More competitors--Motorola.
I thought this patent assigment was particularly interesting especially for Valence. (Guess this removes the speculation regarding the renewal of the old Valence/Motorola relationship)
United States Patent 5,620,811
Zhang, et. al. Apr. 15, 1997
Lithium polymer electrochemical cells
Inventors:
Zhang; Jinshan (Coral Springs, FL); Venugopal; Ganesh (Plantation, FL); Anani; Anaba (Lauderhill,
FL).
Assignee:
Motorola, Inc. (Schaumburg, IL).
Appl. No.: 452,935
Filed: May 30, 1995
Intl. Cl. : H01M 6/16, H01M 6/14, H01M 4/62, H01M 4/50
Current U.S. Cl.: 429/192; 429/194; 429/217; 429/218; 429/223; 429/224
Field of Search: 429/192, 194, 218, 223, 224, 217
Primary Examiner: Valentine; Donald R.
Attorney, Agent or Firm: Massaroni; Kenneth M.
Abstract
A secondary lithium electrochemical charge storage device, such as a battery (10) is taught. The battery (10) includes a first composite electrode (20), and electrolyte layer (40), and a second composite electrode (30). The composite electrodes include at least an active material, and a polymer or polymer blend for lending ionic conductivity and mechanical strength. The electrolyte may also include a polymer as well as an electrolyte active material. The polymer from which the composite electrode is fabricated may be the same as or different than the polymer from which the electrolyte layer is fabricated.
27 Claims, 4 Drawing Figures
[USPTO] [CNIDR]
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