About 70 results
https://drivepatents.com/patents/1074955 · 17 Aug 2005
It is the aim of the present invention to retain the benefits of a lithium ion cell capable of operating at temperatures down to as low as about -40 DEG C while minimizing the permanent cycle capacity loss under the circumstance of establishing the first c...
https://drivepatents.com/patents/1080675 · 19 Jan 2005
In a positive electrode of a non-aqueous electrolyte battery, at least one alkaline earth metal oxide selected from the group consisting of magnesium oxide, calcium oxide and barium oxide is dispersed between particles of an active substance for positive e...
https://drivepatents.com/patents/1081284 · 29 Dec 2004
An anode comprises active substance particles and at least one metal oxide chosen from titanium dioxide, alumina, zinc oxide, chromium oxide, lithium oxide, nickel oxide, copper oxide or iron oxide, dispersed between the particles.
https://drivepatents.com/patents/1092068 · 5 Nov 2003
The production of a galvanic cell with lithium (Li)-intercalated electrode(s) comprises combining an anode and a cathode and separator(s) with a porous matrix of not less than 60 wt.% ceramic material A containing Li ions and polymer binder; placing in a h...
https://drivepatents.com/patents/1093772 · 27 Aug 2003
A lithium electrochemical cell of either a primary or a secondary chemistry activated with an electrolyte having a cyclic carbonate of a ring size equal to or larger than a six-member ring is described. The cyclic carbonate helps to make the anode passivat...
https://drivepatents.com/patents/1101731 · 18 Sep 2002
In primary cells, the addition of gaseous carbon dioxide to the nonaqueous electrolyte has beneficial effects in terms of minimizing or eliminating voltage delay and reducing Rdc build-up when the cell is subjected to pulse current discharge conditions. Fo...
https://drivepatents.com/patents/1102071 · 4 Sep 2002
The loss in delivered capacity (fade) after cycling non-aqueous rechargeable lithium batteries can be reduced by incorporating a cathode powder with LiCoO2 type-structure that has been mixed and heat-treated with a small amount of lithium borate. The inven...
https://drivepatents.com/patents/1108042 · 5 Dec 2001
A nonaqueous electrolyte secondary battery comprises a cathode having a cathode active material capable of electrochemically doping/dedoping lithium, an anode having an anode active material capable of electrochemically doping/dedoping lithium and a nonaqu...
https://drivepatents.com/patents/1109172 · 17 Oct 2001
A non-aqueous electrolyte secondary battery having excellent charge/discharge characteristics and a long cycle life, and generating a smaller amount of gas during storage than conventional batteries, comprising a positive electrode; a negative electrode; a...
https://drivepatents.com/patents/1112962 · 16 May 2001
A non-aqueous secondary battery comprising a negative electrode made of an active negative electrode material capable of intercalating/deintercalating lithium ion, a positive electrode made of spinnel type lithium manganese oxide as a main active positive ...