Systems, structures and materials for electrochemical device thermal management

A wrapping material for the thermal management and protection of the electrochemical cell, the wrapping material comprising:

• a polymer matrix comprising two or more temperature management materials, at least one of the two or more temperature management materials comprising,
• a polymeric phase change material, and
• at least one other of the two or more temperature management materials comprising,
• a polymer elastomer comprising block copolymers with crosslinked hard or soft segments, wherein the crosslinks are non-covalent,
• wherein the polymer elastomer surrounds the microencapsulated phase change material and the polymer matrix is homogeneous and solid at room temperature, and
• wherein the wrapping material forms an individual sheet having a uniform thickness, has a latent heat of at least 5 Joules per gram and a transition temperature between 0° C. and 100° C., and is configured to be wrapped one or more times around an outer surface of an electrochemical cell.

A container for the thermal management and protection of an electrochemical cell pack configured to be in physical contact with a plurality of electrochemical cells, the container comprising:

• a polymer matrix comprising two or more temperature management materials,
• at least one of the two or more temperature management materials comprising;
• a microencapsulated phase change material, and
• at least one other of the two or more temperature management materials comprising;
• a polymer elastomer comprising block copolymers with crosslinked hard or soft segments, wherein the crosslinks are non-covalent;
• wherein the polymer elastomer surrounds the microencapsulated phase change material and the polymer matrix is homogeneous and solid at room temperature, and
• wherein the container has a latent heat of at least 5 Joules per gram and a transition temperature between 0° C. and 100° C. is configured to be in physical contact with at least a portion of an outer surface of at least one of the plurality of electrochemical cells.

A portable electrochemical-cell-powered device, comprising:

• one or more electrochemical cells;
• a casing for the one or more electrochemical cells comprising;
• a polymer matrix comprising two or more temperature management materials,
• at least one of the two or more temperature management materials comprising,
• a microencapsulated phase change material, and
• at least one other of the two or more temperature management materials comprising,
• a polymer elastomer comprising block copolymers with crosslinked hard or soft segments, wherein the crosslinks are non-covalent,
• wherein the polymer elastomer surrounds the microencapsulated phase change material and the polymer matrix is homogeneous and solid at room temperature, and
• wherein the wrapping material forms an individual sheet having a uniform thickness, has a latent heat of at least 5 Joules per gram and a transition temperature between 0° C. and 100° C., and is configured to be wrapped one or more times around an outer surface of an electrochemical cell.

A vehicle, comprising;

• at least one component powered by an electrochemical cell pack and,
• a container configured to be in physical contact with a plurality of electrochemical cells, the container comprising;
• a polymer matrix comprising two or more temperature management materials,
• at least one of the two or more temperature management materials comprising;
• a microencapsulated phase change material, and
• at least one other of the two or more temperature management materials comprising;
• a polymer elastomer comprising block copolymers with crosslinked hard or soft segments, wherein the crosslinks are non-covalent;
• wherein the polymer elastomer surrounds the microencapsulated phase change material and the polymer matrix is homogeneous and solid at room temperature, and
• wherein the container has a latent heat of at least 5 Joules per gram and a transition temperature between 0° C. and 100° C. is configured to be in physical contact with at least a portion of an outer surface of at least one of the plurality of electrochemical cells.