1. A method comprising:
implementing a first charging method during one or more charge cycles of a battery, the first charging method including a first voltage charging level; and
implementing a second charging method during one or more charge cycles of the battery, wherein the second charging method includes a second voltage charging level that is higher than the first charging level.
2. The method of claim 1 further comprising:
determining that the battery is fully charged using the first charging method; and
implementing the second charging method in response to determining that the battery is fully charged.
3. The method of claim 1 wherein the second charging method is implemented in succession of the first charging method after the first charging method has been implemented on the battery that places the battery in a predetermined charge state.
4. The method of claim 1 further comprising:
determining that the battery has aged for a predetermined amount of time; and
implementing the second charging method in response to determining that the battery has aged for the predetermined amount of time.
5. The method of claim 1 further comprising:
implementing the first charging method more frequently than the second charging method.
6. The method of claim 1 wherein the first voltage charging level is a level below a maximum charging level specified for the battery.
7. The method of claim 1 wherein the second voltage charging level is a level in proximity to a maximum charging level specified for the battery.
8. A system comprising:
one or more system components that consume power;
a battery that provides power to the one or more system components; and
a battery management unit that charges the battery, wherein the battery management unit performs steps that include:
implementing a first charging method during one or more charge cycles of a battery, the first charging method including a first voltage charging level; and
implementing a second charging method during one or more charge cycles of the battery, wherein the second charging method includes a second voltage charging level that is higher than the first charging level.
9. The system of claim 8 wherein the battery management unit further performs steps that include:
determining that the battery is fully charged using the first charging method; and
implementing the second charging method in response to determining that the battery is fully charged.
10. The system of claim 8 wherein the second charging method is implemented in succession of the first charging method after the first charging method has been implemented on the battery that places the battery in a predetermined charge state.
11. The system of claim 8 wherein the battery management unit further performs steps that include:
determining that the battery has aged for a predetermined amount of time; and
implementing the second charging method in response to determining that the battery has aged for the predetermined amount of time.
12. The system of claim 8 wherein:
the first voltage charging level is a level below a maximum charging level specified for the battery; and
the second voltage charging level is a level in proximity to a maximum charging level specified for the battery.
13. The system of claim 8 wherein the one or more system components further comprise:
one or more processors;
a memory accessible by at least one of the processors; and
a nonvolatile storage area accessible by at least one of the processors.
14. The system of claim 8 wherein the one or more system components comprise a motor included in a transportation vehicle, wherein the motor receives power from the battery in order to propel the vehicle.
15. A method comprising:
identifying a first temperature associated with a machine;
comparing the first temperature with a temperature threshold;
in response to determining that the first temperature is lower than the temperature threshold, implementing a first charging method during a first charge cycle of a battery, the first charging method including a first voltage charging level; and
in response to determining that the first temperature is higher than the temperature threshold, implementing a second charging method during a second charge cycle of the battery, wherein the second charging method includes a second voltage charging level that is higher than the first charging level.
16. The method of claim 1 wherein the first temperature is a temperature selected from the group consisting of a temperature of the battery, a temperature of the machine, and an ambient temperature.
17. A method comprising:
receiving one or more battery parameter values that correspond to a battery;
identifying, in order to adjust a thickness of a solid electrolyte interface included in the battery during a battery charge cycle, one or more battery charging parameters based upon the one or more battery parameter values; and
charging the battery using the one or more battery charging parameters
18. The method of claim 17 further comprising:
retrieving charge history parameters that correspond to one or more prior battery charge cycles of the battery; and
wherein the battery charging parameters are based upon the charge history parameters.
19. The method of claim 18 further comprising:
determining, based upon the charge history parameters, that the solid electrolyte interface requires regeneration; and
in response to determining that the solid electrolyte interface requires regeneration:
increasing a voltage limit to charge the battery; and
increasing a temperature limit to charge the battery.
20. The method of claim 17 wherein the battery parameter value is an impedance value of the battery, the method further comprising:
determining that the impedance value of the battery exceeds threshold; and
setting the battery charging parameters in order to reduce the solid electrolyte interface thickness during the charging.
21. The method of claim 17 wherein the charging, based upon the battery charging parameters, further comprises:
detecting that the battery has reached a full charge; and
continuing to charge the battery for a predetermined amount of time in response to detecting that the battery has reached full charge.
The claims below are in addition to those above.
All refrences to claim(s) which appear below refer to the numbering after this setence.
1-22. (canceled)
23. A method for manufacturing a thin film magnetic head comprising a write element, comprising the steps of:
forming a first coil, a first pole piece and a first back gap piece on a first insulating film formed on the surface of a first magnetic film so that each of them has a taper angle making its sectional shape wider in the lower part of it and narrower in the upper part;
forming a second insulating film on the surfaces of said first coil, first pole piece and first back gap piece and the vicinity thereof;
forming a first seed film on said second insulating film;
growing a plating film for a second coil on said first seed film in an area where said second coil is to be formed, so that said plating film fills up the spaces between said first pole piece and the outermost coil turn of said first coil, between coil turns of said first coil, and between the innermost coil turn of said first coil and said first back gap piece; and
flattening said plating film by polishing so that a pattern of said second coil is obtained.
24. A manufacturing method according to claim 23, further comprising the steps of:
forming a third coil, a second pole piece and a second back gap piece on the flattened surface that has been formed by the flattening process for obtaining a pattern of said second coil;
forming a third insulating film on the surfaces of said third coil, said second pole piece and said second back gap piece and the vicinity thereof;
forming a second seed film on said third insulating film;
growing a plating film for a fourth coil on said second seed film in an area where said fourth coil is to be formed, so that said plating film fills up the spaces between said second pole piece and the outermost coil turn of said third coil, between coil turns of said third coil, and between the innermost coil turn of said third coil and said second back gap piece; and
forming an insulating film covering said plating film and thereafter performing a flattening process for obtaining a pattern of said fourth coil.
25. A manufacturing method according to claim 24, further comprising the step of:
forming said third coil, said second pole piece and said second back gap piece each having a taper angle making its sectional shape wider in the lower part of it and narrower in the upper part.
26. A manufacturing method according to claim 23, wherein said first coil is formed by means of a Cu-plating process; and said plating film for said second coil is formed by means of a Cu-plating process.
27. A manufacturing method according to claim 23, wherein said first seed film comprises a Cu film formed by sputtering and a Cu film formed by CVD.
28. A manufacturing method according to claim 23, wherein said second seed film comprises a Cu film formed by sputtering and a Cu film formed by CVD, and said second coil is formed by applying a Cu-plating process onto said second seed film.
29. A manufacturing method according to claim 23, wherein said insulating film is an alumina-CVD film formed by an atomic layer method.
30. A manufacturing method according to claim 29, wherein said insulating film is in a range of 50 nm to 150 nm in thickness.
31. A manufacturing method according to claim 23, wherein said taper angles are determined by selecting a focusing position in a photolithography process.
32. A manufacturing method according to claim 23, wherein said taper angles are determined by an ion beam etching process.