TECHNICAL ISO/TR REPORT 20891 First edition 2020-10 Space systems Space batteries Guidelines for in-flight health assessment of lithium-ion batteries Systemes spatiaux- Batteries spatiales - lignes directrices pour I'évaluation en vol de la sante des batteries lithium-ion Reference number IS0/TR 20891:2020(E) ISO @ISO2020 IS0/TR 20891:2020(E) COPYRIGHT PROTECTED DOCUMENT @ISO2020 All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting below or Iso's member body in the country of the requester. ISO copyright office CP 401 : Ch. de Blandonnet 8 CH-1214 Vernier, Geneva Phone: +4122 749 0111 Email: copyright@iso.org Website: www.iso.org Published in Switzerland ii @ IS0 2020 - All rights reserved