek.

The UN Manual (ST/SG/AC.10/11/Rev.5 + Amendment 2:2013) should be consulted

for full details of each test procedure and the desired results for compliance with the

UN standard.

3.0 TEST ACCEPTANCE CRITERIA The outcome of each of the 5 test procedures and the conformity with the

requirements specified in the UN manual is described below.

The requirement following procedures T.1 to T.4 is that there is;

1. No mass loss greater than 0.1% for any cell or battery pack over 5.0 grams

2. In the case of the 100% charged samples, the final open circuit voltage (OCV)

at the end of each test shall not be less than 90% of its initial OCV.

3. No leakage

4. No venting

5. No disassembly

6. No rupture

7. No fire


Accordingly, the critical mass and voltage loss limits for Steatite battery BS01P4MD07

are those shown in Table 1.

Battery Type (Drawing No.)

Nominal Weight

(g)

**Mass Loss Limit (%)

Nominal OCV (Vdc)

Voltage Loss Limit

BS01P4MD07 Sencon

Model No SL2061 (Steatite Drawing No.

6913936 Issue G)

21.0

0.1%

(0.021g nominal)

7.2V

90% of value immediately prior to each

test procedure *

Table 1: Critical Mass and Voltage Loss Limits

* Voltage loss limit not applicable to discharged batteries

** Mass loss (%) = (M1 - M2) x100, (where M1 = Pre test mass and M2 = Post test mass) M1

The requirement following procedure T.5 is that there is;

1. The external temperature of the battery pack does not exceed 170°C.

2. No disassembly, no rupture and no fire during or within 6 hours of the test.


4.0 TEST PROCEDURES AND RESULTS

4.1 ALTITUDE SIMULATION TEST (T.1) This test simulates air transport under low-pressure conditions.

The test batteries were stored at a pressure of less than 11.6kPa (116mbar) for at

least 6 hours at ambient temperature (20°C ± 5 °C). Figure 2 shows the Altitude

Chamber Pressure log for the test.

T.1 (Altitude Simulation Test) Chamber Pressure Log

Steatite Model No. BS01P4MD07 Primary Battery Assembly

0

200

400

600

800

1000

1200

0 1 2 3 4 5 6 7 8 9 10

Time (hrs)

Pre

ssu

re (

mb

ar)

Figure 2: Chamber Pressure Log for test T.1 (Altitude Simulation)

4.1.1 Test Result (T.1) PASS - There was no mass loss, leakage, venting, disassembly, rupture or fire and

the OCV of the charged batteries was not less than 90% of its voltage immediately

prior to the procedure.

4.2 THERMAL CYCLE TEST (T.2) This test assesses cell and battery seal integrity and internal electrical connections. The test is conducted using rapid and extreme temperature changes. The samples were stored for 6 hours at a temperature equal to 72ºC ± 2ºC, followed

by storage for 6 hours at a test temperature equal to -40ºC ± 2ºC. The maximum time

interval between test temperatures was 30 minutes. This procedure was repeated 10

times. Following the final cycle, the batteries were stored at an ambient temperature

(20ºC ± 5 °C) for at least 24 hours.

The chart over page (Figure 3) shows a log of the chamber temperature for the test.


T.2 (Thermal Cycle Test) Chamber Temperature Log

Steatite Model No. BS01P4MD07 Primary Battery Assembly

-60

-40

-20

0

20

40

60

80

100

0 1000 2000 3000 4000 5000 6000 7000 8000

Time (mins)

Te

mp

era

ture

(oC

)

Figure 3: Chamber Temperature Log for UN Test T.2 (Thermal Cycle)

4.2.1 Test Result (T.2) Pass - There was no mass loss, leakage, venting, disassembly, rupture or fire and

the OCV of the charged batteries was not less than 90% of its voltage immediately

prior to the procedure.

4.3 VIBRATION TEST (T.3) This test simulates vibration during transport.

The test batteries were secured to the platform of the vibration table without distorting

the batteries in such a manner as to allow them to transmit vibration. The vibration

was a sinusoidal waveform with a logarithmic sweep between 7 Hz and 200 Hz and

back to 7 Hz traversed in 15 minutes. The cycle repeated 12 times for a total of 3

hours for each of three mutually perpendicular mounting positions of the batteries.

One of the directions of vibration was perpendicular to the terminal face.

Figure 4 and 5 shows a typical clamping arrangement of batteries on the vibration

machine platform and a typical control channel sine profile is shown in Figure 6.


Figure 4: Test T.3 Clamping Arrangement for Batteries on the Vibration Platform Axis 1 (Vertical)

Figure 5: Test T.3 Clamping Arrangement for Batteries on the Vibration Platform

Axes 2 and 3 (Longitudinal and Side to Side)


Figure 6: Typical Control Channel Profile for Test T.3 (Vibration)

4.3.1 Test Result (T.3) Pass - There was no mass loss, leakage, venting, disassembly, rupture or fire and the

OCV of the charged batteries was not less than 90% of its voltage immediately prior to

the procedure.

4.4 SHOCK TEST (T.4) This test simulates possible impact during transport. Test batteries were secured to the testing machine by means of a rigid mount which

supported all mounting surfaces of each battery. Each battery was subjected to 3 half

sine-shocks of peak acceleration of 150g and pulse duration of 6ms, in the positive

direction followed by 3 shocks in the negative direction for each of the 3 mutually

perpendicular axes, that is for an overall total of 18 shocks.

Figures 7 and 8 show typical clamping arrangements for the batteries on the shock

machine platform and Figure 9 shows a typical 150g / 6 milliseconds half sine shock

pulse profile for the test.


Figure 7: Clamping Arrangement for Batteries on the Shock Machine Platform

(Vertical Positions 1 and 2)

Figure 8: Clamping Arrangement for Batteries on the Shock Machine Platform

(Lateral Positions 3 to 6)


Figure 9: Typical Recorded Pulse Profile 150g / 6ms for T.4 Shock Test

(Y axis 1 div = 500mV = 50g, X axis 1 div = 1.0ms)

4.4.1 Test Result (T.4) Pass - There was no mass loss, leakage, venting, disassembly, rupture or fire, and

measurement of the OCV’s of the batteries indicated no voltage loss outside the

acceptance limit for the tests

4.5 SUMMARY OF RESULTS (Tests T.1 to T.4) A summary of results for tests T.1 to T.4 are given in Table 2 and voltages and

weights of each battery pack were measured prior to and on completion of the test

sequence (T.1 – T.4) and are given in Table 3.

Intermediate measurements taken after tests T.1 to T.3 are not shown but also fell

within the acceptable limits for tests.

UN Test Description Comments / Test Result

T.1 Altitude NL ,NV, ND, NR, NF - PASS

T.2 Thermal Cycling NL ,NV, ND, NR, NF - PASS

T.3 Vibration NL ,NV, ND, NR, NF - PASS

T.4 Shock NL ,NV, ND, NR, NF - PASS

Table 2: Test Results for the Test Sequence T.1 to T.4

NL = No Leakage, NV = No Venting, ND = No Disassembly, NR = No Rupture, NF = No Fire


Battery Serial No.

WEIGHT (g) Prior to and on completion of the test sequence (T.1 to T.4)

*OCV (Vdc) Prior to and on completion of the test sequence (T.1 to T.4)

Start Finish g

% loss Start Finish V

Charged Batteries

C1 20.7807 20.7784 -0.011 7.33 7.38 +0.05

C2 20.8117 20.8101 -0.007 7.33 7.39 +0.06

C3 20.7154 20.7128 -0.013 7.33 7.38 +0.05

C4 20.7770 20.7743 -0.013 7.33 7.39 +0.06

Discharged Batteries

D1 21.0541 21.0530 -0.005 7.35 7.41 +0.06

D2 20.8657 20.8660 0.000 7.32 7.35 +0.03

D3 20.8087 20.8065 -0.011 7.35 7.39 +0.04

D4 21.1613 21.1597 -0.008 7.33 7.36 +0.03

Table 3: Initial and Final Measurements for Test Sequence T.1 to T.4 Mass loss (%) = (M1 – M2) x 100 M1 (where M1 = Pre test mass and M2 = Post test mass) Maximum voltage loss = 10% after each test procedure T.1 to T.4 *(not applicable to discharged batteries).

4.6 EXTERNAL SHORT CIRCUIT TEST (T.5)

This test simulates an external short circuit.

Each of the test batteries were placed in a thermal conditioning chamber until their

temperatures had stabilised at 55ºC ± 2ºC after which they were subjected to an

external short circuit condition with a total resistance of the shorting link being <100

milliohms. The short circuit condition was continued for a minimum of 1 hour after the

battery external case temperature had returned to the chamber ambient of 55ºC ±

2ºC.

Temperature rises of the batteries were measured using 2 ‘K’ type thermocouples

located on the outer circumferences of the batteries adjacent to cells and additionally

by a thermal imaging camera which was used to check surface temperatures for areas

showing any variation of that indicated by thermocouples. After completion of the test

batteries were observed for a further 6 hours from the end of the short circuit period.

Battery temperatures for test T.5 were recorded by an Agilent data logger.

The maximum recorded values are shown in Table 4. Graphs showing battery

temperature logs for the T.5 Short Circuit tests are reproduced in Figures 10 to 11.


Battery Serial No.

INITIAL TEMP (°C)

MAXIMUM. TEMP (°C)

Comments Result

Charged Batteries

C1 55 ºC±2 ºC <80 ºC NF, NR, ND, T= <170ºC




Discharged Batteries

D1 55 ºC±2 ºC <60 ºC NF, NR, ND, T= <170ºC




Table 4 : T.5: Maximum Recorded Temperatures.

D = Discharged, C= Charged

NF = No Fire, NR = No Rupture, ND = No Disassembly. T= Temperature

T.5 (External Short Circuit) Battery Temperature Logs

Charged Batteries Serial No's C1 to C4

40

50

60

70

80

90

100

0 2 4 6 8 10 12

Time [hours]

Te

mp

era

ture

[°C

]

0

1.5

3

4.5

6

7.5

9

Vo

lta

ge

[V

dc

]

105 <Bat C1 Cell 1> (C)

106 <Bat C1 Cell 2> (C)

107 <Bat C2 Cell 1> (C)

108 <Bat C2 Cell 2> (C)

109 <Bat C3 Cell 1> (C)

110 <Bat C3 Cell 2> (C)

111 <Bat C4 Cell 1> (C)

112 <Bat C4 Cell 2> (C)

113 <Chamber Amb> (C)

101 <Battery C1> (VDC)




Figure 10: Temperature Logs for T.5 (External Short Circuit Test)

BS01P4MD07 Battery Serial No’s C1 to C4 (Charged)


T.5 (External Short Circuit Test) Battery Temperature Logs

Discharge Batteries Serial No's D1 to D4

40

45

50

55

60

65

70

75

80

0.5 1.5 2.5 3.5 4.5 5.5 6.5

Time [hrs]

Te

mp

era

ture

[oC

]

0

1

2

3

4

5

6

7

8

Ba

tte

ry V

olt

ag

e [

Vd

c]

105 <Bat D1 Cell 1> (C)

106 <Bat D1 Cell 2> (C)

107 <Bat D2 Cell 1> (C)

108 <Bat D2 Cell 2> (C)

109 <Bat D3 Cell 1> (C)

110 <Bat D3 Cell 2> (C)

111 <Bat D4 Cell 1> (C)

112 <Bat D4 Cell 2> (C)

113 <Chamber Amb> (C)

101 <Battery D1> (VDC)




Figure 11: Temperature Logs for T.5 (External Short Circuit Test)

BS01P4MD07 Battery Serial No’s D1 to D4 (Discharged)

4.6.1 Test result (T.5)

Pass - There was no disassembly, rupture and no fire within 6 hours of the test. The

external temperature of the batteries did not exceed 170º C.


5.0 CONCLUSIONS

The Steatite 7.2V / 0.8 Ah type BS01P4MD07 (Sencon Model No. SL2061) primary

lithium battery assembly manufactured to Steatite Drawing No. 6913936 Issue G has

been evaluated on the United Nations Recommendations for the Transport of

Dangerous Goods tests (Manual of Tests and Criteria tests T.1 to T.5) for verification

of safe transportation of lithium batteries by air, sea and road.

(Reference publication ST/SG/AC.10/11/Rev.5 + Amendment 2:2013).

Results for the tests T.1 to T.5 have indicated satisfactory compliance with the

acceptance criteria for the tests.





Accordingly the Steatite 7.2V / 0.8Ah Model No. BS01P4MD07 (Sencon Model No.

SL2061) primary lithium battery assembly manufactured to Steatite Drawing No.

6913936 Issue G meets the criteria for transportation of Class 9 goods as defined in

the UN Model Regulations.


6.0 CALIBRATED TEST EQUIPMENT

Description of Equipment

Instrument Reference

Calibration Due date

Electronics Scales (Sartorius) 2393 12th May 2016

DVM (Fluke) 7259 23rd July 2016

Altitude Chamber (In-house) ALT1 Used with Calibrated Equipment

Pressure indicator (Omegadyne) 5193 15th October 2015

Digital Temp / Humidity Indicator 1809 7th November 2015

Digital Temp Indicator 5189 10th November 2015

Thermal Chamber (ACS) 7385 13th February 2016

DVM (Fluke) 1827 18th February 2016

Charge Amp (EE) 1286 10th March 2016

Accelerometer (Endevco) 7366 4th May 2016

Vibration Controller (M+P) 1829 4th February 2016

Drop Shock Machine (MTS) Shock 1 Used with calibrated equipment

VP400 Vibration System (Deritron) Vib rig 1 Used with calibrated equipment

DMM (Fluke) 1828 18th February 2016

Digital Storage Scope (Tektronix) 7274 24th September 2015

‘K’ Type Thermocouples 5200 2nd January 2017

Data Logger (Agilent) 5207 3rd September 2015

Micro-ohmmeter (Keithley) 7095 8th July 2016

Table 5: Calibrated Test Equipment


Appendix 1: Tadiran Component Cell Technical Data Sheet - Lithium Thionyl

Chloride SL-550 ½ AA size cell


Appendix 2: UN 38.3 Transport Certificate of Test for Tadiran Model SL550 ½

AA size Lithium Thionyl Chloride cell


Appendix 3: Drawing No. 6913936 Issue G Steatite Battery Model BS01P4MD07

Documents

Report 102111500LHD-001 Page 2 of 21 - Sencon · 2021. 2. 19. · 4 battery assemblies at 100% charge and 4 battery assemblies at 0% charge. The test samples were pre-prepared by