A non-aqueous electrolyte secondary cell has reduced degradation of the electrolytic solution or the anode active material and high cycle durability. The non-aqueous electrolyte secondary cell includes: a cathode capable of doping and de-doping lithium ions; an anode capable of occluding and releasing lithium ions, lithium or a lithium alloy; and an electrolytic solution containing an organic solvent, a lithium salt electrolyte and an additive. The cathode active material of the cathode contains a layered lithium-containing transition metal oxide of formula Li.sub.1.5[Ni.sub.aCo.sub.bMn.sub.c[Li].sub.d]O.sub.3, where a, b, c, and d satisfy 0<a<1.4, 0≦b<1.4, 0<c<1.4, 0<d≦0.5, a+b+c+d=1.5, and 1.0≦a+b+c<1.5. The anode active material contains a carbon-based material with the surface fully or partly covered with a coating derived from the additive.

Supplemental lithium can be used to stabilize lithium ion batteries with lithium rich metal oxides as the positive electrode active material. Dramatic improvements in the specific capacity at long cycling have been obtained. The supplemental lithium can be provided with the negative electrode, or alternatively as a sacrificial material that is subsequently driven into the negative electrode active material. The supplemental lithium can be provided to the negative electrode active material prior to assembly of the battery using electrochemical deposition. The positive electrode active materials can comprise a layered-layered structure comprising manganese as well as nickel and/or cobalt.

A thermally managed electrical energy storage device enclosure includes a monocoque body formed from a plastic material using a single batch process and at least one void defined by a circumferential inner wall of the monocoque body. The void is adapted to receive at least one electrical energy storage device with a compression interference fit between an entire outer circumferential surface of the electrical energy storage device and the circumferential inner wall. The circumferential inner wall exerts a uniform radial force on the electrical energy storage device received therein.

A metal-ion battery includes: (1) an anode including aluminum; (2) a cathode including a layered, active material; and (3) an electrolyte disposed between the anode and the cathode to support reversible deposition and dissolution of aluminum at the anode and reversible intercalation and de-intercalation of anions at the cathode.

Embodiments described herein involve methods of forming an interactive card with indicators on a substrate. A plurality of indicators are formed on the substrate by way of a printed electronics process. A plurality of displaceable regions of piezoelectric material are formed on the substrate by way of a printed electronics process. Electrical interconnections are formed on the substrate by way of a printed electronics process, the electrical interconnections connecting an indicator and an associated displaceable region of piezoelectric material such that displacement of the associated displaceable region of piezoelectric material generates a voltage therein that is provided to the indicator in order to actuate the indicator and thereby indicate displacement of the associated displaceable region of piezoelectric material.

The invention concerns a battery pack (1), comprising a plurality of electrically connected battery cells (2), wherein the battery cells (2) are substantially flat with two opposite sides (2a, 2b) and a peripheral edge (2c), and wherein the battery cells (2) are arranged side by side as to form a layered structure, and an electronic arrangement configured to monitor and control the battery cells (2). The invention is characterized in that the electronic arrangement comprises a plurality of individual electronic circuit units (30), each of which being associated with a corresponding battery cell (2), wherein each of the electronic circuit units (30) is configured to be capable of monitoring and controlling its corresponding battery cell (2), and wherein each electronic circuit unit (30) is arranged on a thin and flexible circuit carrying sheet (3) that is arranged at one of the sides (2a, 2b) of the corresponding battery cell (2). The invention also concerns a method for manufacturing of a battery pack (1).

Particles including a core and a coat covering at least part of the core surface. The core has more than 50% of an acidic metal oxide and the core coating is based on a polymer, preferably based on a solid polymer with high electrochemical stability. The particle has a solubility rate (ds), in fixed time, of the metal oxide migrating towards the electrolyte, per cycle, which is less than 5 per 10000. The particles are obtained by mixing the polymer and a metal oxide, via dry process with addition of solvent. The electrodes constituting an electrode substrate at least partly coated with a mixture consisting of at least 40 of those particles have remarkable electrochemical properties, in particular regarding the lifetime of batteries in which they are incorporated.

A cathode element is formed as a continuous single element with a plurality of cathode leaves connected by cathode bridges. An anode element is similarly formed as a continuous single element with a plurality of anode leaves connected by anode bridges. The cathode element and anode element can be aligned and interleaved at spaces between adjacent leaves. The resulting battery pre-stack can then be folded along its bridges in alternating directions to form a battery stack whose layers alternate between an anode and cathode, and which requires minimal components and minimal or no welds.

Energy storage structures and fabrication methods are provided. The method include: providing first and second conductive sheet portions separated by a permeable separator sheet, and defining, at least in part, outer walls of the energy storage structure, the first and second surface regions of the first and second conductive sheet portions including first and second electrodes facing first and second (opposite) surfaces of the permeable separator sheet; forming an electrolyte receiving chamber, defined, at least in part, by the first and second surface regions, including: bonding the first and second conductive sheet portions, and the permeable separator sheet together with at least one bonding border forming a bordering frame around at least a portion of the first and second electrodes; and providing an electrolyte within the electrolyte receiving chamber, including in contact with the first and second electrodes, with the electrolyte being capable of passing through the permeable separator sheet.

A battery unit (1) for a motor vehicle has at least one first battery module (10) and at least one second battery module (12) in a battery housing (14). The first battery module (10) has at least one first electrical connection (16), and the second battery module (12) has at least one second electrical connection (18). The battery housing (14) has an opening (20) and an electrically conductive element (22) can be inserted through the opening (20) for electrically conductively connecting the first electrical connection (16) to the second electrical connection (18).