Abstract: A battery (30) is disclosed which comprises: a housing (32) containing an electrolyte solution; a plurality of jelly roll electrode assemblies (10) arranged substantially in parallel with each other in contact with the electrolyte solution within the housing (32) thereby forming a single electrochemical system of the battery (30), each jelly roll electrode assembly (10) having a first end (10A) and an opposing second end (10B); and a current collector plate (20); wherein the current collector plate (20) is arranged to be shared among and in direct physical and electrical contact with the first ends (10A) of the plurality of jelly roll electrode assemblies (10).

Abstract: A battery (30) is disclosed which comprises: a housing (32) containing an electrolyte solution; a plurality of jelly roll electrode assemblies (10) arranged substantially in parallel with each other in contact with the electrolyte solution within the housing (32) thereby forming a single electrochemical system of the battery (30), each jelly roll electrode assembly (10) having a first end (10A) and an opposing second end (10B); and a current collector plate (20); wherein the current collector plate (20) is arranged to be shared among and in direct physical and electrical contact with the first ends (10A) of the plurality of jelly roll electrode assemblies (10).

Abstract: A rechargeable lithium ion or metal hydride battery includes a reaction chamber and a safety vent assembly. The safety vent assembly comprises a sealing member and an urging member to urge the sealing member against a venting aperture on the battery reaction chamber to seal the battery reaction chamber under normal operation conditions. The urging member is to soften or deform on reaching a threshold venting temperature such that pressure inside the reaction chamber will overcome the compressive closure force of the urging member and a venting path will be opened so that gases from the reaction chamber can pass or escape from the reaction chamber to outside though the venting aperture to reduce pressure inside the reaction chamber.

Abstract: A battery (10) comprises a safety vent assembly (100). The safety vent assembly (100) comprises a sealing member (104) and an urging member (106) to urge the sealing member (104) against a venting aperture (105) on a battery reaction chamber to seal the battery reaction chamber when pressure inside the battery reaction chamber is below a venting threshold pressure under normal operation conditions, wherein the sealing member (104) is operable to provide a venting path to vent gas from the battery chamber when pressure inside the battery chamber reaches the venting threshold pressure which is sufficient to overcome the urging force of the sealing member (104), and wherein the urging member (106) is to permanently deform on reaching a venting threshold temperature such that gas venting from the battery chamber will occur at a pressure below the venting threshold pressure.

Abstract: A battery (10) comprises a safety vent assembly (100). The safety vent assembly (100) comprises a sealing member (104) and an urging member (106) to urge the sealing member (104) against a venting aperture (105) on a battery reaction chamber to seal the battery reaction chamber when pressure inside the battery reaction chamber is below a venting threshold pressure under normal operation conditions, wherein the sealing member (104) is operable to provide a venting path to vent gas from the battery chamber when pressure inside the battery chamber reaches the venting threshold pressure which is sufficient to overcome the urging force of the sealing member (104), and wherein the urging member (106) is to permanently deform on reaching a venting threshold temperature such that gas venting from the battery chamber will occur at a pressure below the venting threshold pressure.