Invention Grant
US06673493B2 Double current collector cathode design using the same active material in varying formulations for alkali metal or ion electrochemical cells
有权
双重集电器阴极设计，在不同的碱金属或离子电化学电池配方中使用相同的活性材料
- Patent Title: Double current collector cathode design using the same active material in varying formulations for alkali metal or ion electrochemical cells
- Patent Title (中): 双重集电器阴极设计，在不同的碱金属或离子电化学电池配方中使用相同的活性材料
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Application No.: US09970341Application Date: 2001-10-03
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Publication No.: US06673493B2Publication Date: 2004-01-06
- Inventor: Hong Gan , Esther S. Takeuchi
- Applicant: Hong Gan , Esther S. Takeuchi
- Main IPC: H01M464
- IPC: H01M464
Abstract:
A new sandwich cathode design is provided comprising a cathode active material mixed with a binder and a conductive diluent in at least two differing formulations. The formulations are then individually pressed on opposite sides of a current collector, so that both are in direct contact with the current collector. Preferably, the active formulation on the side of the current collector facing the anode is of a lesser percentage of the active material than that on the opposite side of the current collector. Such an exemplary cathode design might look like: SVO (100-x % active)/current collector/SVO (100-y % active)/current collector/SVO (100-x % active), wherein x is greater than y.
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