METHOD AND SYSTEM FOR MANAGING THE STATE OF CHARGE OF A LITHIUM-ION CELL MODULE
The state of charge of a lithium-ion cell module including several cells is managed by observing changes in a cell's differential capacity curve exceeding or falling short of a preset limit value during a discharging or charging process of the cell. Each of the changes is a change which is spec...
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| creator | VUORILEHTO, KAI VÄYRYNEN, ANTTI |
| description | The state of charge of a lithium-ion cell module including several cells is managed by observing changes in a cell's differential capacity curve exceeding or falling short of a preset limit value during a discharging or charging process of the cell. Each of the changes is a change which is specific for this particular cell and consistent with a specific state of charge of the cell, whereby the ordinal number of a differential capacity curve change is used as a basis for determining a state of charge of the cell consistent with the change or a difference in the states of charge between two or more cells. The thus determined state of charge differences between cells are then sought to be balanced by a balancing system adapted to balance a charge. |
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| language | eng ; fre ; ger |
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| subjects | CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTINGELECTRIC POWER CONVERSION OR DISTRIBUTION OF ELECTRIC POWER ELECTRICITY GENERATION SYSTEMS FOR STORING ELECTRIC ENERGY |
| title | METHOD AND SYSTEM FOR MANAGING THE STATE OF CHARGE OF A LITHIUM-ION CELL MODULE |
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