Abstract: The present disclosure relates to an auxiliary device for monitoring a module and/or pack of an electric battery system. The auxiliary device provides module-level and/or pack-level measurements and may be flexibly placed anywhere within an electric battery monitoring system.

Abstract: The present invention relates to an arrangement 10 comprising plural electric battery cell modules. Each of the electric battery cell modules comprises at least one electric battery cell12 and a module antenna 14. The arrangement further comprises a transmission line 16 operative as an antenna. The arrangement 10 is configured to provide near field electromagnetic coupling of data between the transmission line 16 and each of the plural battery cell modules by way of the module antenna 14.

Abstract: The present invention relates to an electric battery (10). The electric battery (10) comprises plural battery cells (12), with each battery cell comprising a container. The container contains an electrochemical arrangement. Each battery cell (12) comprises positive and negative terminals of sheet form which extend from the electrochemical arrangement. The electric battery further comprises plural measurement arrangements (14), with each of the plural measurement arrangements being electrically coupled to each of two spaced apart locations on one of the positive and negative terminals of a respective one of the plural battery cells. Each of the plural measurement arrangements (14) is configured to measure potential difference between the two spaced apart locations.

Abstract: A pouch cell battery assembly is disclosed, comprising a pouch cell battery and an electronic device. The pouch cell battery comprises: an expandable enclosure, accommodating an anode stack, a cathode stack, and a separator disposed between the anode and cathode stacks; first and second contact terminals, the first contact terminal being electrically coupled to the anode stack and the second contact terminal being electrically coupled to the cathode stack. The electronic device may be at least partly affixed to the expandable enclosure, and electrically coupled to the first and second contact terminals. The electronic device may be configured to determine at least one physical characteristic of the pouch cell battery.

Abstract: A system for monitoring the state of a battery comprising cell groups includes cell monitoring devices (CMDs) associated with corresponding cell groups and a battery management system (BMS). Each CMD measures properties of cells in the respective cell group using its sensor system and evaluates the measurements to detect faults at the monitored cells. When CMD detects a fault, CMD stores a fault indicator, indicating that the respective cell group experienced a fault, and fault data related to the detected fault, including a timestamp indicating when CMD detected the fault, for subsequent transmission to BMS. Upon waking, BMS receives and processes fault indicators and fault data shared by CMDs to determine action(s) responsive to the fault(s) detected by CMDs.

Abstract: The present invention relates to a maturation process for at least one electric battery cell 32. The maturation process comprises charging the at least one electric battery cell 32 and subjecting the at least one electric battery cell to a maturation period of at least one day wherein no electrical load other than a measurement apparatus 30 is connected to the at least one electric battery cell. The maturation process also comprises taking at least one measurement of the open circuit voltage of the at least one electric battery cell 32 with the measurement apparatus 30 between the start and the end of the maturation period. The maturation process further comprises determining the integrity of the at least one electric battery cell in dependence on the at least one measurement.

Abstract: A battery system (200) comprising a plurality of battery cells (210) and a plurality of monitoring devices (215) for to monitoring characteristics of the plurality of battery cells (210) is disclosed wherein the plurality of monitoring devices (215) are communicatively coupled via a near field radio coupling with an antenna (260) configured as a loop. A controller (250) causes a radio manager (270) to transmit a plurality of signals of different frequencies in a first and then a second direction around the antenna (260). The controller (250) can then determine the position of a monitoring device (215) along the length of the antenna (260) based on an observed rate of change of phase difference of signals transmitted in different directions around the antenna (260) with frequency observed at the monitoring device (215).

Abstract: A method of and processor for determining a position of a battery cell within a battery system comprising a plurality of battery cells, each battery cell having a unique identifier (ID) is provided. Each battery cell is configured to emit a first signal when in a first state, the first signal enabling the battery cell in the first state to be distinguished from the plurality of other battery cells comprised in the battery system. The method may comprise: receiving a first signal associated with a battery cell in the first state; obtaining the unique ID associated with the battery cell in the first state; determining the position of the battery cell in the first state within the battery system, based on the received first signal associated with the battery cell in the first state; and associating the determined position with the received unique ID of the battery cell in the first state.

Abstract: Methods and systems for determining a position of a battery cell within a battery system comprising a plurality of battery cells are disclosed. Each battery cell has a unique identifier, and each battery cell is configured to experience a change in voltage when an electrical stimulus is applied to the battery cell. The method comprises receiving a first signal associated with a first battery cell experiencing a change in voltage due to an electrical stimulus applied to the battery cell; obtaining the unique ID associated with the first battery cell; determining the position of the first battery cell, based on the received first signal associated with the first battery cell; and associating the determined position with the obtained unique ID of the first battery cell.

Abstract: A method of and processor for determining a position of a battery cell within a battery system comprising a plurality of battery cells, each battery cell having a unique identifier (ID) is provided. Each battery cell is configured to emit a first signal when in a first state, the first signal enabling the battery cell in the first state to be distinguished from the plurality of other battery cells comprised in the battery system. The method may comprise: receiving a first signal associated with a battery cell in the first state; obtaining the unique ID associated with the battery cell in the first state; determining the position of the battery cell in the first state within the battery system, based on the received first signal associated with the battery cell in the first state; and associating the determined position with the received unique ID of the battery cell in the first state.

Abstract: The present invention relates to an arrangement 10 comprising plural electric battery cell modules. Each of the electric battery cell modules comprises at least one electric battery cell 12 and a module antenna 14. The arrangement further comprises a transmission line 16 operative as an antenna. The arrangement 10 is configured to provide near field electromagnetic coupling of data between the transmission line 16 and each of the plural battery cell modules by way of the module antenna 14.

Abstract: A maturation process for an electric battery cell comprises charging the electric battery cell, subjecting the electric battery cell to a maturation period of at least one day while no electrical load other than a measurement apparatus is connected to the electric battery cell, and taking at least one measurement of the open circuit voltage of the electric battery cell during the maturation period using the measurement apparatus. The measurement apparatus is incorporated into a structure of the electric battery cell, forming an integral part of the electric battery cell. The maturation process further comprises determining whether electric battery cell is defective in dependence on the at least one measurement.

Abstract: The present invention relates to an electric battery (10). The electric battery (10) comprises plural battery cells (12), with each battery cell comprising a container. The container contains an electrochemical arrangement. Each battery cell (12) comprises positive and negative terminals of sheet form which extend from the electrochemical arrangement. The electric battery further comprises plural measurement arrangements (14), with each of the plural measurement arrangements being electrically coupled to each of two spaced apart locations on one of the positive and negative terminals of a respective one of the plural battery cells. Each of the plural measurement arrangements (14) is configured to measure potential difference between the two spaced apart locations.

Abstract: A pouch cell battery assembly is disclosed, comprising a pouch cell battery and an electronic device. The pouch cell battery comprises: an expandable enclosure, accommodating an anode stack, a cathode stack, and a separator disposed between the anode and cathode stacks; first and second contact terminals, the first contact terminal being electrically coupled to the anode stack and the second contact terminal being electrically coupled to the cathode stack. The electronic device may be at least partly affixed to the expandable enclosure, and electrically coupled to the first and second contact terminals. The electronic device may be configured to determine at least one physical characteristic of the pouch cell battery.

Abstract: The present invention relates to an electric battery (10). The electric battery (10) comprises plural battery cells (12), with each battery cell comprising a container. The container contains an electrochemical arrangement. Each battery cell (12) comprises positive and negative terminals of sheet form which extend from the electrochemical arrangement. The electric battery further comprises plural measurement arrangements (14), with each of the plural measurement arrangements being electrically coupled to each of two spaced apart locations on one of the positive and negative terminals of a respective one of the plural battery cells. Each of the plural measurement arrangements (14) is configured to measure potential difference between the two spaced apart locations.

Abstract: The present invention relates to an arrangement 10 comprising plural electric battery cell modules. Each of the electric battery cell modules comprises at least one electric battery cell 12 and a module antenna 14. The arrangement further comprises a transmission line 16 operative as an antenna. The arrangement 10 is configured to provide near field electromagnetic coupling of data between the transmission line 16 and each of the plural battery cell modules by way of the module antenna 14.

Abstract: The present invention relates to an arrangement 10 comprising plural electric battery cell modules. Each of the electric battery cell modules comprises at least one electric battery cell 12 and a module antenna 14. The arrangement further comprises a transmission line 16 operative as an antenna. The arrangement 10 is configured to provide near field electromagnetic coupling of data between the transmission line 16 and each of the plural battery cell modules by way of the module antenna 14.

Abstract: An energy conversion arrangement configured to convert chemical energy into electrical energy. The energy conversion arrangement comprises plural cell groups 30, 32, 34, 36, each cell group being configured to convert chemical energy into electrical energy. The energy conversion arrangement also comprises at least one measurement arrangement 38, 40, 42, 44, 46 configured to make measurements at each of the plural cell groups 30, 32, 34, 36. Each energy conversion arrangement is configured to determine a condition of at least one of: each of the plural cell groups; and the energy conversion arrangement. The condition is determined in dependence on the measurements made at each cell group and a model of each cell group.

Abstract: An electric battery assembly is provided comprising: a battery cell having a positive terminal and a negative terminal; an electronic unit comprising a measurement device and a wireless transmitter; a support structure configured for attachment to the battery cell, and arranged to house the electronic unit, the support structure comprising at least one conducting element arranged to electrically couple the electronic unit to the positive and negative terminals, to thereby provide electrical power for the wireless transmitter and the measurement device; and wherein the measurement device is configured to measure a property of the battery cell, and the wireless transmitter is configured to wirelessly transmit the measured property.

Abstract: An energy conversion arrangement configured to convert chemical energy into electrical energy. The energy conversion arrangement comprises plural cell groups 30, 32, 34, 36, each cell group being configured to convert chemical energy into electrical energy. The energy conversion arrangement also comprises at least one measurement arrangement 38, 40, 42, 44, 46 configured to make measurements at each of the plural cell groups 30, 32, 34, 36. Each energy conversion arrangement is configured to determine a condition of at least one of: each of the plural cell groups; and the energy conversion arrangement. The condition is determined in dependence on the measurements made at each cell group and a model of each cell group.