Abstract: A photovoltaic cell can include an interfacial layer in contact with a semiconductor layer.

Abstract: An electrochemical cell including a getter material, a battery including the electrochemical cell, and methods of forming the electrochemical cell and battery are disclosed.

Abstract: An electrochemical cell including a getter material, a battery including the electrochemical cell, and methods of forming the electrochemical cell and battery are disclosed.

Abstract: A rechargeable battery with elastically compliant housing includes a housing and at least one battery cell. The housing includes a pair of substantially rigid end plates and an elastically compliant structure joining the end plates so that the end plates are oriented in respective planes that are substantially parallel to each other and define a gap there between. Each battery cell is contained in the housing in the gap between the end plates and includes an anode, a cathode, and a separator between the anode and the cathode. The elastically compliant structure joins the end plates and includes an elastic component that exhibits elastic expansion greater than 3% along an axis orthogonal to the planes in which the end plates are oriented.

Abstract: Electrolytes for use in commercially viable, rechargeable lithium metal batteries are described. The electrolytes contain one or more lithium salts, one or more organic solvents, and one or more additives. The electrolytes allow for reversible deposition and dissolution of lithium metal. Specific additives or additive combinations dramatically improved cycle life, decrease cell swelling, and/or lower cell impedance.

Abstract: A secondary cell comprising a positive cathode electrode of capacity P (mAh) in communication with a liquid or gel electrolyte; an negative anode electrode of capacity N (mAh) in communication with the electrolyte; and a separator permeable to at least one mobile species which is redox-active at least one of the anode and the cathode; designed and constructed such that the anode capacity N is smaller than that of the cathode capacity P, hence N/P<0.9.

Abstract: An electrochemical cell including a getter material, a battery including the electrochemical cell, and methods of forming the electrochemical cell and battery are disclosed.

Abstract: An electrochemical cell including a getter material, a battery including the electrochemical cell, and methods of forming the electrochemical cell and battery are disclosed.

Abstract: An electrochemical cell includes an electrode assembly comprising at least one pair of a wound or stacked anode and cathode a housing comprising an insulating soft flexible pouch enclosing the electrode assembly. The electrode assembly and each anode and cathode respectfully have a thickness, width and length measured parallel to a common set of orthogonal axes, wherein (i) the thickness represents the smallest dimension of each anode and cathode but represents the greatest dimension of the full electrode assembly, (ii) the width represents a maximum dimension perpendicular to the thickness, and (iii) an aspect ratio of the width to the thickness of the electrode assembly is less than 1.

Abstract: A rechargeable battery with elastically compliant housing includes a housing and at least one battery cell. The housing includes a pair of substantially rigid end plates and an elastically compliant structure joining the end plates so that the end plates are oriented in respective planes that are substantially parallel to each other and define a gap there between. Each battery cell is contained in the housing in the gap between the end plates and includes an anode, a cathode, and a separator between the anode and the cathode. The elastically compliant structure joins the end plates and includes an elastic component that exhibits elastic expansion greater than 3% along an axis orthogonal to the planes in which the end plates are oriented.

Abstract: A secondary cell comprising a positive cathode electrode of capacity P (mAh) in communication with a liquid or gel electrolyte; an negative anode electrode of capacity N (mAh) in communication with the electrolyte; and a separator permeable to at least one mobile species which is redox-active at least one of the anode and the cathode; designed and constructed such that the anode capacity N is smaller than that of the cathode capacity P, hence N/P<0.9.

Abstract: A secondary cell comprising a positive cathode electrode of capacity P (mAh) in communication with a liquid or gel electrolyte; an negative anode electrode of capacity N (mAh) in communication with the electrolyte; and a separator permeable to at least one mobile species which is redox-active at least one of the anode and the cathode; designed and constructed such that the anode capacity N is smaller than that of the cathode capacity P, hence N/P<0.9.

Abstract: Electrolytes for use in commercially viable, rechargeable lithium metal batteries are described. The electrolytes contain one or more lithium salts, one or more organic solvents, and one or more additives. The electrolytes allow for reversible deposition and dissolution of lithium metal. Specific additives or additive combinations dramatically improved cycle life, decrease cell swelling, and/or lower cell impedance.

Abstract: Electrolytes for use in commercially viable, rechargeable lithium metal batteries are described. The electrolytes contain one or more lithium salts, one or more organic solvents, and one or more additives. The electrolytes allow for reversible deposition and dissolution of lithium metal. Specific additives or additive combinations dramatically improved cycle life, decrease cell swelling, and/or lower cell impedance.

Abstract: A secondary cell comprising a positive cathode electrode of capacity P (mAh) in communication with a liquid or gel electrolyte; an negative anode electrode of capacity N (mAh) in communication with the electrolyte; and a separator permeable to at least one mobile species which is redox-active at least one of the anode and the cathode; designed and constructed such that the anode capacity N is smaller than that of the cathode capacity P, hence N/P<0.9.

Abstract: A photovoltaic cell can include an interfacial layer in contact with a semiconductor layer.

Abstract: A photovoltaic cell can include a dopant in contact with a semiconductor layer.

Abstract: A photovoltaic cell can include a dopant in contact with a semiconductor layer. The photovoltaic cell can include a transparent conductive layer and a first semiconductor layer in contact with the transparent conductive layer, the first semiconductor layer including magnesium. In certain circumstances, a substrate can be a glass substrate. In other circumstances, a substrate can be a metal layer. The first semiconductor layer can include CdS. The first semiconductor layer can have a thickness of between about 200 or 3000 Angstroms. The first semiconductor layer can include 1-20% magnesium. A method of manufacturing a photovoltaic cell can include providing a transparent conductive layer and depositing a first semiconductor layer in contact with the transparent conductive layer, the first semiconductor layer treated with magnesium.

Abstract: A photovoltaic cell including a first semiconductor layer that includes a III-V compound semiconductor, the first semiconductor layer positioned over a transparent conductive layer, and a second semiconductor layer that includes a II-VI compound semiconductor, the second semiconductor layer positioned between the first semiconductor layer and a back metal contact. The photovoltaic cell further includes an interfacial layer between the first and second semiconductor layers that enhances a rectifying junction formed between the III-V and II-VI compound semiconductor materials.

Abstract: Electrochemical devices which incorporate cathode materials that include layered crystalline compounds for which a structural modification has been achieved which increases the diffusion rate of multi-valent ions into and out of the cathode materials. Examples in which the layer spacing of the layered electrode materials is modified to have a specific spacing range such that the spacing is optimal for diffusion of magnesium ions are presented. An electrochemical cell comprised of a positive intercalation electrode, a negative metal electrode, and a separator impregnated with a nonaqueous electrolyte solution containing multi-valent ions and arranged between the positive electrode and the negative electrode active material is described.