摘要:
A nonaqueous electrolyte battery includes a positive electrode, a negative electrode and a nonaqueous electrolyte. The negative electrode contains a lithium compound and a negative electrode current collector supporting the lithium compound. A log differential intrusion curve obtained when a pore size diameter of the negative electrode is measured by mercury porosimetry has a peak in a pore size diameter range of 0.03 to 0.2 μm and attenuates with a decrease in pore size diameter from an apex of the peak. A specific surface area (excluding a weight of the negative electrode current collector) of pores of the negative electrode found by mercury porosimetry is 6 to 100 m2/g. A ratio of a volume of pores having a pore size diameter of 0.05 μm or less to a total pore volume is 20% or more.
摘要:
A non-aqueous electrolyte secondary battery includes an electrode body including a positive electrode and a negative electrode superimposed upon each other with a separator interposed therebetween. The negative electrode is superimposed upon the positive electrode in a state where a negative electrode active material layer, except the part on a proximal end part of a negative electrode tab, is positioned inside an outer edge of a positive electrode active material layer of the positive electrode. A width H1 of the negative electrode active material layer including the part on the proximal end part of the negative electrode tab, width H2 of the negative electrode active material layer or negative electrode current collector at a part other than the negative electrode tab, and width H3 of the positive electrode active material layer are formed to satisfy the relationships of H2
摘要:
A nonaqueous electrolyte battery includes a positive electrode, a negative electrode containing a lithium-titanium composite oxide and a lithium-absorbing material in a weight ratio falling within the range defined in formula (1) given below, and a nonaqueous electrolyte. The lithium-absorbing material has a lithium absorption potential nobler than a lithium absorption potential of the lithium-titanium composite oxide. 3≦(A/B)≦100 (1) Where A denotes the weight (parts by weight) of the lithium-titanium composite oxide, and B denotes the weight (parts by weight) of the lithium-absorbing material.
摘要:
A nonaqueous electrolyte battery includes a negative electrode containing a titanium-containing oxide, a positive electrode, and a nonaqueous electrolyte. The positive electrode includes a lithium-transition metal composite oxide and at least one kind of oxide selected from a group consisting of FePO4, Li3Fe2(PO4)3, LiFeP2O7, Fe4(P2O7)3, Fe2(SO4) 3, and V2O5.
摘要翻译:非水电解质电池包括含有氧化钛,正极和非水电解质的负极。 正极包含锂 - 过渡金属复合氧化物和选自FePO 4,Li 3 Fe 2(PO 4)3,LiFeP 2 O 7,Fe 4(P 2 O 7)3,Fe 2(SO 4)3和V 2 O 5)中的至少一种氧化物。
摘要:
A nonaqueous electrolyte battery includes a case, an electrode group, positive electrode tabs and negative electrode tabs. The electrode group comprises a positive electrode, a negative electrode and a separator. The positive electrode, the negative electrode and the separator are spirally coiled in a flat form. The positive electrode tabs are electrically connected to at least two positions among tab positions Pn of the positive electrode and projected from one end surface of the electrode group. The negative electrode tabs are electrically connected to at least two positions among tab positions Nn of the negative electrode and projected from the one end surface.
摘要:
A nonaqueous electrolyte battery includes a positive electrode, a negative electrode and a nonaqueous electrolyte. At least one of the positive electrode and the negative electrode comprises a current collector made of aluminum or an aluminum alloy and an active material layer laminated on the current collector. The active material layer contains first active material particles having an average particle diameter of 1 μm or less and a lithium diffusion coefficient of 1×10−9 cm2/sec or less at 20° C., and second active material particles having an average particle diameter of 2 to 50 μm. A true density of the second active material particles is larger by 0.01 to 2.5 g/cm3 than a true density of the first active material particles.
摘要翻译:非水电解质电池包括正极,负极和非水电解质。 正极和负极中的至少一个包括由铝或铝合金制成的集电体和层叠在集电体上的活性物质层。 活性物质层含有平均粒径为1μm以下的第1活性物质粒子,20以下的锂扩散系数为1×10 -9 cm 2 / sec以下 ℃,平均粒径为2〜50μm的第2活性物质粒子。 第二活性物质颗粒的真密度比第一活性物质颗粒的真密度大0.01〜2.5g / cm 3。
摘要:
A nonaqueous electrolyte battery includes a positive electrode, a negative electrode containing a lithium-titanium composite oxide and a lithium-absorbing material in a weight ratio falling within the range defined in formula (1) given below, and a nonaqueous electrolyte. The lithium-absorbing material has a lithium absorption potential nobler than a lithium absorption potential of the lithium-titanium composite oxide. 3≦(A/B)≦100 (1) Where A denotes the weight (parts by weight) of the lithium-titanium composite oxide, and B denotes the weight (parts by weight) of the lithium-absorbing material.
摘要:
A non-aqueous electrolyte secondary battery includes an electrode body including a positive electrode and a negative electrode superimposed upon each other with a separator interposed therebetween. The negative electrode is superimposed upon the positive electrode in a state where a negative electrode active material layer, except the part on a proximal end part of a negative electrode tab, is positioned inside an outer edge of a positive electrode active material layer of the positive electrode. A width H1 of the negative electrode active material layer including the part on the proximal end part of the negative electrode tab, width H2 of the negative electrode active material layer or negative electrode current collector at a part other than the negative electrode tab, and width H3 of the positive electrode active material layer are formed to satisfy the relationships of H2
摘要:
An electrode for a non-aqueous electrolyte battery includes a current collector formed of aluminum foil or aluminum alloy foil, and an active material-containing layer formed on a surface of the current collector and containing an active material, a conductive agent and a binder. The conductive agent comprises a carbon particle group containing first carbon particles each exhibiting an aspect ratio of more than one. A portion of each of the first carbon particles is embedded into the current collector to the depth corresponding to 20 to 50% of the thickness of the current collector. A major axis of each of the first carbon particles has a length of 1.05 to 1.50 times as large as the thickness of the active material-containing layer.
摘要:
A nonaqueous electrolyte battery includes a positive electrode, a negative electrode and a nonaqueous electrolyte. The negative electrode contains a lithium compound and a negative electrode current collector supporting the lithium compound. A log differential intrusion curve obtained when a pore size diameter of the negative electrode is measured by mercury porosimetry has a peak in a pore size diameter range of 0.03 to 0.2 μm and attenuates with a decrease in pore size diameter from an apex of the peak. A specific surface area (excluding a weight of the negative electrode current collector) of pores of the negative electrode found by mercury porosimetry is 6 to 100 m2/g. A ratio of a volume of pores having a pore size diameter of 0.05 μm or less to a total pore volume is 20% or more.