Systems for storing and/or transporting temperature-sensitive payloads

A system for storing and/or transporting a payload comprising:

• a portable storage vessel having a plurality of interior recesses, the plurality of interior recesses comprising:
• a central recess for receiving the payload;
• a number, n1, of first cooling zone recesses radially outward from the central recess;
• a number, n2, of second cooling zone recesses radially outward from the plurality of first cooling zone recesses;
• a number, n3, of first thermal storage cells, individual first thermal storage cells comprising a container having an interior volume and a first phase change material disposed in the interior volume, with individual first thermal storage cells being disposed in the first cooling zone recesses;
• and
• a number, n4, of second thermal storage cells, individual second thermal storage cells comprising a container having an interior volume and a second phase change material disposed in the interior volume, with individual second thermal storage cells being disposed in the second cooling zone recesses;
• wherein the first phase change material has a first phase transition temperature;
• wherein the second phase change material has a second phase transition temperature;
• wherein the second phase transition temperature is between 10° C. and 15° C. higher than the first phase transition temperature;
• and
• wherein each of the first phase transition temperature and the second phase transition temperature are below 0° C.