Storage battery system, on-vehicle power supply system, vehicle and method for charging storage battery system
First Claim
1. An on-vehicle power supply system comprising:
- a storage battery system, the storage battery system comprising;
a battery module A comprising a first nonaqueous electrolyte battery including a negative-electrode material which has an average grain size of 2 μ
m or more;
a battery module B comprising a second nonaqueous electrolyte battery including a negative-electrode material which has an average grain size of primary particles of 1 μ
m or less and is configured to occlude lithium ions within a range of 0.4V (vs.Li/Li+) or more;
a motor or dynamo configured to supply a power to the battery module B; and
a controller configured to intermittently connect the battery module A to the battery module B to intermittently supply power from the battery module A to the battery module B by repeating cycles of charging the battery module B from the battery module A and non-charging, while setting a state of charge of the second nonaqueous electrolyte battery within a range of 10 to 90%, when the motor or dynamo is stopped,wherein when power is supplied to the storage battery system from the motor or dynamo, the controller intermittently causes the power from the motor or dynamo to be supplied to the battery module B, and causes the battery module A to supply power to the motor or dynamo, the power from the battery module A being lower than the power supplied to the battery module B.
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Accused Products
Abstract
A storage battery system includes a battery module A with a first nonaqueous electrolyte battery including a negative-electrode material which has an average grain size of 2 μm or more and is used to occlude and discharge lithium ions, a battery module B with a second nonaqueous electrolyte battery set at a lithium-ion-occluding potential of 0.4V (vs.Li/Li) or more, and including a negative-electrode material which has an average grain size of primary particles of 1 μm or less and is used to occlude lithium ions, and a controller configured to intermittently connect the module A to the module B to intermittently supply power from the module A to the module B to set a charge state and a discharge depth of the second nonaqueous electrolyte battery within a range of 10 to 90%, when no power is supplied to the module B at least from an outside.
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Citations
13 Claims
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1. An on-vehicle power supply system comprising:
- a storage battery system, the storage battery system comprising;
a battery module A comprising a first nonaqueous electrolyte battery including a negative-electrode material which has an average grain size of 2 μ
m or more;a battery module B comprising a second nonaqueous electrolyte battery including a negative-electrode material which has an average grain size of primary particles of 1 μ
m or less and is configured to occlude lithium ions within a range of 0.4V (vs.Li/Li+) or more;a motor or dynamo configured to supply a power to the battery module B; and a controller configured to intermittently connect the battery module A to the battery module B to intermittently supply power from the battery module A to the battery module B by repeating cycles of charging the battery module B from the battery module A and non-charging, while setting a state of charge of the second nonaqueous electrolyte battery within a range of 10 to 90%, when the motor or dynamo is stopped, wherein when power is supplied to the storage battery system from the motor or dynamo, the controller intermittently causes the power from the motor or dynamo to be supplied to the battery module B, and causes the battery module A to supply power to the motor or dynamo, the power from the battery module A being lower than the power supplied to the battery module B. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
- a storage battery system, the storage battery system comprising;
Specification