JP2019145285A - All-solid battery - Google Patents
All-solid battery Download PDFInfo
- Publication number
- JP2019145285A JP2019145285A JP2018027222A JP2018027222A JP2019145285A JP 2019145285 A JP2019145285 A JP 2019145285A JP 2018027222 A JP2018027222 A JP 2018027222A JP 2018027222 A JP2018027222 A JP 2018027222A JP 2019145285 A JP2019145285 A JP 2019145285A
- Authority
- JP
- Japan
- Prior art keywords
- layer
- active material
- positive electrode
- negative electrode
- current collector
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000007787 solid Substances 0.000 title claims abstract description 36
- 239000010410 layer Substances 0.000 claims abstract description 145
- 239000012790 adhesive layer Substances 0.000 claims abstract description 33
- 239000007784 solid electrolyte Substances 0.000 claims abstract description 25
- 239000007774 positive electrode material Substances 0.000 claims abstract description 24
- 239000007773 negative electrode material Substances 0.000 claims abstract description 23
- 239000011149 active material Substances 0.000 abstract description 22
- 230000000452 restraining effect Effects 0.000 abstract 1
- 239000004743 Polypropylene Substances 0.000 description 10
- -1 nickel metal hydride Chemical class 0.000 description 10
- 229920001155 polypropylene Polymers 0.000 description 10
- 239000011230 binding agent Substances 0.000 description 6
- 239000000463 material Substances 0.000 description 6
- PXHVJJICTQNCMI-UHFFFAOYSA-N nickel Substances [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 6
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 5
- 239000000853 adhesive Substances 0.000 description 5
- 230000001070 adhesive effect Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 5
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 4
- 229910018130 Li 2 S-P 2 S 5 Inorganic materials 0.000 description 4
- 239000011888 foil Substances 0.000 description 4
- 238000003475 lamination Methods 0.000 description 4
- 229910052759 nickel Inorganic materials 0.000 description 4
- 238000002360 preparation method Methods 0.000 description 4
- 239000010936 titanium Substances 0.000 description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 3
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 3
- 239000000654 additive Substances 0.000 description 3
- 229910052782 aluminium Inorganic materials 0.000 description 3
- 239000002134 carbon nanofiber Substances 0.000 description 3
- 239000002482 conductive additive Substances 0.000 description 3
- 239000005038 ethylene vinyl acetate Substances 0.000 description 3
- 229910052742 iron Inorganic materials 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 description 3
- 229920005989 resin Polymers 0.000 description 3
- 239000011347 resin Substances 0.000 description 3
- 229910052719 titanium Inorganic materials 0.000 description 3
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 2
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 2
- 239000002033 PVDF binder Substances 0.000 description 2
- 229920003171 Poly (ethylene oxide) Polymers 0.000 description 2
- 239000005062 Polybutadiene Substances 0.000 description 2
- 230000000996 additive effect Effects 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 2
- 239000000956 alloy Substances 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 239000003575 carbonaceous material Substances 0.000 description 2
- 239000004020 conductor Substances 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000011889 copper foil Substances 0.000 description 2
- 239000003792 electrolyte Substances 0.000 description 2
- 229920006242 ethylene acrylic acid copolymer Polymers 0.000 description 2
- 229920005648 ethylene methacrylic acid copolymer Polymers 0.000 description 2
- 229920006244 ethylene-ethyl acrylate Polymers 0.000 description 2
- 229920006225 ethylene-methyl acrylate Polymers 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 229920001903 high density polyethylene Polymers 0.000 description 2
- 239000004700 high-density polyethylene Substances 0.000 description 2
- 229910052744 lithium Inorganic materials 0.000 description 2
- 229910001416 lithium ion Inorganic materials 0.000 description 2
- 229920001684 low density polyethylene Polymers 0.000 description 2
- 239000004702 low-density polyethylene Substances 0.000 description 2
- 229920001179 medium density polyethylene Polymers 0.000 description 2
- 239000004701 medium-density polyethylene Substances 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 150000002739 metals Chemical class 0.000 description 2
- 239000011255 nonaqueous electrolyte Substances 0.000 description 2
- 229920002857 polybutadiene Polymers 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
- 229920000098 polyolefin Polymers 0.000 description 2
- 229920001451 polypropylene glycol Polymers 0.000 description 2
- 229920002981 polyvinylidene fluoride Polymers 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 229910052710 silicon Inorganic materials 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 239000002203 sulfidic glass Substances 0.000 description 2
- 229920000049 Carbon (fiber) Polymers 0.000 description 1
- 229920002134 Carboxymethyl cellulose Polymers 0.000 description 1
- KMTRUDSVKNLOMY-UHFFFAOYSA-N Ethylene carbonate Chemical compound O=C1OCCO1 KMTRUDSVKNLOMY-UHFFFAOYSA-N 0.000 description 1
- 229910005839 GeS 2 Inorganic materials 0.000 description 1
- 239000004831 Hot glue Substances 0.000 description 1
- 229910018133 Li 2 S-SiS 2 Inorganic materials 0.000 description 1
- 229910000733 Li alloy Inorganic materials 0.000 description 1
- 229910008088 Li-Mn Inorganic materials 0.000 description 1
- 229910013932 Li3.25P0.75S4 Inorganic materials 0.000 description 1
- 229910012735 LiCo1/3Ni1/3Mn1/3O2 Inorganic materials 0.000 description 1
- 229910012851 LiCoO 2 Inorganic materials 0.000 description 1
- 229910010835 LiI-Li2S-P2S5 Inorganic materials 0.000 description 1
- 229910010833 LiI-Li2S-SiS2 Inorganic materials 0.000 description 1
- 229910010842 LiI—Li2S—P2O5 Inorganic materials 0.000 description 1
- 229910010840 LiI—Li2S—P2S5 Inorganic materials 0.000 description 1
- 229910010855 LiI—Li2S—SiS2 Inorganic materials 0.000 description 1
- 229910010847 LiI—Li3PO4-P2S5 Inorganic materials 0.000 description 1
- 229910010864 LiI—Li3PO4—P2S5 Inorganic materials 0.000 description 1
- 229910015643 LiMn 2 O 4 Inorganic materials 0.000 description 1
- 229910013290 LiNiO 2 Inorganic materials 0.000 description 1
- 229920010126 Linear Low Density Polyethylene (LLDPE) Polymers 0.000 description 1
- 229910006327 Li—Mn Inorganic materials 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 description 1
- 229910001069 Ti alloy Inorganic materials 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- 239000012752 auxiliary agent Substances 0.000 description 1
- CREMABGTGYGIQB-UHFFFAOYSA-N carbon carbon Chemical compound C.C CREMABGTGYGIQB-UHFFFAOYSA-N 0.000 description 1
- 239000011203 carbon fibre reinforced carbon Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
- QHGJSLXSVXVKHZ-UHFFFAOYSA-N dilithium;dioxido(dioxo)manganese Chemical compound [Li+].[Li+].[O-][Mn]([O-])(=O)=O QHGJSLXSVXVKHZ-UHFFFAOYSA-N 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 239000008151 electrolyte solution Substances 0.000 description 1
- HDERJYVLTPVNRI-UHFFFAOYSA-N ethene;ethenyl acetate Chemical class C=C.CC(=O)OC=C HDERJYVLTPVNRI-UHFFFAOYSA-N 0.000 description 1
- JBTWLSYIZRCDFO-UHFFFAOYSA-N ethyl methyl carbonate Chemical compound CCOC(=O)OC JBTWLSYIZRCDFO-UHFFFAOYSA-N 0.000 description 1
- 125000000816 ethylene group Chemical group [H]C([H])([*:1])C([H])([H])[*:2] 0.000 description 1
- 239000005042 ethylene-ethyl acrylate Substances 0.000 description 1
- 239000002241 glass-ceramic Substances 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 229910021385 hard carbon Inorganic materials 0.000 description 1
- 229920001519 homopolymer Polymers 0.000 description 1
- 229910052738 indium Inorganic materials 0.000 description 1
- AMXOYNBUYSYVKV-UHFFFAOYSA-M lithium bromide Inorganic materials [Li+].[Br-] AMXOYNBUYSYVKV-UHFFFAOYSA-M 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229910052987 metal hydride Inorganic materials 0.000 description 1
- 229910021645 metal ion Inorganic materials 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical class C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920005678 polyethylene based resin Polymers 0.000 description 1
- 229920013716 polyethylene resin Polymers 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 125000004805 propylene group Chemical group [H]C([H])([H])C([H])([*:1])C([H])([H])[*:2] 0.000 description 1
- 229910021384 soft carbon Inorganic materials 0.000 description 1
- 229910052596 spinel Inorganic materials 0.000 description 1
- 239000011029 spinel Substances 0.000 description 1
- 229920003048 styrene butadiene rubber Polymers 0.000 description 1
- 230000008961 swelling Effects 0.000 description 1
- 229920005992 thermoplastic resin Polymers 0.000 description 1
Images
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
Abstract
Description
本発明は、全固体電池に関する。 The present invention relates to an all solid state battery.
ハイブリッド自動車等の電動機を駆動するための電源として、ニッケル水素電池及びリ
チウムイオン電池等の全固体電池が注目されている。かかる全固体電池は、正極集電体層、正極活物質層、固体電解質層、負極活物質層、及び負極集電体層を具備している。
All-solid-state batteries such as nickel metal hydride batteries and lithium ion batteries have attracted attention as power sources for driving electric motors of hybrid vehicles and the like. Such an all-solid battery includes a positive electrode current collector layer, a positive electrode active material layer, a solid electrolyte layer, a negative electrode active material layer, and a negative electrode current collector layer.
全固体電池の実際の使用の際の振動、衝撃等によっても電池性能が変動しないようにするため、積層された複数の単位全固体電池が互いにずれないように固定することが望ましい。かかる固定を実現するため、種々の技術が提案されている。 In order to prevent the battery performance from fluctuating due to vibration, impact, etc. during actual use of the all-solid-state battery, it is desirable to fix the stacked unit all-solid batteries so that they do not deviate from each other. Various techniques have been proposed to realize such fixing.
特許文献1では、少なくとも第1の電極の集電体、第1の電極の活物質層、固体電解質層、第1の電極の対極である第2の電極の活物質層、第2の電極の集電体、第2の電極の活物質層、固体電解質層、及び第1の電極の活物質層がこの順に積層された電池ユニットの2つ以上が積層されて成り、上記電池ユニットの第1の電極の集電体と、集電体に隣接して積層された電池ユニットとを接着するための接着手段を有することを特徴とする、全固体電池が開示されている。特許文献1では、接着手段は、集電体の主要部の形状、すなわちタブ部を除いた部分の形状が方形である場合には、該方形の頂点ごとに、該頂点近傍の辺に沿ってL字型に塗布することが好ましいとしている。 In Patent Document 1, at least the current collector of the first electrode, the active material layer of the first electrode, the solid electrolyte layer, the active material layer of the second electrode that is the counter electrode of the first electrode, and the second electrode Two or more battery units in which the current collector, the active material layer of the second electrode, the solid electrolyte layer, and the active material layer of the first electrode are stacked in this order are stacked, and the first of the battery units is formed. There is disclosed an all solid state battery characterized in that it has an adhesion means for adhering the current collector of the electrode and the battery unit laminated adjacent to the current collector. In Patent Document 1, when the shape of the main portion of the current collector, that is, the shape of the portion excluding the tab portion is a square, the bonding means is arranged along the side near the vertex for each vertex of the square. It is said that it is preferable to apply in an L shape.
特許文献2では、電極である正極と負極とがセパレータを介して交互に配置されるように重ね合わせて電極要素を作製する工程と、電極要素を電解液とともに外装体内に封止する工程と、を有し、電極要素を作製する工程は、電極用加工具を用いて電極準備体を所定の形状に加工して電極を形成する工程と、電極用加工具と相互の位置関係が固定された電極保持機構を用いて電極を保持する工程と、電極保持機構により保持された電極をセパレータ準備体に接着する工程と、電極とセパレータ準備体との接着後、電極保持機構により電極を保持したまま、電極用加工具と相互の位置関係が固定されたセパレータ用加工具を用いて前記セパレータ準備体を所定の形状に加工してセパレータを形成する工程と、を有する、蓄電デバイスの製造方法が開示されている。 In Patent Document 2, a step of producing electrode elements by superimposing so that positive electrodes and negative electrodes, which are electrodes, are alternately arranged via a separator, a step of sealing the electrode elements together with an electrolytic solution in an exterior body, The electrode element is manufactured by forming the electrode by processing the electrode preparation body into a predetermined shape using the electrode processing tool, and the positional relationship between the electrode processing tool is fixed. The step of holding the electrode using the electrode holding mechanism, the step of bonding the electrode held by the electrode holding mechanism to the separator preparation body, and the electrode holding mechanism holding the electrode after bonding the electrode and the separator preparation body And a step of forming the separator by forming the separator preparation body into a predetermined shape using the separator processing tool in which the positional relationship between the electrode processing tool and the electrode tool is fixed. It has been disclosed.
特許文献3では、大きさの異なる正極集電体及び負極集電体の間に正極活物質、電解質、負極活物質を配置すると共に、正極集電体と負極集電体の間の周縁に流動性接着剤を配してなることを特徴とする薄形電池が開示されている。 In Patent Document 3, a positive electrode active material, an electrolyte, and a negative electrode active material are disposed between positive electrode current collectors and negative electrode current collectors having different sizes, and flow around the periphery between the positive electrode current collector and the negative electrode current collector. A thin battery characterized by comprising a conductive adhesive is disclosed.
特許文献4では、第1活物質層と、電解質層と、第1活物質層とは逆の極性を示す第2活物質層とを積層したシート状の単位デバイスを複数接合したエネルギーデバイスであって、エネルギーデバイスは隣接する単位デバイス間を接合する接着剤を備え、接着剤は隣接する単位デバイスのうち少なくとも一方の外表面に設けられた凹部に付与されているエネルギーデバイスが開示されている。 Patent Document 4 is an energy device in which a plurality of sheet-like unit devices in which a first active material layer, an electrolyte layer, and a second active material layer having a polarity opposite to that of the first active material layer are stacked are joined. The energy device includes an adhesive that joins adjacent unit devices, and the energy device is disclosed in which the adhesive is applied to a recess provided on the outer surface of at least one of the adjacent unit devices.
特許文献5では、外装缶の開口部にガスケットを介して封口缶を装着して開口部の周縁部をかしめることにより封口された電池容器を有し、電池容器内には、正極集電体の両面に正極活物質層を形成してなる正極と銅箔製の負極集電体に負極活物質層を形成してなる負極とをセパレータを介して交互に複数段積層してなる積層型の電極体と、エチレンカーボネートおよびメチルエチルカーボネートを含有した非水電解液とが収容されており、電極体における正極が外装缶または封口缶のうちの一方の缶と電気的に接続されているとともに、電極体の積層方向における両端部には銅箔製の負極集電体がそれぞれ配置されて、そのうちの一方の負極集電体が絶縁シートを介して外装缶または封口缶のうちの一方の缶(正極缶)と対向位置し、他方の負極集電体が他方の缶(負極缶)と接触状態で対向位置しており、一方の負極集電体と絶縁シートとがアクリル系のホットメルト接着剤を介して接着されていることを特徴とする非水電解液二次電池が開示されている。 In patent document 5, it has a battery container sealed by attaching a sealing can to the opening part of an exterior can through a gasket, and caulking the peripheral part of the opening part. A laminated type in which a positive electrode formed by forming a positive electrode active material layer on both sides and a negative electrode formed by forming a negative electrode active material layer on a negative electrode current collector made of copper foil are alternately laminated in a plurality of stages via separators. The electrode body and a non-aqueous electrolyte containing ethylene carbonate and methyl ethyl carbonate are accommodated, and the positive electrode in the electrode body is electrically connected to one of the outer can or the sealed can, A negative electrode current collector made of copper foil is disposed at both ends in the stacking direction of the electrode body, and one of the negative electrode current collectors is one of the outer can or the sealed can through the insulating sheet ( Opposite the positive electrode can), the other The negative electrode current collector is opposed to the other can (negative electrode can) in contact, and the one negative electrode current collector and the insulating sheet are bonded via an acrylic hot melt adhesive. A non-aqueous electrolyte secondary battery is disclosed.
方形の集電体層の頂点(四隅)に接着剤を配置し貼り付けた場合、充電時に活物質層の両端部の膨張は抑制されるが、接着剤によって膨張を抑制されていない活物質層の中央部の膨張量は、両端部の膨張量よりも大きくなる。そのため、活物質層が不均一に膨張してしまい、それによって活物質層によって不均一な応力を受ける集電体層が破断する虞があった。 When an adhesive is placed and pasted at the apexes (four corners) of a rectangular current collector layer, the expansion of both ends of the active material layer is suppressed during charging, but the active material layer is not suppressed by the adhesive The amount of expansion at the center of each is greater than the amount of expansion at both ends. As a result, the active material layer expands non-uniformly, which may break the current collector layer that receives non-uniform stress by the active material layer.
したがって、単位全固体電池間の相対的な位置ずれを抑制しつつ、活物質層の不均一な膨張が抑制された、全固体電池を提供する必要性が存在する。 Therefore, there is a need to provide an all-solid battery in which the non-uniform expansion of the active material layer is suppressed while suppressing the relative displacement between unit all-solid batteries.
本発明者らは、鋭意検討したところ、以下の手段により上記課題を解決できることを見出して、本発明を完成させた。すなわち、本発明は、下記のとおりである:
〈態様1〉正極集電体層、正極活物質層、固体電解質層、負極活物質層、及び負極集電体層をこの順で有する単位全固体電池を少なくとも1つ有し、
上記正極集電体層と上記正極活物質層との間又は上記負極集電体層と上記負極活物質層との間に、接着層が存在しており、上記接着層が存在している上記正極集電体層又は上記負極集電体層の主要部が、多角形状であり、かつ上記接着層が、上記主要部の各辺上又は全周に存在している、
全固体電池。
As a result of intensive studies, the present inventors have found that the above problems can be solved by the following means, and have completed the present invention. That is, the present invention is as follows:
<Aspect 1> At least one unit all solid state battery having a positive electrode current collector layer, a positive electrode active material layer, a solid electrolyte layer, a negative electrode active material layer, and a negative electrode current collector layer in this order,
An adhesive layer is present between the positive electrode current collector layer and the positive electrode active material layer or between the negative electrode current collector layer and the negative electrode active material layer, and the adhesive layer is present The main part of the positive electrode current collector layer or the negative electrode current collector layer has a polygonal shape, and the adhesive layer is present on each side or the entire circumference of the main part.
All solid battery.
本発明によれば、単位全固体電池間の相対的な位置ずれを抑制しつつ、活物質層の不均一な膨張が抑制された、全固体電池を提供することができる。 ADVANTAGE OF THE INVENTION According to this invention, the all-solid-state battery by which the non-uniform expansion | swelling of the active material layer was suppressed can be provided, suppressing the relative position shift between unit all-solid-state batteries.
《全固体電池》
図1に示すように、本発明の一態様の全固体電池100は、正極集電体層12、正極活物質層14、固体電解質層30、負極活物質層24、及び負極集電体層22をこの順で有する単位全固体電池を少なくとも1つ有し、
正極集電体層12と正極活物質層14との間又は負極集電体層22と負極活物質層24との間に、接着層40が存在しており、接着層40が存在している正極集電体層12又は負極集電体層22の主要部が、多角形状であり、かつ接着層40が、正極集電体層12又は負極集電体層22の主要部の全周に存在している。
<All-solid battery>
As shown in FIG. 1, the all-
An
また、図2に示すように、本発明の別の態様の全固体電池200は、図1に示した本発明の一態様の全固体電池100と異なり、接着層40が、正極集電体層12又は負極集電体層22の主要部の各辺上に存在している。
In addition, as shown in FIG. 2, the all
ここで、本発明において、「主要部」とは、集電体層のうちのタブを除いた部分をいうものである。主要部の形状は、多角形状である。具体的には、主要部の形状は、三角形状、四角形状、五角形状、六角形状等であってよく、特に正方形状、長方形状であってよい。 Here, in the present invention, the “main part” means a part of the current collector layer excluding the tab. The main part has a polygonal shape. Specifically, the shape of the main part may be a triangular shape, a quadrangular shape, a pentagonal shape, a hexagonal shape or the like, and in particular, a square shape or a rectangular shape.
ここで、本発明において、主要部の「各辺上」とは、主要部の各辺の中央を含み、かつ各辺の長さの50%以上、60%以上、70%以上、又は80%以上であり、かつ100%未満、95%以下、又は90%以下を占める部分を意味するものである。また、主要部の「全周」とは、主要部の全ての辺の長さ全体を意味するものである。換言すれば、「各辺上」と「全周」との間の差異は、主要部の角部を含むか否かにある。 Here, in the present invention, “on each side” of the main part includes the center of each side of the main part and is 50% or more, 60% or more, 70% or more, or 80% of the length of each side. It is the above and means the part which occupies less than 100%, 95% or less, or 90% or less. Further, “the entire circumference” of the main part means the entire length of all sides of the main part. In other words, the difference between “on each side” and “entire circumference” is whether or not the corners of the main part are included.
図3(a)に示している、正極集電体層12の主要部の角部に接着層40を有する従来の全固体電池を充電すると、図3(b)の矢印で示すように、活物質層は、接着層40が存在していない部分については膨張する一方で、接着層40が存在していない部分については膨張が阻害される。その結果、充電後には、全固体電池の面方向における正極活物質層の膨張が不均一となり、主に接着層が存在している部分と存在していない部分との境界付近において、集電体層が活物質層から受ける応力が不均一になり、その結果、集電体層が、破断する虞があった。なお、活物質層の膨張の状態に関しては、差異を明確にするために誇張して示しているものであり、実際の縮尺とは必ずしも一致していないことに留意されたい。
When a conventional all solid state battery having the
これに対し、図4(a)に示している、正極集電体層12の主要部の全周に接着層40を有する本発明の一態様の全固体電池100を充電すると、図4(b)の矢印で示すように、いずれの部分においても満遍なく活物質層の膨張が阻害されることとなる。その結果、集電体層が活物質層から受ける応力の差異が抑制されるため、集電体層の破断が抑制されると考えられる。
On the other hand, when the all
また、図5(a)に示している、正極集電体層12の主要部の各辺上に接着層40を有する本発明の別の態様の全固体電池200を充電すると、図5(b)の矢印で示すように、膨張が大きい各辺の中央部の膨張が阻害されることとなる。この場合、主要部の角部においては、活物質層の膨張は阻害されないが、角部は充電部の膨張が生じにくい部分であるため、集電体層の破断をもたらす程度の集電体層が活物質層から受ける応力の差異は生じないと考えられる。
Moreover, when the all-solid-
以下では、本発明の全固体電池の各構成要素について説明する。 Below, each component of the all-solid-state battery of this invention is demonstrated.
〈接着層〉
接着層としては、例えばポリオレフィン等の熱可塑性樹脂を用いることができる。ポリオレフィンとしては、ポリエチレン系樹脂、ポリプロピレン系樹脂等が挙げられる。
<Adhesive layer>
As the adhesive layer, for example, a thermoplastic resin such as polyolefin can be used. Examples of the polyolefin include polyethylene resins and polypropylene resins.
なお、本明細書において、ポリエチレン系樹脂とは、ポリマーの主鎖にエチレン基の繰返し単位を、30mol%以上、40mol%以上、50mol%以上、60mol%以上、70mol%以上、又は80mol%以上含む樹脂であり、例えば、低密度ポリエチレン(LDPE)、直鎖状低密度ポリエチレン(LLDPE)、中密度ポリエチレン(MDPE)、高密度ポリエチレン(HDPE)、エチレン−アクリル酸共重合体(EAA)、エチレン−メタクリル酸共重合体(EMAA)、エチレン−エチルアクリレート共重合体(EEA)、エチレン−メチルアクリレート共重合体(EMA)、エチレンビニルアセテート共重合体(EVA)、カルボン酸変性ポリエチレン、カルボン酸変性エチレンビニルアセテート共重合体、及びこれらの誘導体、並びにこれらの混合物からなる群より選択される。 In the present specification, the polyethylene-based resin includes a repeating unit of an ethylene group in a polymer main chain of 30 mol% or more, 40 mol% or more, 50 mol% or more, 60 mol% or more, 70 mol% or more, or 80 mol% or more. For example, low density polyethylene (LDPE), linear low density polyethylene (LLDPE), medium density polyethylene (MDPE), high density polyethylene (HDPE), ethylene-acrylic acid copolymer (EAA), ethylene- Methacrylic acid copolymer (EMAA), ethylene-ethyl acrylate copolymer (EEA), ethylene-methyl acrylate copolymer (EMA), ethylene vinyl acetate copolymer (EVA), carboxylic acid-modified polyethylene, carboxylic acid-modified ethylene Vinyl acetate copolymer and Derivatives of al, and is selected from the group consisting of mixtures.
本明細書において、ポリプロピレン系樹脂とは、ポリマーの主鎖にプロピレン基の繰返し単位を、30mol%以上、40mol%以上、50mol%以上、60mol%以上、70mol%以上、又は80mol%以上含む樹脂であり、例えば、ポリプロピレン(PP)ホモポリマー、ランダムポリプロピレン(ランダムPP)、ブロックポリプロピレン(ブロックPP)、塩素化ポリプロピレン、カルボン酸変性ポリプロピレン、及びこれらの誘導体、並びにこれらの混合物が挙げられる。 In this specification, the polypropylene resin is a resin containing propylene group repeating units in a polymer main chain of 30 mol% or more, 40 mol% or more, 50 mol% or more, 60 mol% or more, 70 mol% or more, or 80 mol% or more. Yes, for example, polypropylene (PP) homopolymer, random polypropylene (random PP), block polypropylene (block PP), chlorinated polypropylene, carboxylic acid-modified polypropylene, and derivatives thereof, and mixtures thereof.
〈正極集電体層〉
正極集電体層に用いられる導電性材料は、特に限定されず、全固体電池に使用できる公知のものを適宜採用されうる。例えば、ステンレス(SUS)、アルミニウム、銅、ニッケル、鉄、チタン、及びカーボンなどが挙げられる。
<Positive electrode current collector layer>
The conductive material used for the positive electrode current collector layer is not particularly limited, and any known material that can be used for an all-solid battery can be appropriately employed. Examples include stainless steel (SUS), aluminum, copper, nickel, iron, titanium, and carbon.
本開示にかかる正極集電体層の形状として、特に限定されず、例えば、箔状、板状、メッシュ状などを挙げることができる。これらの中で、箔状が好ましい。 The shape of the positive electrode current collector layer according to the present disclosure is not particularly limited, and examples thereof include a foil shape, a plate shape, and a mesh shape. Among these, a foil shape is preferable.
〈正極活物質層〉
正極活物質層は、少なくとも正極活物質を含有しており、好ましくは後述する固体電解質を更に含む。そのほか、使用用途や使用目的などに合わせて、例えば、導電助剤又はバインダーなどの全固体電池の正極活物質層に用いられる添加剤を含むことができる。
<Positive electrode active material layer>
The positive electrode active material layer contains at least a positive electrode active material, and preferably further includes a solid electrolyte described later. In addition, an additive used for a positive electrode active material layer of an all-solid battery, such as a conductive additive or a binder, can be included in accordance with the intended use or intended purpose.
本開示において、用いられる正極活物質材料として、特に限定されず、公知のものが用いられる。例えば、コバルト酸リチウム(LiCoO2)、ニッケル酸リチウム(LiNiO2)、マンガン酸リチウム(LiMn2O4)、LiCo1/3Ni1/3Mn1/3O2、Li1+xMn2−x−yMyO4(Mは、Al、Mg、Co、Fe、Ni、及びZnから選ばれる1種以上の金属元素)で表される組成の異種元素置換Li−Mnスピネルなどが挙げられるが、これらに限定されない。 In the present disclosure, the positive electrode active material used is not particularly limited, and a known material is used. For example, lithium cobaltate (LiCoO 2 ), lithium nickelate (LiNiO 2 ), lithium manganate (LiMn 2 O 4 ), LiCo 1/3 Ni 1/3 Mn 1/3 O 2 , Li 1 + x Mn 2−x− y M y O 4 (M is, Al, Mg, Co, Fe, Ni, and one or more metal elements selected from Zn) such heterogeneous element substituted Li-Mn spinel composition represented by the can be mentioned, It is not limited to these.
導電助剤としては、特に限定されず、公知のものが用いられる。例えば、VGCF(気相成長法炭素繊維、Vapor Grown Carbon Fiber)及びカーボンナノ繊維などの炭素材並びに金属材などが挙げられるが、これらに限定されない。 The conductive auxiliary agent is not particularly limited, and known ones are used. Examples thereof include, but are not limited to, carbon materials such as VGCF (vapor-grown carbon fiber, Vapor Carbon Carbon Fiber) and carbon nanofibers, and metal materials.
バインダーとしては、特に限定されず、公知のものが用いられる。例えば、ポリフッ化ビニリデン(PVdF)、カルボキシメチルセルロース(CMC)、ブタジエンゴム(BR)若しくはスチレンブタジエンゴム(SBR)などの材料又はこれらの組合せを挙げることができるが、これらに限定されない。 It does not specifically limit as a binder, A well-known thing is used. Examples include, but are not limited to, materials such as polyvinylidene fluoride (PVdF), carboxymethylcellulose (CMC), butadiene rubber (BR), styrene butadiene rubber (SBR), or combinations thereof.
〈固体電解質層〉
固体電解質層は、少なくとも固体電解質を含む。固体電解質として、特に限定されず、全固体電池の固体電解質として利用可能な材料を用いることができる。例えば、公知の硫化物固体電解質又は公知の酸化物固体電解質を用いることができる。
<Solid electrolyte layer>
The solid electrolyte layer includes at least a solid electrolyte. The solid electrolyte is not particularly limited, and a material that can be used as a solid electrolyte of an all-solid battery can be used. For example, a known sulfide solid electrolyte or a known oxide solid electrolyte can be used.
硫化物固体電解質の例として、例えば、Li2S−SiS2、LiI−Li2S−SiS2、LiI−Li2S−P2S5、LiI−LiBr−Li2S−P2S5、Li2S−P2S5−LiI−LiBr、Li2S−P2S5−GeS2、LiI−Li2S−P2O5、LiI−Li3PO4−P2S5、及びLi2S−P2S5等;硫化物系結晶質固体電解質、例えば、Li10GeP2S12、Li7P3S11、Li3PS4、及びLi3.25P0.75S4等;並びにこれらの組合せを挙げることができる。 Examples of the sulfide solid electrolyte include, for example, Li 2 S—SiS 2 , LiI—Li 2 S—SiS 2 , LiI—Li 2 S—P 2 S 5 , LiI—LiBr—Li 2 S—P 2 S 5 , Li 2 S-P 2 S 5 -LiI-LiBr, Li 2 S-P 2 S 5 -GeS 2, LiI-Li 2 S-P 2 O 5, LiI-Li 3 PO 4 -P 2 S 5, and Li 2 S-P 2 S 5 and the like; sulfide-based crystalline solid electrolytes such as Li 10 GeP 2 S 12 , Li 7 P 3 S 11 , Li 3 PS 4 , and Li 3.25 P 0.75 S 4 As well as combinations thereof.
酸化物固体電解質の例として、ポリエチレンオキシド(PEO)、ポリプロピレンオキシド(PPO)、及びこれらの共重合体などが挙げられるが、これらに限定されない。 Examples of the oxide solid electrolyte include, but are not limited to, polyethylene oxide (PEO), polypropylene oxide (PPO), and copolymers thereof.
固体電解質は、ガラスであっても、結晶化ガラス(ガラスセラミック)であってもよい。また、固体電解質層は、上述した固体電解質以外に、必要に応じてバインダーなどを含んでもよい。具体例として、上述の「正極活物質層」で列挙された「バインダー」と同様であり、ここでは説明を省略する。 The solid electrolyte may be glass or crystallized glass (glass ceramic). Further, the solid electrolyte layer may contain a binder or the like as necessary in addition to the above-described solid electrolyte. A specific example is the same as the “binder” listed in the “positive electrode active material layer” described above, and a description thereof is omitted here.
〈負極活物質層〉
負極活物質層は、少なくとも負極活物質を含み、好ましくは上述した固体電解質を更に含む。そのほか、使用用途や使用目的などに合わせて、例えば、導電助剤又はバインダーなどの全固体電池の負極活物質層に用いられる添加剤を含むことができる。
<Negative electrode active material layer>
The negative electrode active material layer includes at least a negative electrode active material, and preferably further includes the solid electrolyte described above. In addition, an additive used for the negative electrode active material layer of the all-solid-state battery, such as a conductive additive or a binder, can be included in accordance with the intended use or intended purpose.
本開示において、用いられる負極活物質材料として、特に限定されず、リチウムイオンなどの金属イオンを吸蔵及び放出可能であればよい。例えば、Li、Sn、Si若しくはInなどの金属、リチウムとチタンとの合金、又はハードカーボン、ソフトカーボン若しくはグラファイトなどの炭素材料などが挙げられるが、これらに限定されない。 In the present disclosure, the negative electrode active material used is not particularly limited as long as it can occlude and release metal ions such as lithium ions. Examples include, but are not limited to, metals such as Li, Sn, Si, or In, alloys of lithium and titanium, or carbon materials such as hard carbon, soft carbon, or graphite.
中でも、負極活物質材料として、Li、Sn、Si、In、Tiからなる群より選択される2種以上の金属を含有している合金系負極活物質、特にSiを含有している合金系負極活物質を負極活物質材料として用いた場合には、全固体電池が充電により膨張しやすくなるため、本発明の構成がより有益となる。 Among these, as a negative electrode active material, an alloy-based negative electrode active material containing two or more metals selected from the group consisting of Li, Sn, Si, In, and Ti, particularly an alloy-based negative electrode containing Si When the active material is used as the negative electrode active material, the configuration of the present invention is more useful because the all solid state battery is easily expanded by charging.
負極活物質層に用いられる固体電解質、導電助剤、バインダーなどその他の添加剤については、上述した「正極活物質層」及び「固体電解質層」の項目で説明したものを適宜採用することができる。 As other additives such as a solid electrolyte, a conductive additive, and a binder used in the negative electrode active material layer, those described in the above-mentioned items of “positive electrode active material layer” and “solid electrolyte layer” can be appropriately employed. .
〈負極集電体層〉
負極集電体層に用いられる導電性材料は、特に限定されず、全固体電池に使用できる公知のものを適宜採用されうる。例えば、ステンレス(SUS)、アルミニウム、銅、ニッケル、鉄、チタン、及びカーボンなどが挙げられる。
<Negative electrode current collector layer>
The conductive material used for the negative electrode current collector layer is not particularly limited, and a known material that can be used for an all-solid battery can be appropriately employed. Examples include stainless steel (SUS), aluminum, copper, nickel, iron, titanium, and carbon.
本開示にかかる負極集電体層の形状として、特に限定されず、例えば、箔状、板状、メッシュ状などを挙げることができる。これらの中で、箔状が好ましい。 The shape of the negative electrode current collector layer according to the present disclosure is not particularly limited, and examples thereof include a foil shape, a plate shape, and a mesh shape. Among these, a foil shape is preferable.
《全固体電池の製造方法》
本発明の全固体電池は、例えば以下の方法により製造することができる。なお、以下の記載は、正極集電体層に接着層を積層させる場合に関して記載しているが、負極集電体層に接着層を積層させる場合に関しても、下記と同様の方法が採用できる。
《All-solid battery manufacturing method》
The all solid state battery of the present invention can be manufactured, for example, by the following method. In addition, although the following description is described regarding the case where an adhesive layer is laminated | stacked on a positive electrode collector layer, the method similar to the following is employable also about the case where an adhesive layer is laminated | stacked on a negative electrode collector layer.
〈正極集電体層及び接着層以外の層の積層〉
まず、図1(a)に示す全固体電池を構成する各層のうちの正極集電体層12及び接着層40を除いた部分、すなわち正極活物質層14、固体電解質層30、負極活物質層24、負極集電体層22、負極活物質層24、固体電解質層30、及び正極活物質層14をこの順で配置し、これらをプレスする。
<Lamination of layers other than positive electrode current collector layer and adhesive layer>
First, a portion excluding the positive electrode
層の配置は、例えば各層を構成する物質を塗布して乾燥することにより行うことができる。 The arrangement of the layers can be performed, for example, by applying a substance constituting each layer and drying.
プレス時の圧力は、例えば100MPa以上、200MPa以上、300MPa以上、400MPa以上、又は500MPa以上であってよく、また1000MPa以下、900MPa以下、800MPa以下、又は700MPa以下であってよい。 The pressure during pressing may be, for example, 100 MPa or more, 200 MPa or more, 300 MPa or more, 400 MPa or more, or 500 MPa or more, and may be 1000 MPa or less, 900 MPa or less, 800 MPa or less, or 700 MPa or less.
〈接着層及び正極集電体層の積層〉
次いで、正極集電体層12の正極活物質層14と接することとなる側の主要部の中央部に、接着層40を積層させ、そして接着層40を介して正極集電体層12を正極活物質層14に積層させる。
<Lamination of adhesive layer and positive electrode current collector layer>
Next, an
接着層の積層は、例えば塗布により行うことができる。 The lamination of the adhesive layer can be performed by coating, for example.
正極集電体層の正極活物質層への積層は、例えば圧力を印加しながら加熱することにより行うことができる。この際の圧力は、例えば0.1MPa以上、0.2MPa以上、又は0.3MPa以上であってよく、また1.0MPa以下、0.9MPa以下、0.8MPa以下、又は0.7MPa以下であってよい。 Lamination | stacking to the positive electrode active material layer of a positive electrode electrical power collector layer can be performed by heating, for example, applying a pressure. The pressure at this time may be, for example, 0.1 MPa or more, 0.2 MPa or more, or 0.3 MPa or more, and 1.0 MPa or less, 0.9 MPa or less, 0.8 MPa or less, or 0.7 MPa or less. It's okay.
加熱の際の温度は、接着層として用いる物質に応じて適宜選択することができ、例えば200℃以下、180℃以下、又は150℃以下であってよく、又は80℃以上100℃以上、又は130℃以上であってもよい。 The temperature at the time of heating can be appropriately selected according to the substance used as the adhesive layer, and may be, for example, 200 ° C. or lower, 180 ° C. or lower, or 150 ° C. or lower, or 80 ° C. or higher and 100 ° C. or higher, or 130 It may be higher than or equal to ° C.
12 正極集電体層
14 正極活物質層
22 負極集電体層
24 負極活物質層
30 固体電解質層
40 接着層
100 本発明の一態様の全固体電池
200 本発明の別の態様の全固体電池
DESCRIPTION OF
Claims (1)
前記正極集電体層と前記正極活物質層との間又は前記負極集電体層と前記負極活物質層との間に、接着層が存在しており、前記接着層が存在している前記正極集電体層又は前記負極集電体層の主要部が、多角形状であり、かつ前記接着層が、前記主要部の各辺上又は全周に存在している、
全固体電池。 Having at least one unit all solid state battery having a positive electrode current collector layer, a positive electrode active material layer, a solid electrolyte layer, a negative electrode active material layer, and a negative electrode current collector layer in this order;
An adhesive layer exists between the positive electrode current collector layer and the positive electrode active material layer or between the negative electrode current collector layer and the negative electrode active material layer, and the adhesive layer exists. The main part of the positive electrode current collector layer or the negative electrode current collector layer has a polygonal shape, and the adhesive layer is present on each side or the entire circumference of the main part.
All solid battery.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2018027222A JP2019145285A (en) | 2018-02-19 | 2018-02-19 | All-solid battery |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2018027222A JP2019145285A (en) | 2018-02-19 | 2018-02-19 | All-solid battery |
Publications (1)
Publication Number | Publication Date |
---|---|
JP2019145285A true JP2019145285A (en) | 2019-08-29 |
Family
ID=67771243
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2018027222A Pending JP2019145285A (en) | 2018-02-19 | 2018-02-19 | All-solid battery |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP2019145285A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2022145120A1 (en) * | 2020-12-28 | 2022-07-07 | パナソニックIpマネジメント株式会社 | Battery, layered battery, and method for manufacturing same |
EP4057372A1 (en) | 2021-03-08 | 2022-09-14 | Prime Planet Energy & Solutions, Inc. | Method for producing secondary battery electrode and method for producing secondary battery |
JP2022543417A (en) * | 2020-06-25 | 2022-10-12 | エルジー エナジー ソリューション リミテッド | Electrode formed with binder layer and manufacturing method thereof |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0652866A (en) * | 1992-07-28 | 1994-02-25 | Yuasa Corp | Thin battery and manufacture thereof |
JP2000331675A (en) * | 1999-05-19 | 2000-11-30 | Mitsubishi Chemicals Corp | Manufacture of secondary battery electrode and manufacture of secondary battery |
JP2008060060A (en) * | 2006-08-04 | 2008-03-13 | Kyoritsu Kagaku Sangyo Kk | Coating liquid for manufacturing electrode plate, undercoating agent, and use thereof |
JP2009135079A (en) * | 2007-11-01 | 2009-06-18 | Nissan Motor Co Ltd | Bipolar type secondary battery, battery pack connecting a plurality of bipolar type secondary batteries, and vehicle mounting those batteries |
WO2012164642A1 (en) * | 2011-05-27 | 2012-12-06 | トヨタ自動車株式会社 | Bipolar all-solid-state battery |
JP2014022068A (en) * | 2012-07-12 | 2014-02-03 | Gs Yuasa Corp | Electrode body |
JP2015106525A (en) * | 2013-12-02 | 2015-06-08 | トヨタ自動車株式会社 | Electrode sheet and method of manufacturing the same |
-
2018
- 2018-02-19 JP JP2018027222A patent/JP2019145285A/en active Pending
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0652866A (en) * | 1992-07-28 | 1994-02-25 | Yuasa Corp | Thin battery and manufacture thereof |
JP2000331675A (en) * | 1999-05-19 | 2000-11-30 | Mitsubishi Chemicals Corp | Manufacture of secondary battery electrode and manufacture of secondary battery |
JP2008060060A (en) * | 2006-08-04 | 2008-03-13 | Kyoritsu Kagaku Sangyo Kk | Coating liquid for manufacturing electrode plate, undercoating agent, and use thereof |
JP2009135079A (en) * | 2007-11-01 | 2009-06-18 | Nissan Motor Co Ltd | Bipolar type secondary battery, battery pack connecting a plurality of bipolar type secondary batteries, and vehicle mounting those batteries |
WO2012164642A1 (en) * | 2011-05-27 | 2012-12-06 | トヨタ自動車株式会社 | Bipolar all-solid-state battery |
JP2014022068A (en) * | 2012-07-12 | 2014-02-03 | Gs Yuasa Corp | Electrode body |
JP2015106525A (en) * | 2013-12-02 | 2015-06-08 | トヨタ自動車株式会社 | Electrode sheet and method of manufacturing the same |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2022543417A (en) * | 2020-06-25 | 2022-10-12 | エルジー エナジー ソリューション リミテッド | Electrode formed with binder layer and manufacturing method thereof |
JP7376686B2 (en) | 2020-06-25 | 2023-11-08 | エルジー エナジー ソリューション リミテッド | Electrode with binder layer formed and method for manufacturing the same |
WO2022145120A1 (en) * | 2020-12-28 | 2022-07-07 | パナソニックIpマネジメント株式会社 | Battery, layered battery, and method for manufacturing same |
EP4057372A1 (en) | 2021-03-08 | 2022-09-14 | Prime Planet Energy & Solutions, Inc. | Method for producing secondary battery electrode and method for producing secondary battery |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
KR101998265B1 (en) | Nonaqueous electrolyte secondary battery and manufacturing method therefor | |
JP6885309B2 (en) | Series stacked all-solid-state battery | |
KR101664244B1 (en) | Method forming electrode surface pattern and the electrode manufactured by the method and secondary battery including the same | |
JP7069612B2 (en) | Manufacturing method of laminated electrode body, power storage element and laminated electrode body | |
US20090169986A1 (en) | Non-aqueous secondary battery and method for producing the same | |
CN110233281B (en) | All-solid-state battery | |
JP6879230B2 (en) | All solid state battery | |
JP2007012598A (en) | Nonaqueous electrolyte secondary battery and battery module | |
KR101840494B1 (en) | Electrode for a secondary battery, preparation method thereof and secondary battery including the same | |
JP6863299B2 (en) | All solid state battery | |
KR20130063709A (en) | Pouch for secondary battery and secondary battery using the same | |
JP2014532955A (en) | Secondary battery | |
JP2018073644A (en) | Secondary battery | |
JP2019145285A (en) | All-solid battery | |
JP2012151036A (en) | Laminated battery | |
JP2014120404A (en) | Secondary battery | |
JP6977554B2 (en) | All solid state battery | |
JP7087436B2 (en) | All solid state battery | |
JP6368044B2 (en) | Wound electrode body for galvanic element and method of manufacturing the same | |
CN111435729B (en) | Lithium ion secondary battery | |
JP7003762B2 (en) | All solid state battery | |
KR101722662B1 (en) | Pouch-Type Secondary Battery | |
JP6962240B2 (en) | All solid state battery | |
KR102197360B1 (en) | Electrode Assembly Comprising One-sided Coating Electrode of Improved Mechanical Strength | |
JP6681017B2 (en) | Secondary battery having electrode body |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
A621 | Written request for application examination |
Free format text: JAPANESE INTERMEDIATE CODE: A621 Effective date: 20201022 |
|
A977 | Report on retrieval |
Free format text: JAPANESE INTERMEDIATE CODE: A971007 Effective date: 20210915 |
|
A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20211102 |
|
A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20211214 |
|
A02 | Decision of refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A02 Effective date: 20220510 |