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Olivier Hequet,1,2 Valerie Mialou,2 Francoise Audat,3 Eric Wattel,4 Valerie Chapel,4 Damiela Revesz,1 Jean-Piere Jouet,3 Brigitte Fisseaux,5 Mohamed Saoud,6 Mauricette Michallet4 1Apheresis Unit, 2Cell Therapy Laboratory, Etablissement Français du Sang (EFS) Rhône Alpes, Centre Hospitalier Lyon Sud, Pierre Bénite, 3Biomedicine Agency, Saint-Denis, 4Hematological Unit, Hospices Civils de Lyon, Centre Hospitalier Lyon Sud, Pierre Bénite, 5Psychiatric Unit, Hospices Civils de Lyon, Centre Hospitalier, Bourgoin Jallieu, 6Psychiatric Unit, Hospices Civils de Lyon, Centre Hospitalier P Wertheimer, Lyon, France Abstract: Allogeneic hematopoietic stem cell transplantation can efficiently treat patients with severe hematological diseases. A human leukocyte antigen-compatible donor is required for performing transplantation. The occurrence of unexpected acute severe diseases in a donor can compromise the feasibility of allogeneic hematopoietic stem cell transplantation. However, when a severe health problem occurs in a donor while the recipient has already received a conditioning regimen, hematologists have to find the best solutions for the recipient, while the team in charge of the donor has to find the best medical solutions for the donor. We describe here the occurrence of psychiatric acute complications in an unrelated donor while the myeloablative conditioning regimen had already been given to the recipient. We report the successive decisions that were made in an emergency based upon the expertise of physicians specialized in hematology, apheresis, cell therapy, and psychiatry to preserve the donor’s health and recipient’s life. Keywords: hematopoietic stem cells, mobilization, harvest, psychiatric complication, CD34+ cells, unrelated donor

High‐voltage spinel LiNi0.5Mn1.5O4 (LNMO) is a promising cathode material for high‐energy‐density and high‐power‐density lithium‐ion batteries (LIBs). The high cost of the currently available LIBs needs to be addressed urgently for wide application in the transport sector (electric vehicles, buses) and large‐scale energy storage systems (ESS). Of significance, herein, novel fast and scalable microwave‐assisted synthesis of LNMO is reported, which leads to a production cost cut. X‐ray diffraction (XRD) analysis confirms the formation of the desired phase with high crystallinity. Field emission scanning (FE‐SEM) and transmission electron microscopy (TEM) analyses indicate that the synthesized phase is of nanometric size (50–150 nm) due to an extremely short sintering time (20 min). The material synthesized at 750 °C shows a higher initial discharge capacity (130 mA h g−1) than that synthesized at 650 °C (115 mA h g−1). The materials heat treated at higher temperatures show better electrochemical performance in terms of initial capacity, rate capability, and improved cycling. The improved electrochemical performance of LNMO at 750 °C is attributed to the formation of a stable crystal structure, low charge transfer resistance at the electrode/electrolyte interface, high electrical conductivity due to the presence of a disorder structure, and improved ionic diffusivity. [ABSTRACT FROM AUTHOR]