Electrode active material comprising a compound of the formula A a + x ¢ M¹ 1 + x / 2 ¢ M ¢ º 1 - a / 2 ¢ P 1 - x ¢ S ¢ i x ¢ O 4 , wherein (a) A is selected from the group consisting of Li, Na, K, and mixtures thereof, where 0 < a < 1.0 and x = 0...

The invention provides a novel method for making lithium mixed metal materials in electrochemical cells. The lithium mixed metal materials comprise lithium and at least one other metal besides lithium. The invention involves the reaction of a metal compoun...

The invention provides a novel method for making lithium mixed metal materials in electrochemical cells. The lithium mixed metal materials comprise lithium and at least one other metal besides lithium. The invention involves the reaction of a metal compoun...

The invention provides an electrochemical cell which comprises a first electrode and a second electrode which is a counter electrode to said first electrode. The first electrode comprises a phosphorous compound of the nominal general formula LiE'E"(PO), de...

The invention provides novel lithium-mixed metal materials which, upon electrochemical interaction, release lithium ions, and are capable of reversibly cycling lithium ions. The invention provides a rechargeable lithium battery which comprises an electrode...

A method of fabricating electrochemical cells and batteries wherein the successive anode and cathode layers are separated by a polymeric electrolyte layer having a protuding polymer edge around its perimeter which reduces the likelihood of inadvertent cont...

The invention provides novel lithium-mixed metal materials which, upon electrochemical interaction, release lithium ions, and are capable of reversibly cycling lithium ions. The invention provides a rechargeable lithium battery which comprises an electrode...

The invention provides a new electrode active material and cells and batteries which utilize such active material. The active material is represented by the nominal general formula LiaM'(2-b)M"bSicP(3-c)O12, 0 ≤ b ≤ 2, 0 < c < 3. M' and M" are each ele...

The present invention provides a solution to the problem of degradation of the polymeric binder material used in lithium secondary cells based on a reduction in number of active sites in the copolymer. The battery of the present invention comprises a posit...