公开(公告)号：US4309203A

公开(公告)日：1982-01-05

申请号：US134905

申请日：1980-03-28

申请人： John L. Tworek ,  Gordon R. Rignel

发明人： John L. Tworek ,  Gordon R. Rignel

IPC分类号： C01B21/064 ,  C03B37/04 ,  C04B35/622 ,  D01F9/10 ,  D04H1/42 ,  D04H1/56 ,  H01M2/14 ,  H01M2/16

CPC分类号： H01M2/145 ,  C01B21/064 ,  C03B37/04 ,  C04B35/62227 ,  D04H1/56 ,  H01M2/1613 ,  C01P2004/10 ,  H01M2300/0048 ,  Y10T428/2916

摘要： A process is disclosed for producing non-woven, yet internally cohesive, boron nitride fiber batts, suitable for use as an electric cell separator in a lithium-sulfide battery. Molten boron oxide is centrifugally spun into strands and attenuated by an annular gas stream into fibers at a controlled relative humidity. The fibers are funnelled into a chamber and subjected to a turbulent air flow, which causes random orientation and intertwining of the fibers, resulting in multiple mechanical bonds thereamong. The compacted boron oxide fiber bundle thus produced is heated in an anhydrous ammonia atmosphere to convert boron oxide in the fibers into boron nitride (BN).

摘要翻译： 公开了用于生产适合用作硫化锂电池中的电池隔板的无纺布但内部粘合的氮化硼纤维絮片的方法。 将熔融的氧化硼离心旋转成股线，并通过环状气流在受控的相对湿度下被纤维减弱。 纤维被漏斗到室中并经受湍流空气流动，这导致纤维的随机取向和缠结，导致其中多次机械结合。 将如此制得的压实的氧化硼纤维束在无水氨气氛中加热，将纤维中的氧化硼转化为氮化硼（BN）。

公开(公告)号：US4309248A

公开(公告)日：1982-01-05

申请号：US134896

申请日：1980-03-28

申请人： John L. Tworek ,  Gordon R. Rignel

发明人： John L. Tworek ,  Gordon R. Rignel

IPC分类号： D01F9/08 ,  B29C67/24 ,  D04H1/42 ,  D04H1/54 ,  H01M2/14 ,  H01M2/16 ,  D21F11/00

CPC分类号： D21H13/40 ,  D21H13/36 ,  D21H5/1272 ,  D21H5/18 ,  H01M2/14

摘要： A process is disclosed for producing a non-woven, boron nitride-bonded boron nitride fiber mat, suitable for use as an electric cell separator in a lithium-sulfide battery. A web having a combination of structural boron nitride (BN) fibers and interstitial, thermally bondable boron oxide (B.sub.2 O.sub.3) fibers is passed through the nip of a pair of cooperating calender rolls at an appropriate temperature and pressure to soften the boron oxide binder throughout the web to fuse the BN fibers together. The interstitial boron oxide then is heated in an anhydrous ammonia atmosphere to convert it into boron nitride.

摘要翻译： 公开了用于生产适合用作硫化锂电池中的电池隔板的无纺布氮化硼结合氮化硼纤维垫的方法。 具有结构氮化硼（BN）纤维和间隙，可热结合的氧化硼（B2O3）纤维的组合的纤维网在适当的温度和压力下通过一对配合的压延辊的辊隙，以使整个过程中的氧化硼粘合剂软化 将BN纤维熔合在一起。 然后将间隙氧化硼在无水氨气氛中加热，将其转化为氮化硼。

公开(公告)号：US4309245A

公开(公告)日：1982-01-05

申请号：US134903

申请日：1980-03-28

申请人： John L. Tworek ,  Gordon R. Rignel

发明人： John L. Tworek ,  Gordon R. Rignel

IPC分类号： D04H1/42 ,  B29C67/24 ,  D04H1/72 ,  H01M2/14 ,  D21H5/18

CPC分类号： H01M2/14 ,  D21H13/36 ,  D21H5/18

摘要： A process is disclosed for producing a non-woven boron nitride (BN) fiber felt. Boron nitride fibers are blended with a lesser amount of boron oxide fibers and a nondissolving, anhydrous liquid medium to form a homogeneous slurry. The slurry is deposited on the moving screen of a Fourdrinier machine where the liquid content is gradually reduced until sufficient fiber to fiber contact is made to provide internal cohesiveness, to form a felt. The felt may be further treated by heating it in an anhydrous gas atmosphere at a sufficient temperature to soften the boron oxide binder to fuse the BN fibers together, and then converting the interstitial boron oxide into boron nitride. The resulting boron nitride-bonded boron nitride felt may be used as an electric cell separator in a lithium sulfide battery.

摘要翻译： 公开了用于生产无纺布氮化硼（BN）纤维毡的方法。 将氮化硼纤维与较少量的氧化硼纤维和非溶解的无水液体介质共混以形成均匀的浆料。 将浆料沉积在长网机的移动筛上，其中液体含量逐渐降低，直到足够的纤维与纤维接触以提供内部粘结性以形成毡。 可以通过在足够的温度下在无水气体气氛中加热毡来进一步处理毛毡，以软化氧化硼粘合剂以将BN纤维熔合在一起，然后将间隙氧化硼转变成氮化硼。 得到的氮化硼结合氮化硼毡可以用作硫化锂电池中的电池隔膜。

公开(公告)号：US4309244A

公开(公告)日：1982-01-05

申请号：US134765

申请日：1980-03-28

申请人： John L. Tworek ,  Gordon R. Rignel

发明人： John L. Tworek ,  Gordon R. Rignel

IPC分类号： D01F9/08 ,  B29C67/24 ,  C04B35/583 ,  C04B35/622 ,  D04H1/42 ,  D04H1/54 ,  H01M2/14 ,  D21H5/18 ,  D21H5/26

CPC分类号： C04B35/583 ,  C04B35/62227 ,  D21H13/36 ,  D21H5/18 ,  H01M2/14

摘要： A process is disclosed for producing a non-woven, boron nitride-bonded boron nitride fiber mat, suitable for use as an electric cell separator in a lithium-sulfide battery. Molten boron oxide is centrifugally spun into strands and attenuated by an annular gas stream into fibers which are compacted at a controlled relative humidity into a bundle and heated in an anhydrous ammonia atmosphere to convert boron oxide in the fibers to boron nitride (BN). The BN fibers are blended with a lesser amount of boron oxide fibers and a nonaqueous liquid medium to form a slurry. The slurry is processed through a Fourdrinier machine to form a felt; and, the felt is calendered by passing it through the nip of a pair of calender rolls at an appropriate temperature and pressure to soften the boron oxide binder to fuse the BN fibers together. The interstitial boron oxide then is converted to boron nitride.

摘要翻译： 公开了用于生产适合用作硫化锂电池中的电池隔板的无纺布氮化硼结合氮化硼纤维垫的方法。 将熔融的氧化硼离心旋转成股线，并通过环形气流减压成纤维，将纤维在受控的相对湿度下压成束，并在无水氨气氛中加热，将纤维中的氧化硼转化为氮化硼（BN）。 将BN纤维与较少量的氧化硼纤维和非水液体介质共混以形成浆料。 通过长网机加工浆料以形成毡; 并且通过在适当的温度和压力下将其通过一对压延辊的辊隙来使毡被压延，以软化氧化硼粘合剂以将BN纤维熔合在一起。 然后将间隙氧化硼转化为氮化硼。