Battery pack system
First Claim
1. A battery pack system, comprising:
- a battery pack including a plurality of parallel groups connected in series, each parallel group including a plurality of batteries connected in parallel; and
electronics configured to charge the battery pack at a first current level and to drop the current from the first current level to a second current level one or more times while charging the battery pack, the second current level being lower than the first current level.
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Accused Products
Abstract
A battery pack system is disclosed. The battery pack system includes a battery pack having batteries arranged in a plurality of parallel groups that are connected in series. Each parallel group includes a plurality of the batteries connected in parallel. The electronics are configured to drop the current at which the battery pack is operating from a first current level to a second current level one or more times. The second current level is lower than the first current level. The electronics can drop the current from the first current level to the second current level during the charge and/or discharge of the battery pack. In some instances, the electronics intermittently drop the current from the first current level to the second current level during the charge and/or discharge of the battery pack.
66 Citations
20 Claims
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1. A battery pack system, comprising:
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a battery pack including a plurality of parallel groups connected in series, each parallel group including a plurality of batteries connected in parallel; and electronics configured to charge the battery pack at a first current level and to drop the current from the first current level to a second current level one or more times while charging the battery pack, the second current level being lower than the first current level. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A battery pack system, comprising:
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a plurality of system parallel groups connected in series, each system parallel group including a plurality of battery packs connected in parallel; each battery pack including a plurality of parallel groups connected in series, each parallel group including a plurality of batteries connected in parallel; electronics configured to charge the battery packs at a first current level and to drop the current from the first current level to a second current level one or more time while charging the battery packs, the second current level being lower than the first current level; the electronics being configured to stop intermittently dropping the current from the first current level to the second current level when the first current level rises above an upper current threshold; and the electronics being configured to stop intermittently dropping the current from the first current level to the second current level when the first current level falls below a lower current threshold.
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9. A battery pack system, comprising:
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a pack assembly having a plurality of system parallel groups connected in series, each system parallel group including a plurality of battery packs connected in parallel; electronics configured to charge the pack assembly at a first current level and to intermittently drop the current from the first current level to a second current level while charging the pack assembly, the second current level being lower than the first current level. - View Dependent Claims (10, 11, 12, 13, 14)
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15. A battery pack system, comprising:
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a battery pack including a plurality of parallel groups connected in series, each parallel group including a plurality of batteries connected in parallel; electronics configured to discharge and/or charge the battery pack; and one or more shunt circuits configured to bypass one or more of the parallel groups, the shunt circuits being activated by the electronics.
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16. A battery pack system, comprising:
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a pack assembly having a plurality of system parallel groups connected in series, each system parallel group including a plurality of battery packs connected in parallel; electronics configured to charge and/or discharge the pack assembly; and one or more shunt circuits configured to bypass one or more of the system parallel groups, the shunt circuits being activated by the electronics.
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17. A battery pack system, comprising:
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a battery pack including a plurality of parallel groups connected in series, each parallel group including a plurality of batteries connected in parallel; electronics configured to discharge and/or charge the battery pack; and a switch connected in series with one or more batteries, the switch being operated by the electronics. - View Dependent Claims (18)
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19. A battery pack system, comprising:
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a pack assembly having a plurality of system parallel groups connected in series, each system parallel group including a plurality of battery packs connected in parallel; electronics configured to charge and/or discharge the pack assembly; and a switch connected in series with one or more battery pack, the switch being operated by the electronics. - View Dependent Claims (20)
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Specification