SATPC0030455 Tab 04 SOW.pdf

STATEMENT OF WORK – LI-ION BATTERY TESTING

1. Background/ Test Objective:

The vast majority of the electric Vertical Take-off and Landing (eVTOL) aircraft currently in design or prototype stages utilize electric or hybrid electric propulsion systems. These systems consist of the Energy Storage Systems (ESS), which are typically large Lithium-Ion (Li-Ion) battery modules and associated battery management systems (BMS) connected to a variety of electric motors and propellers. This type of system is a new alternative to conventional liquid propulsion systems, and has been created to operate quietly and economically, which are factors for operating in the urban environment, all while producing zero or close to zero emissions, which are environmental factors. One barrier hindering potential growth of these new aircraft is the certification aspect for the ESS systems. The certification for the ESS systems will have to be based on a variety of requirements, one of which may involve the survivability of the ESS in a dynamic mishap event or crash. The performance of the ESS systems undergoing loading within the dynamic impact environment is unknown and a gap in the current knowledgebase. This barrier will need to be overcome before widespread adaptation can occur.

To address this gap, NASA is engaging in a test program to dynamically drop test deenergized ESS modules in order to:

• Determine the applicability of a 50 ft drop test utilized from existing FAA regulations.

• Determine the performance and survivability of the ESS to a 50 ft drop test.

• Generate data to support regulations development

2. Requirements:

In order to fulfill the test objective mentioned above, the ESS supplier/vendor shall perform the following duties related to the dynamic drop testing:

Equipment:

• Manufacture and deliver seven (7) deenergized Li-Ion battery modules to a NASA defined location.

Engineering Support:

• Total support of 272 hours and would encompass the following:

o Pre-test meetings/discussions to develop battery drop test plan and test details, including items such as mounting mechanisms, structure development, instrumentation usage and placement, etc.

o On-site test setup and travel (up to 40 hours) o On-call availability for duration of testing o Advisement for storage, safe handling and transportation of battery modules o Advisement/consultation for post-test inspections, including data review and damage inspections Disposal:

• Disposal of used battery modules after post-test inspections

3. Place of Performance A NASA facility or a facility external to NASA (utilizing external facilities and personnel)

4. Period of Performance

• 18 months